The XPrinter XP-C260M is a fast and reliable thermal POS receipt printer designed for retail stores, restaurants, and supermarkets. With USB and LAN connectivity and support for 80mm paper, it delivers clear printing, high speed, and smooth operation for daily business use.
The ViewSonic 24″ 100Hz IPS Monitor is a high-performance display designed for work, entertainment, and gaming. It features a 24-inch Full HD IPS panel, delivering sharp visuals, vibrant colors, and wide viewing angles. Whether you’re working on creative projects, watching movies, or gaming, the high-quality display ensures a smooth and immersive experience. With a 100Hz refresh rate, this monitor provides ultra-smooth motion, reducing screen tearing and stuttering. The fast refresh rate enhances gaming, making movements appear fluid and responsive. It also improves everyday tasks like scrolling and video playback, providing a better overall visual experience. The IPS panel technology ensures consistent and accurate colors, making it ideal for content creators, designers, and professionals. The 178° wide viewing angles allow clear visibility from different positions, ensuring that images and text remain sharp and distortion-free. Designed with eye comfort in mind, the monitor features flicker-free technology and a blue light filter. These features help reduce eye strain and fatigue, making it comfortable for extended use. Whether you’re working long hours or enjoying a gaming session, this monitor keeps your eyes protected. The sleek and modern design fits seamlessly into any workspace or gaming setup. Its thin bezels provide a more immersive viewing experience, perfect for multi-monitor setups. The monitor includes multiple connectivity options, such as HDMI and DisplayPort, ensuring compatibility with a wide range of devices. With its fast refresh rate, stunning color accuracy, and ergonomic design, the ViewSonic 24″ 100Hz IPS Monitor is a great choice for professionals, gamers, and everyday users. It offers smooth performance, vibrant visuals, and long-term eye comfort in a stylish package. Specifications: Display : 24″ IPS Resolution : 1920×1080 FHD Refresh Rate : 100Hz Response Rate : 1ms
Laptop Battery for Acer E5-573 Battery for Acer AL15A32, Acer Aspire E5-422, Aspire E5-522, Aspire V3-574 Laptops. About this item Compatible For Preferred Model : Acer Aspire V3-574G E5-473G E5-573G E5-553G E5-522 Warranty Not Covered if Defects due to External Causes, Accidental, Physical or Liquid Damage, Cut, Burnt, Misuse and Missing Warranty Stickers or Labels. Battery Capacity/Power Capability (mAh/Wattage) be different From The Reference Picture But the Backup of the Battery Will Be the Same As the Original Please Match Your Product With The Image Provided Before Placing The Order
Step into the world of unparalleled gaming visuals with the AOC 24G4 24″ 180Hz Gaming Monitor. This cutting-edge display is designed to elevate your gaming experience to new heights. Boasting a 180Hz refresh rate, the AOC 24G4 ensures ultra-smooth gameplay, minimizing motion blur and providing a competitive edge. Immerse yourself in fluid graphics for a truly captivating gaming session. Equipped with a 24-inch screen, this gaming monitor strikes the perfect balance between size and clarity. Enjoy crisp details and vibrant colors, enhancing every pixel of your favorite games. Featuring AMD FreeSync technology, the AOC 24G4 synchronizes your monitor’s refresh rate with your graphics card, reducing screen tearing and stuttering. Say goodbye to disruptions and hello to seamless gaming performance. The sleek design of the monitor adds a touch of sophistication to your gaming setup. Its thin bezels create an expansive view, making you feel completely immersed in the action on-screen. Connectivity is a breeze with multiple ports, including HDMI and DisplayPort. Easily hook up your gaming console, PC, or other devices for a hassle-free gaming setup. In summary, the AOC 24G4 24″ 180Hz Gaming Monitor is a game-changer for avid gamers. With its high refresh rate, vivid display, and advanced features, it delivers an immersive gaming experience like no other. Upgrade your setup and take your gaming to the next level today! Specifications: Display : 23.8″ Fast IPS Resolution : 1920 × 1080 (FHD) Refresh Rate : 180Hz Response Time : 1ms
The Acer V226HQL widescreen LCD monitor offers reliable everyday performance for home and office use. It features a 21.5‑inch display with clear visuals and wide viewing angles, making it suitable for work, school tasks, or streaming content. As a result, you can enjoy crisp text and vibrant colors without strain. In addition, the monitor provides fast response times for smooth motion during videos and light gaming. Furthermore, its slim profile and narrow bezels help maximize screen space while fitting easily into most desk setups. The monitor also includes key connectivity options, so you can connect laptops, desktops, and media players quickly and without extra adapters. Overall, the Acer V226HQL balances essential features with dependable visual performance. Therefore, it is a smart choice for users seeking an affordable and functional widescreen display for everyday computing. Specifications: 21.5‑inch widescreen LCD display for clear visuals Fast response time for smooth motion Slim profile with narrow bezels Essential connectivity for multiple devices Reliable everyday performance for home and office use
WiWU Alpha Slim Sleeve Laptop Case 14/15.4/16 inch Inch Waterproof Bag With Handle For Macbook
Arabic Language Ultra Thin Silicone Keyboard Cover for 2021 2020 MacBook Air 13 Inch A2179 and A2337 Apple M1 Chip (US Layout) with Touch ID Keyboard Accessories Protective Skin (Black) Color Black-Arabic Compatible Devices 2021 2020 MacBook Air 13.3-Inch with Apple M1 Chip (model: A2337), 2020 MacBook Air 13.3-Inch (model: A2179)2021 2020 MacBook Air 13.3-Inch with Apple M1 Chip (model: A2337), 2020 MacBook Air 13.3-Inch (model: A2179) Material Silicone Special Feature Waterproof, Dust Proof About this item [√] COMPATIBLE WITH: ONLY U.S keyboard layout–MacBook Air 13″ with Touch ID Early 2020 (model: A2179) and 2021 2020 MacBook Air 13″ with Apple M1 Chip (model: A2337). [√] MORE PROTECTION for KEYBOARD: waterproof, dust-proof and dirt-proof design can prevent liquid, dust, cigarette ash, biscuit crumbs falling onto your keyboard to affect your keyboard’s life. [√] ACCURATE KEYS: every key is specially molded, manufactured to the quality available. Flexible, this cover is easy to apply and remove for cleaning or disinfecting. [√] 0.25 MM THICKNESS: ultra thin silicone keyboard cover skin, made it easier for typing. Soft keyboard protector can weaken the sound in typing. About this item [√] COMPATIBLE WITH: ONLY U.S keyboard layout–MacBook Air 13″ with Touch ID Early 2020 (model: A2179) and 2021 2020 MacBook Air 13″ with Apple M1 Chip (model: A2337). [√] MORE PROTECTION for KEYBOARD: waterproof, dust-proof and dirt-proof design can prevent liquid, dust, cigarette ash, biscuit crumbs falling onto your keyboard to affect your keyboard’s life. [√] ACCURATE KEYS: every key is specially molded, manufactured to the quality available. Flexible, this cover is easy to apply and remove for cleaning or disinfecting. [√] 0.25 MM THICKNESS: ultra thin silicone keyboard cover skin, made it easier for typing. Soft keyboard protector can weaken the sound in typing.
Genuine-spec touchpad flex cable compatible with both MacBook Air A2179 (Intel, 2020) and A2337 (M1, 2020)—restores full Force Touch functionality, haptic feedback, and precise multi-touch gesture control during trackpad repair or replacement. Compatible With: MacBook Air 13″ (2020, Intel) – Model A2179 (Model Identifier: MacBookAir9,1) MacBook Air 13″ (2020, Apple M1) – Model A2337 (Model Identifier: MacBookAir10,1) MacBook Air 13″ (2020, Intel) – Model A2179 (Model Identifier: MacBookAir9,1) MacBook Air 13″ (2020, Apple M1) – Model A2337 (Model Identifier: MacBookAir10,1) ✅ Important Note: Despite different processors (Intel vs. M1), Apple used the same trackpad assembly and flex cable in both A2179 and A2337. This makes the flex cable fully interchangeable between the two models. Part Type: Touchpad flex cable only — does not include the trackpad housing, Taptic Engine, or mounting hardware. This is the OEM-style ribbon cable that connects the trackpad to the logic board. Function: Transmits: Touch input coordinates Force Touch pressure data Haptic feedback signals to the Taptic Engine Enables full macOS gesture support: Force Click, three-finger lookup, swipe navigation, pinch-to-zoom, and smooth cursor tracking. Touch input coordinates Force Touch pressure data Haptic feedback signals to the Taptic Engine Enables full macOS gesture support: Force Click, three-finger lookup, swipe navigation, pinch-to-zoom, and smooth cursor tracking. OEM-Quality Build: Matches Apple’s original specifications in: Cable length and routing path Connector pitch and ZIF latch design EMI shielding and flex durability Cable length and routing path Connector pitch and ZIF latch design EMI shielding and flex durability Common Use Cases: Replacing a torn, creased, or liquid-damaged original flex cable Completing a trackpad replacement when the original cable is compromised Fixing intermittent trackpad behavior, loss of Force Touch, or complete unresponsiveness Replacing a torn, creased, or liquid-damaged original flex cable Completing a trackpad replacement when the original cable is compromised Fixing intermittent trackpad behavior, loss of Force Touch, or complete unresponsiveness Installation Note: Requires full bottom case removal and battery disconnection. Cable routes under the right side of the battery and logic board. Connects via a ZIF (Zero Insertion Force) socket—align carefully and latch gently. Recommended for experienced or certified technicians only. Requires full bottom case removal and battery disconnection. Cable routes under the right side of the battery and logic board. Connects via a ZIF (Zero Insertion Force) socket—align carefully and latch gently. Recommended for experienced or certified technicians only.
Arabic Silicone Keyboard Skin Cover for MacBook Pro 13" A1708 Without Touch bar and MacBook 12" A1534 with Retina Display US Layout (Black) Arabic Silicone Keyboard Skin Cover for MacBook Pro 13″ A1708 Without Touch bar and MacBook 12″ A1534 with Retina Display US Layout (Black) About this item Arabic language silicone keyboard skin, US version, perfect fit for your MacBook 12″ A1534, which was released in 2015 & new MacBook Pro 13-Inch 13″ Model A1708 without/no Touch Bar, which was released in 2016; Do not fit for Europe Version MacBook Handmade Skin – XSKN is the original Manufacturer of these “Keyboard Art Skin” silicone covers. They are durable, thin and soft with a cashmere feel. The keys fit snug over the keyboard, smooth surface treatment, suit for regular laptop user who types a lot and quickly Each XSKN silicone skin is heat molded to ensure, each color is paints taking hand screened using silicone paint which is heat fuses into the silicone keyboard skin to become one, making it Soft, ultra-thin, durable and easy to washable High quality silicone raw material assure no extension with longtime using. Every detail clearly prinited, imported ink keep it looking good, rubber coating help to remain in good condition Aside from being beautiful they protect your keyboard from spills, crumbs, animal hair and dust. Washable, can be cleaned easily
The LG 32GN600-B 32″ Monitor delivers clear and smooth visuals for gaming and everyday use.It features a 32-inch QHD display with sharp details and vibrant colors. Moreover, its high refresh rate ensures fluid motion in fast-paced games and videos. This monitor uses a VA panel for strong contrast and wide viewing angles. Additionally, the fast response time reduces blur and ghosting during competitive gaming. The anti-glare screen helps minimize reflections in bright environments. HDMI and DisplayPort inputs allow easy connection to PCs, laptops, and gaming consoles. Furthermore, tilt adjustment helps you find a comfortable viewing angle for long sessions. Low blue light and flicker-free technologies reduce eye strain during extended use. This display is ideal for gamers, streamers, and home users alike. Therefore, it supports competitive gaming, media streaming, and productivity tasks. Finally, it combines sharp visuals, fast performance, and comfort features for daily use. Specifications: Screen Size: 32″ QHD VA panel Resolution: 2560 × 1440 Refresh Rate: High for smooth motion Ports: HDMI + DisplayPort Features: Anti-glare, low blue light, flicker-free eye care
The ASUS VA249HG 24″ FHD Eye Care Monitor offers clear and sharp Full HD visuals. It provides bright colors and strong contrast. This makes movies, work, and daily tasks look clean and detailed. The 24-inch screen size is perfect for desks and small spaces. Moreover, the ASUS VA249HG 24″ FHD Eye Care Monitor includes a fast 75Hz refresh rate. This improves motion and reduces blur. It gives smoother movement during games and videos. This helps you enjoy a better viewing experience. In addition, the monitor features Adaptive Sync support. This reduces tearing and stuttering during fast action. Your screen stays smooth and steady. This makes it ideal for gamers and casual users. Furthermore, the ASUS VA249HG 24″ FHD Eye Care Monitor includes ASUS Eye Care technology. It reduces blue light and screen flicker. This helps protect your eyes during long hours of use. You can work, watch, or study more comfortably. Also, the monitor uses a VA panel for deep colors. It shows richer blacks and strong contrast levels. This improves the quality of movies and photos. It also works well for everyday design tasks. The clean and modern design of the ASUS VA249HG 24″ FHD Eye Care Monitor fits any workspace. The stand is stable and simple to adjust. You can tilt the screen for better comfort. This helps you find your ideal viewing angle. Overall, the ASUS VA249HG 24″ FHD Eye Care Monitor offers smooth performance, eye protection, and strong image quality. It is a great choice for home, office, and gaming use. It provides comfort, clarity, and value in one dependable display. Specifications: Display : 24″ IPS Resolution : FHD Refresh Rate : 120Hz Response Time : 1ms Model : 90LM02W0-B01171
Are you in search of a high-performance gaming monitor? Look no further! The MSI MPG 274URF QD 27″ 160Hz gaming monitor is here to elevate your gaming experience. This monitor combines cutting-edge technology with sleek design to provide an unbeatable gaming setup. Firstly, let’s talk about the impressive display. The 27-inch screen size offers ample viewing space, making every detail pop. The Quantum Dot technology ensures vibrant and accurate colors, enhancing the overall visual experience. In addition, the 160Hz refresh rate is a game-changer. It ensures smooth and fluid motion, reducing blur and lag. This is essential for fast-paced games where every millisecond counts. With the MSI MPG 274URF QD, you can stay ahead of the competition. Moreover, the 1ms response time minimizes input lag. This allows for quick reactions and precise movements, crucial for competitive gaming. Every action you take will be instantaneously reflected on the screen, providing a seamless gaming experience. Furthermore, this gaming monitor supports HDR, delivering stunning contrast and brightness. You will enjoy deeper blacks and brighter whites, bringing your games to life. The detailed shadows and highlights will immerse you in the game world like never before. Comfort is also a key feature of the MSI MPG 274URF QD. The ergonomic design allows you to adjust the height, tilt, and swivel to find the perfect viewing angle. This ensures you can game comfortably for hours without straining your neck or eyes. Additionally, the monitor comes with multiple connectivity options. Easily connect your PC, console, or other devices with the available HDMI, DisplayPort, and USB ports. This versatility makes it a great addition to any gaming setup. In conclusion, the MSI MPG 274URF QD 27″ 160Hz gaming monitor offers superior performance and stunning visuals. Whether you’re a casual gamer or a professional, this monitor will enhance your gaming experience. Upgrade your setup today and enjoy the best in gaming technology! Specifications: Display : 27″ Rapid IPS Resolution : 3840×2160 (UHD) Refresh Rate : 160Hz Response Rate : 0.5ms
Used OEM Original Apple Logic Board Working, 2018 Model 2.7Ghz I7 251gb 16gb (A1989) + Original Touch ID, Tested using latest industry hardware diagnostic software, Fresh pull from fully Working nearly new unit. SPECIFICATION:
The Samsung 77-Inch OLED S90F 4K Vision AI Smart TV | QA77S90FAEXTW is a premium entertainment display that combines OLED picture quality with advanced AI-powered features. Designed for movie enthusiasts, gamers, and streaming fans, it delivers stunning visuals with exceptional color accuracy and contrast. In addition, the large 77-inch screen creates a more immersive viewing experience for any home theater setup. The OLED panel features self-illuminating pixels, and it produces deep blacks with remarkable contrast. As a result, dark scenes appear more detailed while bright highlights remain vivid and realistic. Furthermore, the 4K UHD resolution ensures sharp image quality, making every scene look clear and lifelike. Samsung integrates Vision AI technology into this model, and it intelligently enhances picture and sound performance in real time. Therefore, content appears more refined and optimized regardless of the source. In addition, AI upscaling improves lower-resolution content by bringing it closer to 4K quality. HDR support enhances brightness and expands color depth, so viewers can enjoy more realistic visuals with greater dynamic range. Meanwhile, Samsung’s Smart TV platform provides seamless access to popular streaming services, gaming features, and smart home controls. The slim OLED design adds a premium look to any living space, while the advanced processing technology ensures smooth performance across movies, sports, and games. Overall, the Samsung 77-Inch OLED S90F 4K Vision AI Smart TV offers premium picture quality, intelligent features, and an immersive entertainment experience. Specifications: OLED display technology delivers deep blacks and exceptional contrast 77-inch 4K UHD screen provides immersive large-format viewing Vision AI enhances picture and audio quality in real time HDR support improves brightness, contrast, and color accuracy Smart TV platform offers streaming apps and smart home connectivity
Mini Slim Wired USB Numeric Digital Keyboard Number Pad (18 Keys) Numeric Keypad for Laptop,18 Key USB Keypad, Numerical Keypad Wired Portable Ultra Slim Mini Numpad External Numbers Keyboard Pad for Laptop PC Computer Desktop Surface pro Notebook
The Lenovo Legion R45w-30 44.5″ Dual QHD Gaming Monitor gives you a massive, ultra-wide screen for gaming, work, and media. Its 44.5-inch curved panel wraps around your view for full immersion. The Dual QHD resolution (5120 × 1440) delivers sharp, detailed images and wide viewing space. This helps games and content feel vivid and real. Moreover, the Lenovo Legion R45w-30 44.5″ Dual QHD Gaming Monitor uses a fast 165 Hz refresh rate — and can overclock up to 170 Hz for ultra-smoother motion. Fast movements and animations appear smooth and fluid. In addition, the monitor features a VA panel with strong contrast (3000:1), deep colors, and wide viewing angles. Colors stay rich and natural even from side angles. It supports 99% sRGB and wide-gamut coverage, ideal for gaming, creative work, and media editing. The 1500R curve and anti-glare surface improve comfort and immersion. Furthermore, the Lenovo Legion R45w-30 44.5″ Dual QHD Gaming Monitor includes modern connectivity. It offers HDMI 2.1, DisplayPort 1.4, USB-C (with power delivery and data), USB hub ports, and even Ethernet. Also, the monitor adds useful features like built-in speakers, adaptive sync (AMD FreeSync Premium Pro), HDR support (DisplayHDR 400), and ergonomic stand adjustments. The stand allows height, tilt, and swivel changes for comfortable setup. Its curved, wide display boosts productivity, creativity, and gaming immersion. Overall, the Lenovo Legion R45w-30 44.5″ Dual QHD Gaming Monitor blends size, speed, clarity, and flexibility into one powerful screen. It transforms your PC into a wide, immersive workstation or gaming setup. This monitor is perfect for gamers, creators, and multitaskers who want maximum space and smooth performance. Specifications: Display : 44.5″ VA Resolution : 5120×1440 Refresh Rate : 165Hz Response Time : 1ms Curvature : 1500R
Are you in search of a high-quality monitor for work or play? Look no further than the ViewSonic VA3456-MHDJ. With its expansive 34-inch display and smooth 75Hz refresh rate, this monitor delivers an immersive viewing experience like no other. Firstly, let’s delve into the impressive display capabilities of the VA3456-MHDJ. With a spacious 34-inch screen and ultra-wide aspect ratio, you can enjoy stunning visuals with crisp detail and vibrant colors. Whether you’re editing photos, watching movies, or gaming, every image comes to life with remarkable clarity. Moreover, the 75Hz refresh rate ensures smooth and fluid performance, ideal for fast-paced gaming or multimedia content. Say goodbye to motion blur and screen tearing, and enjoy a seamless viewing experience with every frame. Additionally, the VA3456-MHDJ features versatile connectivity options to suit your needs. With HDMI, DisplayPort, and VGA inputs, you can easily connect to a variety of devices, including laptops, desktops, and gaming consoles. Switch between sources effortlessly and enjoy multimedia content from different sources with ease. Furthermore, this monitor is designed with your comfort in mind. The ergonomic stand offers tilt and height adjustment options, allowing you to find the perfect viewing position for extended use. Say goodbye to neck strain and discomfort, and enjoy hours of immersive viewing in total comfort. In conclusion, the ViewSonic VA3456-MHDJ 34″ 75Hz Monitor is the perfect choice for those seeking superior visual quality, smooth performance, and ergonomic design. Elevate your viewing experience and immerse yourself in stunning visuals with this impressive monitor. Specifications: Display : 34″ IPS Resolution : UWQHD 3440 x 1440 Refresh Rate : 75Hz Response Rate : 4ms GTG
The LG 27MK60TM 27″ Monitor delivers clear and immersive visuals for work, study, and entertainment.It features a large 27-inch Full HD display that shows crisp image detail and smooth video.Moreover, the slim design fits well on desks at home and in office setups. This monitor uses an IPS panel for wide viewing angles and consistent color from many positions.Additionally, anti-glare coating helps reduce reflections in bright lighting.Fast response time helps reduce blur during movies and casual gaming. The LG 27MK60TM also includes HDMI and VGA ports for flexible connectivity.Furthermore, tilt adjustment lets you find a comfortable viewing angle.Low blue light and flicker-safe technology help reduce eye strain over time. This display suits students, professionals, and home users alike.Therefore, it supports productivity, browsing, streaming, and everyday computing.Finally, it combines solid picture quality, reliable performance, and user-friendly features for daily use. Specifications: 27″ Full HD (1920 × 1080) IPS panel HDMI + VGA ports for device connection Anti-glare coating for comfortable viewing Tilt-adjustable stand for ergonomic use Low blue light and flicker-safe eye care
Experience entertainment like never before with the ViewSonic 32″ 75Hz Monitor VX3276-MHD-3. This monitor is designed to take your viewing experience to the next level. Featuring a spacious 32-inch display, enjoy crisp and clear visuals with vibrant colors and sharp details. Dive into your favorite movies, shows, and games with immersive clarity and realism. With a refresh rate of 75Hz, this monitor ensures smooth and fluid motion, reducing motion blur for a more enjoyable viewing experience. Say goodbye to choppy visuals and hello to seamless entertainment. Transitioning to design, the VX3276-MHD-3 boasts a sleek and modern design that complements any space. Its ultra-thin bezel provides a larger viewing area, maximizing your screen real estate for an immersive experience. Moreover, the monitor’s versatile connectivity options allow you to easily connect to your favorite devices, whether it’s your gaming console, streaming device, or PC. Enjoy hassle-free entertainment with seamless connectivity. Additionally, the VX3276-MHD-3 is equipped with ViewSonic’s exclusive ViewMode presets, offering optimized settings for different viewing scenarios. Choose from various presets like Game, Movie, and Web to customize your viewing experience. In conclusion, the ViewSonic 32″ 75Hz Monitor VX3276-MHD-3 is the perfect companion for your entertainment needs. With its stunning visuals, smooth performance, and versatile design, it’s sure to enhance your viewing experience. Upgrade your entertainment setup today and immerse yourself in a world of endless entertainment possibilities. Specifications: Display : 32″ IPS Resolution : FHD (1920×1080) Refresh Rate : 75Hz Response Rate : 4ms GTG
AOC U32V11N 31.5-inch 4K monitor delivers ultra-clear visuals and large screen workspace for productivity and media use. It focuses on high resolution, strong contrast, and comfortable long-term viewing. Additionally, it features a 31.5-inch VA panel with 4K UHD resolution (3840 × 2160). This resolution provides very fine detail and more screen space, so it improves multitasking and content clarity. Moreover, it supports a 60Hz refresh rate with 4ms GtG response time. As a result, it delivers stable performance for office work, design, and general use. The monitor offers a high 3500:1 contrast ratio with HDR10 support and 10-bit color. Therefore, it enhances color depth and improves brightness and dark scene detail. In addition, it includes Picture-by-Picture and Picture-in-Picture modes. These features allow multiple input sources on one screen, so multitasking becomes more efficient. Furthermore, it includes Low Blue Mode and Flicker-Free technology. So it reduces eye strain during long working hours. The design features a three-sided frameless layout with HDMI 2.0 and DisplayPort 1.4 connectivity. It also supports VESA mounting for flexible setup options. AOC U32V11N 31.5-inch 4K monitor provides sharp visuals, strong contrast, and productivity-focused features for everyday professional use. Specifications: 31.5-inch VA panel with 3840 × 2160 4K UHD resolution 60Hz refresh rate with 4ms GtG response time HDR10 support with 10-bit color depth 3500:1 contrast ratio for deeper blacks and detail PIP and PBP multitasking with HDMI and DisplayPort connectivity
