The Samsung 86″ Interactive E-Board LH86WACW offers a large and clear display for classrooms and meeting rooms. It shows bright images with strong detail. The screen size allows everyone in the room to see clearly. This improves communication and teamwork. Moreover, the Samsung Interactive E-Board LH86WACW supports smooth touch control. You can write, draw, and move items with ease. The touch response feels fast and natural. This helps teachers and teams present ideas more effectively. In addition, the board includes multiple connection options. You can connect laptops, tablets, and other devices quickly. This makes sharing content easier for everyone. The board also supports wireless features for more flexible use. Furthermore, the Samsung 86″ Interactive E-Board LH86WACW includes built-in software tools. These tools allow easy note-taking and smart collaboration. You can save your work and share it instantly. This helps improve learning and workflow. Also, the display uses strong protection glass. It resists scratches and damage during daily use. The durable design makes it ideal for schools and offices. It stays reliable even with heavy use. The sleek design of the Samsung Interactive E-Board LH86WACW looks modern and professional. It fits well in classrooms, conference rooms, and training centers. The slim frame gives the screen a clean and elegant look. This makes every space feel more advanced. Overall, the Samsung 86″ Interactive E-Board LH86WACW offers clear visuals, fast touch control, and smart tools in one device. It helps teams share ideas better and faster. It also makes lessons more interactive and engaging. This board is perfect for education, business, and training environments. Specifications: Display : 86″ IPS Resolution : 3840×2160 Refresh Rate : 60Hz Response Time : 8ms Model : LH86WACW
Professional battery testing flex cable for MacBook Pro 15″ (Model A1990, 2018–2019)—used by technicians to bypass a faulty battery or diagnose power-on issues without permanent battery removal. Enables safe logic board testing and troubleshooting. This is not a replacement battery cable—it’s a diagnostic tool used in repair workflows. It mimics the battery’s presence by providing the necessary SMBus signal and power-enable lines to the logic board, allowing the MacBook to: Power on without a battery installed Test logic board functionality independently Diagnose whether a no-power issue is caused by the battery or logic board MacBook Pro 15″ (2018–2019) Model: A1990 Model Identifiers: MacBookPro15,2 Chip: Intel Core i7/i9 Model: A1990 Model Identifiers: MacBookPro15,2 Chip: Intel Core i7/i9 ⚠️ Not compatible with A1707 (2016–2017), A2159 (16″), or any M1/M2 models. Simulates battery presence via correct SMBus resistance and ID signals Includes power-enable circuitry matching Apple’s safety protocol Pre-terminated with OEM-style connector for A1990 logic board Allows safe bench testing of logic boards during repair Diagnosing “no power, no fan spin, no display” issues Verifying if a logic board powers on without risking a shorted battery Testing after liquid damage or DC-in board replacement Avoiding unnecessary battery replacements during diagnostics Not for permanent installation—intended for temporary diagnostic use only Does not charge or store power—requires connected USB-C power adapter to operate Must be used with a known-good power adapter (87W recommended) Not a consumer part—designed for professional repair shops and technicians
807956-001 807957-001 Replacement HS03 HS04 Laptop Battery for HP 240 G4, 245 G4, 250 G4, 255 G4, 256 G4 Series fits Notebook 14 14G 15 15G HP 807611-421 807611-131 HSTNN-LB6U HSTNN-LB6V About this item Battery Type: Li-ion Voltage: 14.8V Capacity: 2200MAH CELL: 4cell Color: Black. Compatible Models: HP 240 G4 Series, HP 245 246 G4 Series, HP 250 255 256 G4 Series, HP Notebook 14 14g 15 15g Series. Replacement For: HSO4, HSO3, HSTNN-LB6V, HSTNN-LB6U, 807957-001, 807956-001, 807611-421, 807612-421 TPN-C125 TPN-C126 TPN-I119 TPN-I120. 100% New from the Manufacturer, with About 500 recharge cycles over the life of the battery. Overcharger and Discharger Circuit Protection, CE-/FCC-/RoHS-Certified for safety.
Philips 241V8W/89 23.8-inch IPS Full HD monitor delivers clear visuals and reliable everyday performance. It focuses on wide viewing angles, smooth motion, and eye comfort for home and office use. Additionally, it features a 23.8-inch IPS panel with Full HD resolution (1920 × 1080). This provides sharp detail and consistent colors, so it improves viewing quality from different angles. Moreover, it supports a 75Hz refresh rate with Adaptive Sync. As a result, it delivers smoother motion and reduces screen tearing during video playback and casual use. The monitor includes a 4ms response time (GtG). Therefore, it handles everyday tasks smoothly with reduced motion blur. In addition, it uses an anti-glare coating with LowBlue Mode and Flicker-Free technology. So it reduces eye strain during long working sessions. Furthermore, it offers HDMI and VGA connectivity. This ensures compatibility with modern and older devices for flexible setups. Philips 241V8W/89 23.8-inch IPS monitor provides a balanced mix of clarity, comfort, and smooth performance for daily use. Specifications: 23.8-inch IPS panel with Full HD 1920 × 1080 resolution 75Hz refresh rate with Adaptive Sync support 4ms GtG response time for smooth visuals Anti-glare coating with wide 178° viewing angles LowBlue Mode and Flicker-Free eye comfort technology
The HP P24V G5 FHD VA monitor delivers clear and vibrant visuals with its 24‑inch Full HD display. As a result, it makes everyday computing, work tasks, and media viewing more enjoyable with sharp detail and rich colors. In addition, the VA panel provides wide viewing angles, so the image stays consistent even when you move around your desk. Furthermore, this monitor includes fast response times that help reduce motion blur when watching videos or casual gaming. It also offers essential connectivity options, making it easy to connect laptops, desktops, or media players without adapter hassles. Therefore, it fits well in both home and office setups. Overall, the HP P24V G5 strikes a good balance between performance and practicality, giving users dependable display quality at an affordable level. Specifications: 24″ Full HD VA display with wide viewing angles Clear visuals and vibrant colors Fast response for smooth motion Essential connectivity for multiple devices Ideal for everyday work and entertainment use
The MSI PRO MP272L E2 27-inch business monitor is designed for productivity, office workflows, and everyday multitasking. It offers a clean and modern design that fits well in professional setups. Therefore, it helps users stay focused while maintaining an organized workspace. Moreover, the IPS panel delivers consistent colors and wide viewing angles for comfortable collaboration. The Full HD resolution ensures clear text and sharp visuals for documents, spreadsheets, and web browsing. In addition, the 100Hz refresh rate provides smoother scrolling and a more responsive experience than standard office displays. The monitor also includes MSI Eye Care technologies such as anti-flicker and low blue light support. As a result, it reduces eye strain during long working sessions. Furthermore, adaptive sync support helps improve smoothness in general media playback. In addition, the MSI PRO MP272L E2 27-inch business monitor supports multiple connectivity options, making it easy to connect laptops, desktops, and other devices. It also includes tilt adjustment for better ergonomic positioning. Consequently, it is suitable for both home offices and corporate environments. The MSI PRO MP272L E2 27-inch business monitor delivers a balanced mix of comfort, clarity, and productivity-focused performance. Specifications: 27-inch Full HD (1920 × 1080) IPS display 100Hz refresh rate for smoother visuals Anti-flicker and low blue light eye-care technology Wide 178° viewing angles for consistent colors HDMI and DisplayPort connectivity with ergonomic tilt support
The BenQ PD2706U 27″ 4K 60Hz Monitor is crafted for designers and content creators who demand color accuracy and clarity. Its 27-inch IPS panel delivers a 3840×2160 resolution, ensuring sharp visuals and detailed imagery. With 95% DCI-P3, 100% sRGB, and 100% Rec.709 color space coverage, this monitor offers vibrant and true-to-life colors. Factory calibration ensures Delta E ≤ 3, providing consistent color accuracy across projects. The PD2706U supports HDR10 and VESA DisplayHDR 400, enhancing dynamic range for more realistic images. Its anti-glare screen and 178° viewing angles ensure comfortable viewing in various lighting conditions. Connectivity is streamlined with a 90W USB-C port, HDMI 2.0, and DisplayPort 1.4, facilitating easy integration with multiple devices. The built-in KVM switch allows control of two systems using one keyboard and mouse setup. Ergonomic features include height adjustment, tilt, swivel, and pivot, enabling users to customize their viewing experience for comfort. The monitor’s sleek design complements modern workspaces. Additional features like Low Blue Light and Flicker-Free technology reduce eye strain during extended use. The included Hotkey Puck G2 provides quick access to frequently used settings. In summary, the BenQ PD2706U 27″ 4K 60Hz Monitor combines high-resolution display, accurate color reproduction, and user-friendly features, making it an excellent choice for creative professionals. Specifications: Display : 27″ IPS Resolution : 4K (3840×2160) Refresh Rate : 60Hz Response Time : 5ms Speaker : Integrated
The Lenovo 65W Round-Tip AC Adapter (AU) provides reliable and efficient power for compatible Lenovo laptops. Designed with a round-tip connector and Australian plug, it’s perfect as a replacement or travel charger. ⚡ 65W Power Output: Delivers stable and efficient charging for Lenovo laptops and notebooks. 🔌 Round-Tip Connector: Designed specifically for Lenovo models using the classic round charging port. 🇦🇺 AU Power Plug: Built for Australian power outlets — ideal for home, office, and travel use in AU regions. 👜 Compact & Portable: Lightweight design makes it easy to carry in a bag or backpack. 🔒 Safe Charging: Features over-voltage, over-current, and short-circuit protection. 🛠️ OEM-Compatible: Works with a wide range of ThinkPad, ThinkBook, and IdeaPad models using round-tip charging.
WiWU 14-inch & 15.6-inch Minimalist Laptop Sleeve for Macbook Air 2020 Protective Case Minimalist Laptop Sleeve Water resistant polyester+ Fax fur lining Ultra slim design with front pocket Including packing weight:14inch 280g/15.6inch 320g WiWU 14-inch & 15.6-inch Minimalist Laptop Sleeve for Macbook Air 2020 Protective Case
90W AC Charger Fit for Acer Aspire Z 24 Z24-890 Z24-880-UR13 Z22-780 Z24-890-UR11 Z24-890-UA91 Z24-890-UR13 Z24-890-UR16 Aspire 7 A715-76-765N A715-76-73L8 Laptop Adapter Power Supply Cord
Looking for a monitor that delivers unparalleled visual performance? Look no further than the ViewSonic ColorPro 32″ 4K Monitor. With its cutting-edge technology and sleek design, it’s the ultimate choice for professionals and enthusiasts alike. Featuring a stunning 32-inch 4K display, this monitor brings your content to life with breathtaking clarity and detail. Whether you’re editing photos, designing graphics, or watching movies, every pixel pops with vivid color and crisp definition. Moreover, the ViewSonic ColorPro monitor is calibrated to deliver precise color accuracy, making it ideal for graphic design, photography, and video editing. Say goodbye to color distortion and enjoy true-to-life hues that enhance your creative workflow. But it’s not just about visuals—the ViewSonic ColorPro monitor also offers exceptional functionality. With advanced connectivity options like HDMI, DisplayPort, and USB-C, you can easily connect your devices for seamless multitasking. Additionally, the monitor’s ergonomic design ensures comfortable viewing during long hours of use. Adjustable tilt, swivel, and height settings allow you to find the perfect position for maximum productivity and comfort. In summary, the ViewSonic ColorPro 32″ 4K Monitor combines stunning visuals, precise color accuracy, and versatile connectivity to deliver an unparalleled viewing experience. Whether you’re a professional creator or a discerning enthusiast, elevate your display with ViewSonic ColorPro. Specifications: Display : 32″ IPS Resolution : 3840 x 2160 UHD Refresh Rate : 60Hz Response Rate : 5ms
Logitech C270 HD webcam — 720p USB camera with built-in mic and automatic light correction. Solid pick for video calls, remote work, or basic streaming. This is the Logitech C270 HD Webcam, a budget plug-and-play USB camera suited for everyday video calls. It doesn’t strive for professional streaming quality, but it reliably handles meeting needs, student calls, or backup cam duties. Key Features & Functionality Records video in HD 720p at 30 fps Fixed focus lens (no autofocus) Built-in mono microphone with noise reduction (captures voice clearly in standard environments) Automatic light correction (RightLight / similar tech) to adjust in low or uneven lighting Universal mounting clip: works on laptop lids, monitors, or can sit on a shelf USB 2.0 interface, 1.5 m (≈ 5 ft) cable length Technical Specifications Strengths & Limitations Pros: Reliable and easy to set up: plug and play Good for video calls in decent lighting Noise suppression in mic helps reduce background hiss Affordable alternative if your built-in camera fails Cons: Only 720p — not ideal for high quality streaming Fixed focus — manual adjusting can’t zoom/focus No privacy shutter (you may need stickers or external cover) Color and sharpness aren’t top tier under weak light
WiWU Linker 721HD Hub – Compact USB-C hub with 7 ports including 100W PD, dual USB-A, USB-C data, HDMI 4K60, and dual SD/TF slots.Aluminum body, plug‑and‑play compatibility with MacBooks and modern USB‑C devices—ideal for laptop expansion. Model: Linker 721HD (WiWU) Material: Aluminum-alloy shell Ports: 2 × USB‑A 3.1 1 × USB‑C 3.1 (data) 1 × USB‑C PD power delivery (up to 100 W) 1 × HDMI (4K @ 60 Hz) SD card slot + micro‑SD (TF) slot (USB 3.0 speed) Ports: 2 × USB‑A 3.1 1 × USB‑C 3.1 (data) 1 × USB‑C PD power delivery (up to 100 W) 1 × HDMI (4K @ 60 Hz) SD card slot + micro‑SD (TF) slot (USB 3.0 speed) Cable: Fixed USB‑C male cable (approx. 15 cm) Compatibility: Plug-and-play with USB-C/Thunderbolt 3/4 devices (MacBook, XPS, Chromebooks, mobile devices with DP-Alt Mode) Design: Compact, space gray finish optimized for travel/work setups Weight: ~150 g
The LG UltraWide 34″ 60Hz Curved Monitor offers an expansive 21:9 aspect ratio, providing ample screen space for multitasking and immersive viewing. Its 3440 x 1440 resolution delivers sharp and detailed visuals, enhancing both productivity and entertainment experiences. Featuring a curved IPS display, this monitor ensures consistent color accuracy and wide viewing angles, making it ideal for creative professionals and gamers alike. The 60Hz refresh rate provides smooth motion, suitable for everyday tasks and casual gaming. Equipped with HDR10 support, the monitor enhances contrast and color range, bringing visuals to life with greater depth and realism. The sRGB 99% color gamut ensures vibrant and accurate colors, essential for photo and video editing. Connectivity options include USB Type-C, HDMI, and DisplayPort, allowing seamless integration with various devices. The USB Type-C port supports data transfer and power delivery, simplifying your workspace setup. The ergonomic stand offers height and tilt adjustments, enabling you to customize the monitor’s position for optimal comfort. Its sleek, virtually borderless design adds a modern touch to any workspace. In summary, the LG UltraWide 34″ 60Hz Curved Monitor combines high-resolution visuals, color accuracy, and ergonomic design, making it a versatile choice for professionals and enthusiasts. Specifications: Display : 34″ IPS Resolution : 3440 x 1440 QHD Refresh Rate : 60Hz Response Rate : 5ms GTG Curvature : 3800R
product name : LG UltraGear 32″ Shipping Dimensions (WxHxD) 31.2″ x 8.9″ x 21.9″ Shipping Weight 22.3 lbs With Stand (WxHxD) 28.1″ x 23.6″ x 11.5″ (UP) 28.1″ x 19.3″ x 11.5″(Down) With Stand Weight 15.9 lbs Without Stand (WxHxD) 28.1″ x 16.9″ x 2″ Without Stand Weight 10.6 lbs iNPUT/OUTPUT DisplayPort Yes HDMI Yes Headphone Out Yes USB Down-stream Yes USB Up-stream Yes PICTURE QUALITY Aspect Ratio 16:9 Brightness 280cd (Min)/350cd (Typ) Color Depth (Number of Colors) 107 Color Gamut (Typ.) DCI-P3 98% (CIE1976) Contrast Ratio 700:1 (Min.), 1000:1 (Typ.) Display Type IPS Pixel Pitch (mm) 0.2724 x 0.2724 mm Refresh Rate 165hz (o/c 180hz) Resolution 2560 x 1440 Response Time (GTG) 1ms (GtG at Faster) Screen Size 32″ Surface Treatment Anti-Glare Viewing Angle 178˚(R/L), 178˚(U/D) POWER DC Off (Max) <0.3W Input 100-240 Vac, 50/60 Hz LG UltraGear 32″ Power Consumption (Max.) 65 W Power Consumption (Typ.) 48 W Power Save/Sleep Mode (Max) Less than 0.5W Type Adapter SOUND Speaker Yes LG UltraGear 32″ SPECIAL FEATURES Adaptive Sync AMD FreeSync™ Premium Auto Input Switch Yes Black Stabilizer® Yes Color Calibrated Yes Crosshair® Yes LG UltraGear 32″ Dynamic Action Sync® Yes Flicker Safe Yes FPS Counter Yes FreeSync (Low Frame Compensation) Yes HDR (High Dynamic Range) Yes HDR Effect Yes Motion Blur Reduction Technology Yes Nano IPS™ Technology Yes NVIDIA G-Sync™ Yes OnScreen Control (OSC) Yes Overclock Yes LG UltraGear 32″Reader Mode Yes Smart Energy Saving Yes User Define Key Yes Wide Color Gamut Yes STAND Display Position Adjustments Height, Pivot, Tilt Wall mount size (mm) 100 x 100 mm Specifications: 32″ FHD (1920 x 1080) Display 165Hz Refresh Rate An ultra-fast speed of 165Hz allows gamers to see the next frame quickly and makes image to appear smoothly. The gamers can respond quickly to opponents and aim at target easily.
LB-LINK BL-WN510BT – Compact USB Bluetooth 5.1 adapter with up to 20m range and support for multiple device types.Ideal for connecting headsets, gamepads, and more to PCs with strong, stable wireless performance. Model: LB-LINK BL-WN510BT Bluetooth Version: Bluetooth 5.1 (backward compatible with 5.0/4.2/4.0/3.0/2.0) Interface: USB 2.0 (Plug-and-Play) Operating Range: Up to 20 meters (unobstructed) Data Transfer Rate: Up to 3 Mbps Supported Profiles: A2DP, HSP, HFP, AVRCP, HID, PAN, FTP, SPP, etc. OS Compatibility: Windows 7 / 8 / 8.1 / 10 / 11 (Driver may be required for Win 7) Not natively compatible with macOS or Linux OS Compatibility: Windows 7 / 8 / 8.1 / 10 / 11 (Driver may be required for Win 7) Not natively compatible with macOS or Linux Functions: Enables PC or laptop Bluetooth connection with headsets, keyboards, mice, speakers, gamepads, printers, etc. Supports dual-mode Bluetooth (BR/EDR and LE) Functions: Enables PC or laptop Bluetooth connection with headsets, keyboards, mice, speakers, gamepads, printers, etc. Supports dual-mode Bluetooth (BR/EDR and LE) Power Consumption: Low Energy (LE) support for improved efficiency Security: Enhanced encryption and pairing features for secure connections Size: Ultra-compact nano design Weight: Less than 5g Plug & Play: Driver-free on Windows 10 and 11
CI03 CI03XL Battery for HP ProBook 640 G2 645 G2 650 G2 655 G2, ProBook 640 G3 645 G3 650 G3 655 G3 Laptop, P/N: HSTNN-UB6Q HSTNN-LB6T HSTNN-PB6K 801554-001 About this item 【BATTERY SPECIFICATIONS】 Type: Li-ion ‖ Capacity: 48Wh ‖ Voltage: 11.4V ‖ Model: CI03XL 【COMPATIBLE LAPTOP MODEL】For ProBook 640 G2, ProBook 640 G3, ProBook 645 G2, ProBook 645 G3, ProBook 650 G2, ProBook 650 G3, ProBook 655 G2, ProBook 655 G3 Notebook. 【PART NUMBER】CI03, CI03XL, C103XL, CIO3XL, CI03048XL, CIO3, HSTNN-UB6Q, HSTNN-LB6T, HSTNN-PB6K, HSTNN-UB6Q, HSTNN-DB7N, HSTNN-I66C-4, HSTNN-I66C-5U, HSTNN-I66C-5H, HSTNN-I67C-4, HSTNN-I67C-5, 801517-221, 801517-222, 801517-231, 801517-232, 801517-241, 801517-242, 801517-421, 801517-422,801517-541, 801517-831, 801554-001. 【MULTIPLE PRETCTION】 Don’t fall into buying cheap and unsafe batteries. All our batteries are certified by CE, and FCC for safety. Bulit-in circuit protection ensures both safety and stability.
OEM-quality trackpad replacement (without flex cable) for MacBook Air 13.3″ M1 (Model A2337, EMC 3598)—available in Space Gray, Gold, and Silver finishes—engineered for precise Force Touch response, smooth multi-touch gestures, and perfect color-matched integration. Compatible With: MacBook Air 13.3-inch (2020, Model A2337, EMC 3598) with Apple M1 chip. Part Type: Trackpad only—does not include the flex cable, Taptic Engine, or mounting brackets. Intended for professional technicians who will reuse or transfer the original internal components. Color Options: Space Gray – matches Space Gray and Midnight finishes Gold – matches Gold MacBook Air Silver – matches Silver and Starlight finishes Each variant is finished to OEM specifications for seamless visual continuity with the lower case. Space Gray – matches Space Gray and Midnight finishes Gold – matches Gold MacBook Air Silver – matches Silver and Starlight finishes Each variant is finished to OEM specifications for seamless visual continuity with the lower case. Force Touch Support: Fully compatible with pressure-sensitive input and haptic feedback when used with the original Taptic Engine and logic board—ensuring full macOS gesture functionality (e.g., Force Click, Look Up, pressure-sensitive drawing). Precision Engineering: Features the same smooth glass surface, curvature, and micro-click mechanism as Apple’s original—delivering consistent tracking accuracy and tactile feel. Installation Requirements: Requires complete bottom case disassembly and careful transfer of the original flex cable and Taptic Engine. Adhesive must be applied precisely to maintain structural integrity and sensor alignment. Recommended for certified or experienced repair technicians only. Important: This is a bare trackpad assembly—not a plug-and-play module. Functionality depends on correct integration with original electronics.
Introducing the Samsung ViewFinity S9 S90PC 27—a collection of monitors designed to redefine your visual experience and meet the demands of modern users. Embark on a journey of visual excellence with cutting-edge features that distinguish the Samsung Monitor Series. From vibrant displays to advanced technologies, these monitors ensure a superior and immersive viewing experience for users. Beneath their sleek and modern exteriors lies a commitment to seamless functionality. The Samsung Monitor Series is crafted to deliver not only stunning visuals but also user-friendly interfaces, making them an essential tool for both work and entertainment. Delve into the seamless integration of advanced technologies, ensuring these monitors adapt effortlessly to the evolving demands of modern content consumption. Whether you’re working on detailed tasks, streaming high-definition content, or gaming, the Samsung Monitor Series caters to diverse needs. Portability may not be the focus, but these monitors excel in providing flexible setups for various environments. With their slim profiles and versatile designs, the Samsung Monitor Series ensures your viewing experience remains top-tier. In conclusion, elevate your viewing experience with the Samsung ViewFinity S9 S90PC 27. Immerse yourself in cutting-edge features, vibrant displays, and sleek designs. Choose the Samsung Monitor Series for a monitor lineup that seamlessly blends advanced technology with visual brilliance. Specifications: Display : 27″ Resolution : 5120×2880 Response Time : 5ms Refresh Rate : 60Hz Part Number : LS27C902PAMXUE
The LG 27GX790A-B 27″ OLED QHD 480Hz gaming monitor delivers extreme speed and stunning image quality for competitive and professional gamers. Its 27-inch QHD OLED panel produces deep contrast, vibrant colors, and sharp detail, making every scene more immersive. Moreover, OLED technology provides fast pixel response for smooth visuals and minimal motion blur during high-speed gameplay. This monitor is built for esports performance thanks to its ultra-fast 480Hz refresh rate. Additionally, the QHD resolution balances clarity and performance, allowing gamers to enjoy sharp graphics while maintaining high frame rates. The sleek UltraGear design fits modern gaming setups and keeps desks organized while enhancing the overall gaming atmosphere. Connectivity options make it easy to connect PCs and gaming consoles. Furthermore, ergonomic stand adjustments help users maintain comfortable viewing positions during long gaming sessions. Therefore, this monitor suits competitive players and enthusiasts seeking top-tier performance. Finally, it combines OLED picture quality, ultra-fast refresh rate, and gaming-focused features for serious gameplay. Specifications: 27-inch QHD OLED gaming monitor Ultra-fast 480Hz refresh rate Deep contrast and vibrant OLED visuals Designed for competitive gaming setups Multiple connectivity options
