The Lenovo ThinkVision S27-4e 27″ 100Hz FHD Business Monitor is designed for work, study, and daily tasks. It offers a clean display with smooth motion for a comfortable viewing experience. This monitor is ideal for offices, home setups, and professional environments. With its 27-inch FHD panel, the Lenovo ThinkVision S27-4e 27″ 100Hz FHD Business Monitor delivers sharp and vibrant visuals. Text appears clear, and colors look natural. Therefore, it helps reduce eye strain during long hours of work. The 100Hz refresh rate makes movement on the screen smoother than standard 60Hz monitors. This is especially helpful for scrolling, video playback, and light gaming. As a result, your workflow feels more fluid and responsive. The Lenovo ThinkVision S27-4e 27″ 100Hz FHD Business Monitor also features slim bezels for a modern and clean look. This design allows for a more immersive view and makes it perfect for dual-monitor setups. Its adjustable tilt stand helps you find the right angle for better comfort. Additionally, the monitor uses energy-efficient technology to reduce power usage. This makes it a smart choice for businesses and home offices. Connectivity options include HDMI and VGA for easy pairing with laptops and desktops. You can connect it quickly without any extra adapters. This adds convenience and flexibility to your workspace. In conclusion, the Lenovo ThinkVision S27-4e 27″ 100Hz FHD Business Monitor offers smooth performance, clear visuals, and a professional design. It is a reliable display for productivity and everyday use. Specifications: Display : 27″ IPS Resolution : FHD Refresh Rate : 100Hz Response Time : 4ms GtG
The HP 32S 32″ Monitor delivers large, clear visuals for work, media, and everyday use.It features a 32‑inch Full HD screen that shows sharp images and smooth video.Moreover, the slim and modern design fits well on home and office desks. This monitor uses an LED panel for bright color and solid picture quality.Additionally, wide viewing angles help keep visuals consistent from different positions.Anti‑glare coating helps reduce reflections in bright rooms. The HP 32S also includes HDMI and VGA ports for flexible connectivity.Furthermore, tilt adjustment lets you find a comfortable viewing angle.Low blue light and flicker‑free features help reduce eye strain during long use. This display works well for students, professionals, and home users alike.Therefore, it supports productivity, browsing, streaming, and casual gaming.Finally, it combines solid performance, easy setup, and comfort features for everyday use. Specifications: 32″ Full HD (1920 × 1080) LED panel HDMI + VGA ports for PC and device connection Anti‑glare coating for comfortable viewing Tilt‑adjustable stand for ergonomic use Low blue light and flicker‑free eye care
The MSI MAG 32CQ6F 32″ 180Hz Curved Gaming Monitor delivers an immersive gaming experience. Its 32-inch curved display enhances your field of view, making games feel more engaging and realistic. With a 1500R curvature, it offers a comfortable viewing experience for extended gaming sessions. This monitor features a 180Hz refresh rate, providing ultra-smooth visuals. It reduces motion blur and screen tearing, ensuring a competitive edge in fast-paced games. Combined with a 1ms response time, you get lightning-fast reactions with no ghosting or lag. The MSI MAG 32CQ6F boasts a 2560×1440 (QHD) resolution, offering crisp and detailed visuals. Whether you’re gaming, streaming, or working, the high resolution provides stunning clarity. The VA panel technology ensures vibrant colors and deep contrasts for an immersive viewing experience. With support for AMD FreeSync Premium, the monitor synchronizes with your GPU to eliminate screen tearing and stuttering. This ensures smooth gameplay even during intense action scenes. The monitor also features multiple connectivity options, including HDMI and DisplayPort, making it compatible with various devices. The stylish and modern design of the MSI 32CQ6F complements any gaming setup. Its slim bezels and adjustable stand offer flexibility and comfort. Plus, the anti-flicker and low blue light technology help reduce eye strain, allowing for longer gaming sessions. Upgrade your gaming experience with the MSI MAG 32CQ6F 32″ 180Hz Curved Gaming Monitor, perfect for casual and competitive gamers alike. Specifications: Display : 31.5″ Rapid VA Resolution : 2560 x 1440 (WQHD) Curvature : 1500R Refresh Rate : 180Hz Response Rate : 0.5ms
240W USB-C Original Charge Cable (2m) (Second Hand) This 2-meter charge cable—with USB-C connectors on both ends—is ideal for charging, syncing, and transferring data between USB-C devices. Pair the USB-C Charge Cable with a compatible USB-C power adapter to conveniently charge your devices from a wall outlet and take advantage of fast-charging capabilities. USB-C Power Adapters sold separately. 240W USB-C Original Charge Cable (2m) (Second Hand) This 2-meter charge cable—with USB-C connectors on both ends—is ideal for charging, syncing, and transferring data between USB-C devices. Pair the USB-C Charge Cable with a compatible USB-C power adapter to conveniently charge your devices from a wall outlet and take advantage of fast-charging capabilities. USB-C Power Adapters sold separately. This 2-metre charging cable is made with a woven design — with USB-C connectors on both ends — and is ideal for charging, syncing and transferring data between USB-C devices. It supports charging of up to 240 watts and transfers data at USB 2 rates. Pair the USB-C Charge Cable with a compatible USB-C power adapter to conveniently charge your devices from a power point and take advantage of fast-charging capabilities. USB-C power adapters sold separately.
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:
AOC 27B36X 27-inch 144Hz monitor delivers smooth and responsive performance for gaming, work, and daily use. It focuses on fast refresh rate, clear Full HD visuals, and reliable IPS panel quality. Additionally, it features a 27-inch IPS panel with Full HD resolution (1920 × 1080). This panel provides accurate colors and wide viewing angles, so it ensures consistent image quality across different positions. Moreover, it supports a 144Hz refresh rate with 0.5ms MPRT response time. As a result, it delivers fluid motion and reduces blur during fast-paced scenes and gaming. The monitor includes Adaptive Sync technology. Therefore, it reduces screen tearing and stuttering for smoother and more stable performance. In addition, it supports HDR10. This enhances contrast and color depth, so visuals appear more vivid and detailed in supported content. Furthermore, it includes Low Blue Light and Flicker-Free technologies. So it helps reduce eye strain during long working or gaming sessions. The design features a slim frameless look with tilt adjustment and modern connectivity. It supports clean setups for both office and gaming environments. AOC 27B36X 27-inch 144Hz monitor provides a balanced combination of speed, clarity, and comfort for everyday productivity and smooth gaming. Specifications: 27-inch IPS panel with Full HD 1920 × 1080 resolution 144Hz refresh rate for smooth visual performance 0.5ms MPRT response time for reduced motion blur Adaptive Sync for tear-free and stable visuals HDR10 with Low Blue Light eye comfort features
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
The Samsung Odyssey Neo G9 57″ 240Hz Curved Gaming Monitor redefines the gaming experience. It features a massive 57-inch curved display with ultra-wide dual 4K resolution. Every detail appears sharp, bright, and incredibly lifelike. The 1000R curve wraps around your vision perfectly. It makes gameplay more immersive and natural for your eyes. You feel fully surrounded by the action every time you play. With a 240Hz refresh rate, motion stays ultra-smooth and responsive. Fast-paced scenes and intense battles run without lag or tearing. Gamers can react instantly and stay one step ahead. The Quantum Mini LED technology delivers outstanding contrast and brightness. Blacks are deeper, highlights are brighter, and colors stay true. HDR support ensures every game looks cinematic and vibrant. Connectivity is modern and versatile. It includes DisplayPort 2.1, HDMI 2.1, and USB ports for easy setup. You can connect multiple devices and switch effortlessly. The sleek design stands out in any setup. The adjustable stand allows height, tilt, and swivel control. RGB CoreSync lighting adds style that matches your gameplay. Multitasking is simple with Picture-by-Picture and Picture-in-Picture modes. You can game, stream, or work on one massive screen. It’s perfect for gamers and professionals alike. The Samsung Odyssey Neo G9 57″ 240Hz Curved Gaming Monitor combines power, style, and precision. It’s the ultimate choice for next-generation gaming and performance. Specifications: Display : 57″ VA Curvature : 1000R Resolution : Dual UHD (7,680 x 2,160) Refresh Rate : 240Hz Response Rate : 1ms GTG
The Samsung 75″ Neo QLED QN85F 4K Smart TV QA75QN85FAUXTW delivers a premium viewing experience with advanced Neo QLED display technology. It produces bright, detailed images with strong contrast and rich colors, so movies, sports, and games look sharp and immersive on the large 75-inch screen. Neo QLED technology uses Quantum Mini LEDs to improve brightness control and contrast precision. As a result, dark scenes appear deeper while bright areas stay vivid and accurate. This creates a more balanced and realistic picture across all types of content. Samsung integrates an AI-powered processor that enhances picture quality in real time. It analyzes each scene and automatically adjusts brightness, sharpness, and color. Therefore, the Samsung 75 Neo QLED QN85F 4K Smart TV QA75QN85FAUXTW consistently delivers optimized visuals without manual tuning. In addition, AI upscaling improves lower-resolution content closer to 4K quality for better clarity. HDR support increases brightness range and color depth, making visuals more dynamic and lifelike. Fast motion handling also improves clarity, which enhances sports and action scenes. The Smart TV platform provides easy access to streaming apps, gaming features, and smart home controls. It runs smoothly and responds quickly when switching between apps. In addition, the slim design with thin bezels gives the Samsung 75 Neo QLED QN85F 4K Smart TV QA75QN85FAUXTW a modern and premium appearance. Overall, this Samsung Neo QLED TV combines bright performance, AI optimization, and smart connectivity for a powerful home entertainment experience. Specifications: Neo QLED technology delivers bright, detailed, and accurate visuals 75-inch 4K display provides immersive large-screen viewing experience AI processor optimizes picture quality automatically in real time HDR improves contrast, brightness, and color depth Smart TV platform supports apps, streaming, and smart features
The MSI MAG 274QRFW E20 White Gaming Monitor is built for competitive gaming and immersive entertainment. It features a 27-inch Rapid IPS panel with WQHD (2560×1440) resolution, delivering sharp visuals, wide viewing angles, and accurate colors. In addition, the monitor offers a 200Hz refresh rate and an ultra-fast 0.5ms (GtG) response time. Therefore, it produces smooth gameplay with reduced motion blur in fast-paced games. Moreover, it supports NVIDIA G-SYNC Compatible and AMD FreeSync Premium technologies. As a result, gameplay stays fluid while minimizing screen tearing and stuttering. The DisplayHDR 400 certification also improves contrast and highlights for more lifelike visuals. The monitor includes DisplayPort 1.4a, dual HDMI 2.0b ports, and a headphone output for flexible connectivity. In addition, its ergonomic stand supports height, tilt, swivel, and pivot adjustments for comfortable viewing. Finally, the MSI MAG 274QRFW E20 combines high refresh rates, vibrant colors, and ergonomic flexibility, making it an excellent choice for competitive gamers and content creators. Specifications: Display: 27″ Rapid IPS WQHD (2560×1440) Refresh Rate: 200Hz with 0.5ms (GtG) response time HDR: VESA DisplayHDR 400 certified Sync Technology: NVIDIA G-SYNC Compatible & AMD FreeSync Premium Connectivity: DisplayPort 1.4a, 2× HDMI 2.0b, Headphone Out
Battery Model: A1582 A1502 Replacement Laptop Battery for MacBook Pro Retina 13 Inch Late 2013 Mid 2014 ; MacBook Pro A1493 A1582 Battery EMC 2678 2875 2835 ME864 ME865 Battery Model: A1582 A1502 Replacement Laptop Battery for MacBook Pro Retina 13 Inch Late 2013 Mid 2014 ; MacBook Pro A1493 A1582 Battery EMC 2678 2875 2835 ME864 ME865 100% Brand New, Battery Type: Li-Polymer; Capacity: 71.8Wh; Voltage:11.34V; Package include two free screwdriver Compatible:A1502 A1493 (Only for Late 2013, Mid 2014 Version) Apple MacBook Pro 13″ Retina ME864LL/A ME866LL/A ,MacBook Pro “Core i5″ 2.4/2.5 13” Late 2013 Retina Overcharger and Discharger Circuit Protection, CE-/FCC-/RoHS-Certified for safety.
AOC Screen 23.8″ VA Panel Model name 24B2XHM Panel 23.8″ (VA) Pixel Pitch (mm) 0.2745 (H) × 0.2745 (V) Effective Viewing Area (mm) 527.04 (H) × 296.46 (V) Brightness (typical) 250 cd/m² Contrast Ratio 3000 : 1 (Typical) 20 Million : 1 (DCR) Response Time 6ms (GtG (BW)) Viewing Angle 178° (H) / 178° (V) (CR > 10) Color Gamut NTSC 80% (CIE1976) / sRGB 101% (CIE1931) Color Accuracy – Optimum Resolution 1920 × 1080 @ 75Hz – HDMI 1920 × 1080 @ 60Hz – VGA Display Colors 16.7 Million Signal Input VGA × 1, HDMI 1.4 × 1 HDCP Version – USB Hub no Power Supply 19V DC, 1.31A Power Consumption (typical) 21W Speakers no Line in & Earphone – Wall-Mount 100mm × 100mm Adjustable Stand Tilt: -5° ~ 20° Product without Stand (mm) 320.94 (H) × 539.47 (W) × 37.6 (D) Product with Stand (mm) 418.35 (H) × 539.47 (W) × 170.94 (D) Product without Stand (kg) 2.41 Product with Stand (kg) 2.73 Cabinet Color Black Regulatory Approvals CE / FCC Specifications: AOC Screen 23.8″ VA Model name 24B2XHM Panel 23.8″ (VA) Pixel Pitch (mm) 0.2745 (H) × 0.2745 (V) Effective Viewing Area (mm) 527.04 (H) × 296.46 (V) 1 Year Warranty Manufacturer Link
Genuine-spec touchpad flex cable for MacBook Pro 15″ (Model A2941, 2023, Apple M2)—restores full Force Touch functionality, haptic feedback, and precise multi-touch gesture control during trackpad repair or replacement. Compatible With: MacBook Pro 15-inch (2023, Model A2941) with Apple M2 chip (Model Identifier: MacBookPro19,1) 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 internal components near the right speaker and logic board. Connects via a ZIF (Zero Insertion Force) socket—must be aligned carefully and latched gently. Recommended for experienced or certified technicians only. Requires full bottom case removal and battery disconnection. Cable routes under internal components near the right speaker and logic board. Connects via a ZIF (Zero Insertion Force) socket—must be aligned carefully and latched gently. Recommended for experienced or certified technicians only.
Are you in the market for a reliable monitor that won’t break the bank? Look no further than the ViewSonic VX2719-PC-MHD. In this comprehensive guide, we’ll delve into the key features and advantages of this budget-friendly monitor. The ViewSonic VX2719-PC-MHD offers a stunning 27-inch display, making it perfect for work or play. Its size allows you to enjoy a more immersive visual experience, whether you’re working on a project or streaming your favorite movies. One of the key benefits of this monitor is its Full HD resolution, which ensures that your content appears sharp and clear. Whether you’re editing photos, watching videos, or browsing the web, you’ll appreciate the vivid visuals this monitor delivers. Furthermore, the ViewSonic VX2719-PC-MHD boasts a rapid response time, reducing motion blur during fast-paced games or action-packed movie scenes. This makes it an ideal choice for both gamers and casual users. Connectivity is a breeze with this monitor, thanks to its HDMI and VGA inputs. You can effortlessly connect it to your computer, gaming console, or other devices without any hassle. In terms of setup, the ViewSonic VX2719-PC-MHD is designed with user-friendliness in mind. It comes with an easy-to-follow manual, and the on-screen menu is straightforward, allowing you to customize your display settings without any confusion. 3 years warranty MANUFACTURERS LINK YOU CAN ALSO CHECK HERE Specifications: 240Hz refresh rate for smooth gameplay 1ms (MPRT) response time for precision 1500R Curved screen for immersive visuals AMD FreeSync Premium prevents screen tearing Full HD resolution for rich detail VX2719-PC-MHD
Introducing the Samsung Odyssey G5 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 Odyssey G5 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″ IPS Resolution : 2560×1440 Response Time : 1ms Refresh Rate : 165Mhz Part Number : LS27AG500PMXZN
The MSI Pro MP225 21.5″ 100Hz Business Monitor is designed for professionals who need a reliable and efficient display. It offers clear visuals, smooth performance, and a sleek design for any workspace. Firstly with a 21.5-inch Full HD display, this monitor delivers sharp images and vibrant colors. The 100Hz refresh rate ensures smoother motion, reducing screen tearing and lag. This makes it ideal for office tasks, browsing, and even light gaming. Furthermore the MSI Pro MP225 Business Monitor features anti-flicker and blue light reduction technology. This reduces eye strain, making it comfortable for long hours of work. Whether you’re working on spreadsheets, writing reports, or attending video meetings, your eyes stay protected. Designed for seamless multitasking, this business monitor supports wide viewing angles for better screen visibility. The narrow bezel design maximizes screen space, making it great for multi-monitor setups. Connectivity is simple with HDMI and VGA ports, ensuring compatibility with various devices. You can easily connect it to laptops, desktops, and other peripherals. The easy-to-use on-screen display controls let you adjust brightness, contrast, and color settings effortlessly. The MSI Pro MP225 21.5″ Business Monitor is built with energy efficiency in mind. It consumes less power while maintaining excellent performance, making it an eco-friendly choice. The tilt-adjustable stand allows you to set the perfect viewing angle for comfort. It also supports VESA mounting, so you can save desk space by attaching it to a monitor arm or wall mount. For professionals looking for a budget-friendly, high-performance monitor, the MSI Pro MP225 21.5″ 100Hz Business Monitor is a top choice. It combines clarity, comfort, and functionality to enhance productivity at work. Specifications: Display : 21.5″ IPS Resolution : 1920×1080 FHD Refresh Rate : 100Hz Response Rate : 1ms
The Samsung 27″ G60SD QHD OLED Gaming Monitor delivers ultra-fast performance and stunning visuals. First, it features a QHD OLED panel with deep blacks and vibrant colors. The monitor offers a 360Hz refresh rate and ultra-low response time for smooth gameplay. In addition, it supports high performance gaming with sharp details and fluid motion. Moreover, the ergonomic design allows height and tilt adjustments for comfort. Therefore, gamers can enjoy competitive play with fast response, clear visuals, and immersive performance. Specifications: 27″ QHD OLED panel delivers deep blacks and vibrant colors 360Hz refresh rate ensures ultra-smooth and responsive gameplay Ultra-low response time reduces motion blur in fast-paced games Ergonomic design with height and tilt adjustment for comfort High-performance display enhances competitive gaming experience
BenQ Board Essential Series 65 inch RE6504FV is designed for classrooms, meeting rooms, and interactive collaboration. It features a 65-inch 4K UHD IPS display with precision IR touch technology for smooth writing and presentations. Additionally, it supports up to 40 touch points. Therefore, it helps teams and teachers work together more efficiently. The BenQ RE6504FV delivers 3840 × 2160 resolution with 450 nits brightness and anti-glare coating for clear viewing in bright rooms. Moreover, it uses 9H tempered glass for better durability and safer daily use. It also includes low blue light and flicker-free technology to reduce eye strain. In addition, it runs on Android 14 with 8GB memory and 128GB storage depending on region for smooth system performance. Furthermore, it provides 3 HDMI 2.0 ports, DisplayPort, USB-A, USB-C with 65W PD, and USB-B for flexible connectivity. As a result, users can connect laptops, cameras, and classroom devices easily. It also includes an 8-microphone array, built-in camera, and 2 × 20W speakers for daily educational and business use. Specifications: 65-inch 4K UHD (3840 × 2160) IPS display Precision IR touch with up to 40 touch points Android 14 with 8GB RAM and 128GB storage 450 nits brightness with anti-glare 9H tempered glass USB-C 65W PD, 8-mic array, camera, and dual 20W speakers
lenovo battery L18C3PF2 Laptop Battery Compatible with Lenovo Ideapad L3-15IML05 L340-15API L340-15IWL L340-17API L340-17IWL L340-15API/L340-15IWL Touch Series 5B10T03401 L18M3PF2 L18L3PF1 L18D3PF1 11.25V 36Wh About this item 【Battery type】Li-ion. Voltage: 11.25V. Capacity: 36Wh 3320mAh . 【Compatible Part Number】L18C3PF2 5B10T03401 5B10W67302 L18M3PF2 5B10T03402 5B10W67367 5B10T03404 L18D3PF1 5B10W67278 5B10T03400 L18L3PF1 5B10W67198 5B10T03403 . 【Replacement For Laptop】Lenovo V155-15API V340-17IWL, IdeaPad L3-15IML05, Ideapad L340-15API L340-15IWL L340-17API L340-17IWL L340-15IWL Touch L340-15API Touch Series Notebook. 【Connector】Before placing your order, Please refer to the picture and check it. Because the products produced by different factories will have differences in size, cable length, interface, etc.
