This replacement touchpad for MacBook Air A2179 comes in Rose Gold and is sold without the flex cable. Perfect for restoring smooth trackpad performance, it’s ideal for repair technicians and users replacing a damaged or non-working touchpad. The MacBook Air A2179 Touchpad (Rose Gold) is a high-quality replacement part designed to restore full trackpad functionality to your laptop. Whether your original touchpad is unresponsive, physically damaged, or experiencing tracking issues, this replacement provides a reliable solution. Please note that this unit is without the flex cable, meaning it requires the original flex or a separate replacement flex for installation. Ideal for repair shops and technicians, it ensures smooth navigation and precise control. Compatible with MacBook Air A2179 Rose Gold Color Match for original look and finish Replacement Touchpad Only (without flex cable) Restores Smooth Trackpad Functionality Precision Tracking & Gesture Support (when installed correctly) Ideal for Repairs & Replacements High-Quality Build designed for durability and long use Designed specifically for Apple MacBook Air A2179 models. Recommended for technicians and repair shops or users replacing a faulty touchpad. Ensure compatibility before purchase and note that a flex cable is required for installation.
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
The MSI G27C3F 27″ is a curved gaming monitor designed to give you smooth and immersive gameplay. It features a 27-inch curved screen that pulls you into the action. With a 165Hz refresh rate, the MSI G27C3F delivers fast and fluid visuals. Moreover, the 1ms response time ensures every movement looks sharp without any motion blur. This makes the MSI G27C3F perfect for fast-paced games. In addition, it uses VA panel technology for deeper blacks and vivid colors. Thanks to its Full HD resolution, games and videos appear clear and detailed. Plus, the MSI G27C3F includes anti-flicker and blue light reduction features. These help reduce eye strain during long gaming or work sessions. Setting up the MSI G27C3F 27″ is quick and simple with its user-friendly design. It also supports tilt adjustment for better viewing comfort. Furthermore, the monitor’s sleek and modern look fits perfectly into any gaming setup. For competitive gamers, the MSI G27C3F offers a real edge with its smooth performance and sharp visuals. Also, it supports AMD FreeSync technology to prevent screen tearing. This keeps your gameplay clean and uninterrupted. Besides gaming, the MSI G27C3F is great for movies, streaming, and everyday use. You can also connect it easily to your PC, laptop, or console. Its ports offer flexible options for all your needs. In short, the MSI G27C3F 27″ is a smart pick for anyone who wants a fast, stylish, and reliable gaming monitor. Choose the MSI G27C3F for better speed, clarity, and comfort in every session. Specifications: Display : 27″ Resolution : 1920 x 1080 FHD Refresh Rate : 180Hz Response Time : 1ms GTG
The MSI Pro MP253 24.5″ 100Hz Business Monitor is designed for professionals seeking smooth performance and high efficiency. It delivers a crisp Full HD display for sharp visuals and clear text. With a 100Hz refresh rate, this business monitor provides fluid motion and reduces screen tearing. Scrolling through documents and web pages feels smoother, improving your workflow. The fast response time ensures minimal motion blur for a better viewing experience. The MSI Pro MP253 24.5″ 100Hz Business Monitor features a sleek and modern design. Its ultra-slim bezels maximize screen space, making it ideal for multi-monitor setups. The stand is sturdy and adjustable, ensuring comfortable viewing angles. This business monitor comes with anti-flicker and low blue light technology. It reduces eye strain, making it perfect for long working hours. The comfortable viewing experience enhances focus and productivity. Connectivity options include HDMI and DisplayPort, allowing easy connection to various devices. Whether using a laptop, desktop, or docking station, this MSI business monitor ensures seamless compatibility. The MSI Pro MP253 24.5″ 100Hz Business Monitor offers vibrant colors and excellent contrast. The IPS panel provides wide viewing angles, ensuring clear visuals from any position. With energy-efficient performance, this business monitor consumes less power without compromising quality. It is an eco-friendly choice for offices and home workspaces. For professionals needing a reliable display, the MSI Pro MP253 24.5″ 100Hz Business Monitor is a great choice. It offers smooth visuals, eye-care features, and a stylish design to enhance productivity. Specifications: Display : 24.5″ IPS Resolution : 1920×1080 FHD Refresh Rate : 100Hz Response Rate : 1ms Speaker : 3W x2
The Samsung 43-Inch Full HD Smart TV UA43F6000FUXTW uses a 43-inch LCD panel with 1920 × 1080 resolution. It delivers standard Full HD picture quality for everyday TV viewing, streaming, and basic entertainment use. The display supports Full HD resolution, which shows clear and detailed images for HD content. In addition, Samsung picture processing improves lower-resolution sources to reduce noise and enhance clarity on the screen. The TV runs a native 60 Hz refresh rate. Also, motion processing helps reduce blur in fast-moving scenes such as sports and action content. Samsung equips this model with a Smart TV platform based on Tizen OS. Therefore, users can access streaming apps, online content, and basic smart features through a simple interface. Connectivity includes HDMI ports, USB ports, Wi-Fi, Bluetooth, Ethernet LAN, and optical audio output. In addition, the TV supports external devices such as game consoles, set-top boxes, and sound systems. This model focuses on Full HD resolution, essential smart TV functions, and basic connectivity without 4K resolution or advanced display processing features. Specifications: 43-inch LCD panel with 1920 × 1080 Full HD resolution 60 Hz native refresh rate display Tizen OS smart platform with streaming apps HDMI, USB, Wi-Fi, Bluetooth, Ethernet connectivity Supports external devices like consoles and media players
New A1989 A1990 Keyboard US Standard Replacement for MacBook Pro 13'' 15''A1990 A1989 Keyboard 2018/2019 Year New A1989 A1990 Keyboard US Standard Replacement for MacBook Pro 13” 15”A1990 A1989 Keyboard 2018/2019 Year New A1989 A1990 Keyboard US Standard Replacement for MacBook Pro 13” 15”A1990 A1989 Keyboard 2018/2019 Year We have Perfect after-sales services We share the latest information on laptop spare parts For all our customers. This is NOT an easy job for someone who has no technical skills with Disassembling or Assembling a laptop, So only purchase this item if you know how to install it. Each Keyboard is tested before shipping and working.
Genuine-spec keyboard replacement for MacBook Pro 13″ (Model A2251, 2020) — choose US QWERTY or UK QWERTY (with £ symbol). Features Apple’s reliable Magic Keyboard with scissor-switch mechanism, backlighting, and precise OEM fit. Compatible With: MacBook Pro 13-inch (2020, Two Thunderbolt Ports, Model A2251, Model Identifier MacBookPro16,1) with Intel Core i5/i7 processors. Layout Options (select at purchase): US Layout: Standard QWERTY with wide Enter key, @ above 2, # above 3, and full function row. UK Layout: QWERTY with £ symbol, tall vertical Enter key, @ accessed via right Alt, and UK-specific punctuation. US Layout: Standard QWERTY with wide Enter key, @ above 2, # above 3, and full function row. UK Layout: QWERTY with £ symbol, tall vertical Enter key, @ accessed via right Alt, and UK-specific punctuation. Keyboard Type: Apple’s Magic Keyboard with scissor-switch mechanism—offering improved durability, quieter typing, and 1mm key travel compared to Butterfly keyboards. Integrated Features: Full backlit keys for low-light environments Ambient light sensor support OEM-style flex cable pre-attached for direct connection to the logic board Full backlit keys for low-light environments Ambient light sensor support OEM-style flex cable pre-attached for direct connection to the logic board Precision Build: Engineered to match Apple’s exact dimensions, key spacing, and top-case curvature—ensures seamless visual and functional integration. Installation Note: The keyboard is factory-glued into the top case. Replacement requires full disassembly, careful adhesive removal, and professional re-adhesion. Recommended for experienced or certified repair technicians only.
The Moxom MX-ST05 Safety Power Strip combines 4 AC outlets with 8 USB charging ports (6×USB-A + 2×USB-C). It supports up to 2500W / 10A total load and delivers 17W USB fast charging, making it a compact all-in-one power and charging hub for home or office use. ⚡ 12-in-1 Power Hub: 4 AC sockets plus 8 USB ports let you power and charge many devices at once. 🔌 High Power Capacity: Handles up to 10A / 2500W total output for laptops, monitors, chargers, and appliances. 🔋 USB Fast Charging: 6×USB-A + 2×USB-C deliver up to 5V/3.4A (17W max total) for phones, tablets, earbuds, and accessories. 🛡️ Safety Protection: Built-in protection against over-voltage, over-current, overheating, and foreign-object detection. ⏻ Main Power Switch: One-touch on/off button to cut power safely to all connected devices. 🧊 Durable Build: Made from ABS + PC materials for heat resistance and long-term durability. 📏 Long Cable: Comes with about 1.8–2.0m cord for flexible placement.
The ViewSonic VA2763-H 27″ FHD 100Hz Monitor delivers clear images with strong detail. Its Full HD resolution makes movies, games, and work look sharp. The large 27-inch screen gives you more space to enjoy your content. This helps you stay productive and focused. Moreover, the ViewSonic VA2763-H 27″ FHD 100Hz Monitor features a smooth 100Hz refresh rate. Motion looks cleaner and faster on the screen. This makes gaming and scrolling feel more responsive. It also reduces blur during fast scenes. In addition, the monitor uses an advanced panel for rich colors. The colors remain accurate from different viewing angles. This makes photos, videos, and documents look consistent. It is great for students, creators, and office users. Furthermore, the ViewSonic VA2763-H 27″ FHD 100Hz Monitor includes eye-care features for long hours of use. Flicker-Free technology protects your eyes from strain. The blue light filter adds extra comfort during work or study. This helps you stay relaxed throughout the day. Also, the monitor has HDMI and VGA ports for simple connection. You can connect laptops, desktops, and gaming consoles easily. The setup process is fast and user-friendly. This makes the monitor suitable for home and office spaces. The design of the ViewSonic VA2763-H 27″ FHD 100Hz Monitor looks clean and modern. The slim frame gives your workspace a sleek look. It fits well on desks of all sizes. The build quality is strong and durable. Overall, the ViewSonic VA2763-H 27″ FHD 100Hz Monitor offers smooth performance, clear visuals, and eye-care comfort. It improves your work, study, and gaming experience. This monitor is ideal for anyone who wants quality and simplicity. Specifications: Display : 27″ IPS Resolution : 1920×1080 Refresh Rate : 100Hz Response Time : 1ms
The ViewSonic XG2709A 27″ 240Hz Gaming Monitor is built for competitive gamers who need top-tier performance and responsiveness. With a blazing 240Hz refresh rate, it delivers ultra-smooth visuals in every frame. A 1ms MPRT response time ensures fast and accurate performance, helping reduce motion blur and ghosting during intense action. The Full HD resolution brings sharp details, making it perfect for gaming and daily use. Its SuperClear® IPS panel offers wide viewing angles and rich, vibrant colors. This means no matter where you sit, your screen will always look great. The ViewSonic XG2709A 27″ 240Hz Gaming Monitor features AMD FreeSync™ technology, which eliminates screen tearing and stuttering for smooth, uninterrupted gameplay. HDR10 support brings better brightness and contrast to your visuals, making dark scenes deeper and bright scenes more vivid and clear. It gives games and videos more depth and realism. Multiple input options like HDMI and DisplayPort let you connect to PCs, gaming consoles, and other devices with ease. A 3.5mm audio out port is also available for external speakers or headphones. The stand is fully adjustable, offering tilt, swivel, height, and pivot functions to keep you comfortable. It’s also VESA compatible for wall or arm mounting. Its anti-glare screen reduces reflections, making long gaming sessions easier on your eyes. The sleek, modern design fits into any setup with ease. In conclusion, the ViewSonic XG2709A 27″ 240Hz Gaming Monitor offers speed, comfort, and vibrant visuals, making it a top choice for serious gamers. Specifications: Display : 27″ IPS Resolution : 1920 x 1080 FHD Refresh Rate : 240Hz Response Rate : 1ms MPRT Height Adjust (mm): 130
The Apple Magic Mouse (USB-C version) is a sleek, minimalist multi-touch wireless mouse built for Mac users. It offers smooth gesture support, Bluetooth connectivity and a built-in rechargeable battery — a great choice if you prefer a clean desk setup and full compatibility with macOS and iPadOS. General Name: Magic Mouse (USB-C) — part of Apple’s pointing-device lineup. Wireless connectivity: Bluetooth. Rechargeable battery: built-in, no disposable AA cells. Charging / port: USB-C port (bottom of mouse) for pairing and charging. Compatibility: Requires a Mac with macOS 15.1 or later, or an iPad with iPadOS 18.1 or later. Size & Weight Height: ~0.85 inch (2.16 cm) Width: ~2.25 inch (5.71 cm) Depth: ~4.47 inch (11.35 cm) Weight: ~0.22 pound (0.099 kg) (varies slightly by manufacturing) Features Multi-Touch surface: supports gestures such as swiping between pages, scrolling through documents, zooming. Glide / foot design: optimized for smooth movement across desktop surfaces. Rechargeable battery life: about a month or more between charges (typical use) per Apple spec. Used Condition ConsiderationsSince you’re specifying a used unit: Check for wear on the bottom feet / skates — these degrade and affect glide. Verify battery capacity / health (rechargeable batteries age). Confirm the port is functioning (USB-C) and Bluetooth connectivity is stable. Look for signs of excessive surface scratches on the multi-touch top — may impair gestures. Ensure the firmware / Mac recognizes it fully (gestures working). Upgradability / Limitations Not user-upgradable: You cannot replace the internal battery or change internals easily. Design limitation: The USB-C port remains on the bottom of the mouse, meaning you cannot use it while charging unless you flip it. This design is still criticized. Ergonomics: The flat, low-profile design is stylish but may not suit extended-use comfort for some users.
The BYL-2207 2-in-1 LAN adapter provides fast and stable wired internet through a Gigabit Ethernet port using either USB-C or USB 3.0. Perfect for laptops, MacBooks, and PCs without an Ethernet port, it ensures smooth streaming, online meetings, and reliable network performance. The BYL-2207 2-in-1 Type-C / USB 3.0 to Gigabit LAN Adapter is designed for users who need a reliable wired connection on modern laptops and devices. It supports both USB-C and USB 3.0, making it compatible with a wide range of systems including MacBooks, ultrabooks, and desktops. With Gigabit Ethernet speed, it provides faster and more stable internet compared to Wi-Fi, making it ideal for work, gaming, and streaming. 2-in-1 Connector (USB-C + USB 3.0) for wide compatibility Gigabit Ethernet Port (RJ45) for fast and stable wired internet High-Speed Performance supports up to 1000Mbps network speed Plug & Play installation on most systems Compact & Portable Design easy to carry anywhere Ideal for Work & Streaming improves stability for meetings and downloads Reliable Connection reduces lag compared to Wi-Fi Ideal for MacBooks, laptops, ultrabooks, desktops, and tablets that need a stable wired internet connection. Perfect for online meetings, remote work, gaming, IPTV, streaming, and downloading.
HP Gk400F Mechanical USB Gaming Keyboard, Dust & Spill Resistant, RGB Backlit Keys, Metal Panel, Full-Sized Keyboard Design About this item [Quick. Comfy. Accurate] Comfortable and Durable full-sized keyboard designed. [Plug-in and type] Get to typing quicker with the USB plug-and-play setup that’ll have you connecting to your PC faster and easier than ever [Dust-proof & splash-proof] Mechanical metal panel, dust and spill. Resistant. [All-day comfort] This keyboard is designed for optimal comfort to fit your natural position, keeping your wrist feeling good all day. [Let there be LED] Lightsync RGB Backlit Keys and auto sleep mode support.Brilliant RGB Color Spectrum illumination.
LG 27U411A-B is a 27-inch Full HD monitor designed for work, entertainment, and everyday gaming. Additionally, it features an IPS panel that delivers accurate colors and wide viewing angles for comfortable daily use. Moreover, the monitor supports a 120Hz refresh rate for smoother motion during gaming and scrolling. Therefore, users can enjoy more fluid visuals with reduced motion blur in fast-moving scenes. In addition, HDR10 support and sRGB 99% color coverage improve brightness and color accuracy. As a result, movies, games, and creative content appear more vivid and detailed. Furthermore, LG includes gaming features such as Dynamic Action Sync, Black Stabilizer, and 1ms Motion Blur Reduction. Likewise, Reader Mode and Flicker Safe technology help reduce eye strain during long sessions. The slim stand and 3-side borderless design create a clean modern setup. Additionally, the monitor supports tilt adjustment and VESA wall mounting for flexible placement options. Finally, LG 27U411A-B combines smooth 120Hz performance, IPS color quality, and modern styling in a versatile 27-inch monitor for gaming and productivity. Manufacturer link Specifications: 27-inch Full HD IPS display 120Hz refresh rate support HDR10 and sRGB 99% color coverage 1ms Motion Blur Reduction technology Slim stand with borderless design
GAMDIAS 7 Colour Backlit Gaming USB Mechanical Keyboard with 87 Keys, Blue Switches, Anti-ghosting, Multimedia Control Key with Metal Plate, Combo (Multicolour, Hermes E2) About this item Certified mechanical blue switches feature a 50 Million actuation lifecycle Neon Light Spectrum- 7 colors backlight Elegant metal plate mechanical keyboard for added durability N-key rollover Compact 87 Keys Keyboard : By using small tenkeyless keyboard can save the space, and also makes the keyboard and mouse to become closer, so you can maximize the comfort and accuracy of your operation
Led Desk Lamp REMAX RT-E815 ReSee Series Smart Eye-Caring 1500mAh RT-E815 With Container · Eye-caring lightning · Large-area lighting · 1500mAh · Delayed light-off · Soft lighting · Stepless dimming · Pen/phone holder · With rechargeable battery · Plug and use · A soft hose of 360-degree adjustment.
Upgrade your entertainment setup with the ViewSonic VX2458-P-MHD monitor, designed to take your viewing experience to new heights. Featuring a 24” display, this monitor offers crystal-clear visuals that immerse you in every scene. With a blazing-fast 144Hz refresh rate, this monitor ensures smooth, fluid motion in all your favorite content. Say goodbye to motion blur and hello to a seamless viewing experience that keeps up with the action. Transitioning to responsiveness, the VX2458-P-MHD boasts an impressive 1ms response time, minimizing input lag for ultra-responsive gaming and multimedia performance. Enjoy instantaneous reactions to your commands, whether you’re gaming or watching movies. Furthermore, the monitor’s Full HD resolution delivers crisp, detailed images that bring your entertainment to life. From vibrant colors to sharp contrasts, every scene pops with stunning clarity and realism. Moreover, with AMD FreeSync technology, screen tearing and stuttering are virtually eliminated, ensuring silky-smooth gameplay and seamless video playback. Immerse yourself in your favorite games and movies without distractions. In addition, the monitor’s versatile connectivity options, including HDMI and DisplayPort, make it easy to connect to a variety of devices, from gaming consoles to PCs and laptops. In conclusion, the ViewSonic VX2458-P-MHD monitor is the ultimate choice for immersive entertainment experiences. With its high refresh rate, swift response time, and vibrant visuals, it’s the perfect companion for gaming, movies, and more. Upgrade your viewing experience today and enter a world of endless entertainment possibilities. Specifications: Display : 24″ TN Resolution : FHD (1920×1080) Refresh Rate : 144Hz Response Rate : 1ms GTG
The ViewSonic 27″ 75Hz Monitor delivers vibrant visuals and smooth performance for all your computing needs. Whether you’re working, gaming, or streaming, this monitor provides an immersive viewing experience. With a Full HD 1080p resolution, the ViewSonic 27″ 75Hz Monitor offers crisp and clear images. Every detail is sharp and vivid, making it perfect for tasks that require high visual clarity. The 75Hz refresh rate ensures smooth and fluid motion on the ViewSonic 27″ Monitor. This is especially beneficial for gaming and watching videos, as it reduces blur and enhances the overall viewing experience. Designed with versatility in mind, the ViewSonic 27″ 75Hz Monitor features multiple connectivity options. It includes HDMI, VGA, and DisplayPort inputs, allowing you to connect various devices effortlessly. The slim bezel design of the ViewSonic 27″ 75Hz Monitor maximizes screen space and provides a sleek, modern look. It fits seamlessly into any workspace or home setup, adding a touch of elegance to your environment. The ViewSonic 27″ 75Hz Monitor is also equipped with eye care technology to reduce eye strain during extended use. Features like Flicker-Free and Blue Light Filter make it comfortable for long hours of work or play. Setting up the ViewSonic 27″ 75Hz Monitor is easy and hassle-free. The adjustable stand allows you to find the perfect viewing angle, ensuring comfort and productivity throughout the day. In conclusion, the ViewSonic 27″ 75Hz Monitor combines stunning visuals, smooth performance, and versatile connectivity for an exceptional viewing experience. Upgrade to the ViewSonic 27″ 75Hz Monitor today and enjoy the best in display technology. Specifications: Display : 27″ TN Resolution : FHD 1920 x 1080 Refresh Rate : 75Hz Response Rate : 1.5ms GTG
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
Brand Crucial Computer Memory Size 8 GB RAM Memory Technology DDR4 Memory Speed 2666 MHz Compatible Devices Laptop, PC Improve your system's responsiveness, run apps faster and multitask with ease Install with ease; no computer skills required How-to guides available at Crucial Compatibility assurance when using the Crucial System Scanner or Crucial Advisor Tool Micron quality and reliability is backed by superior component and module level testing and 42 years of memory expertise ECC Type = Non-ECC, Form Factor = SODIMM, Pin Count = 260-pin, PC Speed = PC4-21300, Voltage = 1.2V, Rank and Configuration = 1Rx16, 1Rx8 or 2Rx8 Brand Crucial Computer Memory Size 8 GB RAM Memory Technology DDR4 Memory Speed 2666 MHz Compatible Devices Laptop, PC Improve your system’s responsiveness, run apps faster and multitask with ease Install with ease; no computer skills required How-to guides available at Crucial Compatibility assurance when using the Crucial System Scanner or Crucial Advisor Tool Micron quality and reliability is backed by superior component and module level testing and 42 years of memory expertise ECC Type = Non-ECC, Form Factor = SODIMM, Pin Count = 260-pin, PC Speed = PC4-21300, Voltage = 1.2V, Rank and Configuration = 1Rx16, 1Rx8 or 2Rx8
