The HP P24H G5 24” 75Hz FHD Monitor is a modern display designed for everyday work, entertainment, and productivity. It combines clear visuals, smooth motion, and simple usability in a sleek design. First, this monitor features a 23.8-inch Full HD (1920 × 1080) IPS panel for bright colors and wide viewing angles. As a result, text and images stay sharp for work, videos, and browsing. In addition, the HP P24H G5 24” 75Hz FHD Monitor supports a 75 Hz refresh rate, giving smoother motion for videos and casual gaming. Therefore, motion looks more fluid than on basic 60 Hz screens. This display uses wide 178°/178° viewing angles and anti-glare treatment to help reduce reflections and maintain clarity from many positions. This makes it easier to share content with others. The panel also delivers a typical brightness of 250 nits and a contrast ratio of 1000:1, so whites and blacks stay balanced for clear content. Thus, your work and entertainment stay easy to see. The HP P24H G5 includes built-in dual 2 W speakers for basic audio without extra accessories. This helps when you watch videos or join online meetings. Connectivity options include HDMI 1.4, DisplayPort 1.2, and VGA, so you can connect laptops and desktops easily. This makes setup quick with many devices. The stand supports height adjustment and tilt to help you find a comfortable viewing position for long sessions. Also, it has a 3-sided micro-edge bezel for a modern look and cleaner multi-monitor setups. This monitor is also flicker-free with low blue light mode, helping reduce eye strain during extended use. This makes it suitable for office work and daily use. In conclusion, the HP P24H G5 24” 75Hz FHD Monitor offers clear display, smooth visuals, and flexible connectivity for work and play. Overall, it is a strong choice for home, office, and small business setups. Specifications: Display : 23.8″ IPS Resolution : FHD (1920 x 1080) Refresh Rate : 75 Hz Response Rate : 5ms GtG
The Samsung 55″ QLED Q6F 4K Smart TV QA55Q6FAAUXTW delivers vibrant picture quality and smart entertainment features in a sleek and modern design. It uses advanced QLED technology to produce bright colors, sharp details, and impressive clarity, making movies, sports, and games more enjoyable on the 55-inch screen. QLED technology uses Quantum Dot enhancement to improve color accuracy and brightness. As a result, images appear vivid and lifelike across a wide variety of content. Dark scenes retain important details, while bright scenes remain balanced and clear. This creates a more consistent viewing experience in different lighting conditions. The 4K UHD resolution provides exceptional image detail and clarity. Therefore, content looks sharper and more refined than standard Full HD. In addition, Samsung image processing enhances lower-resolution content, helping it appear closer to native 4K quality. HDR support improves contrast and expands the visible color range. This allows brighter highlights and deeper shadows, creating more realistic images. Fast-moving scenes also appear smoother and clearer, making sports broadcasts and action-packed content more enjoyable. The Smart TV platform provides access to popular streaming services, apps, and connected home features. It offers a responsive interface that makes navigation simple and convenient. In addition, the slim design and narrow bezels give the Samsung QLED 55 Q6F 4K Smart TV QA55Q6FAAUXTW a modern appearance that fits well in bedrooms, living rooms, and entertainment areas. Overall, this Samsung QLED TV combines vivid colors, sharp 4K resolution, and smart functionality for a complete home entertainment experience. Specifications: QLED technology delivers vibrant colors and enhanced brightness 55-inch 4K UHD display provides immersive viewing HDR improves contrast and image realism Smart TV platform supports streaming apps and connected features Slim design complements modern living spaces
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.
The Samsung Odyssey G9 49″ 240Hz OLED Gaming Monitor delivers ultra-wide immersive gameplay. First, it features a curved OLED panel with deep blacks and vibrant colors. The monitor offers a 49-inch screen with 240Hz refresh rate and fast response time. In addition, the ultra-wide design expands your field of view for gaming and multitasking. Moreover, the smart features and ergonomic design improve comfort and usability. Therefore, gamers can enjoy smooth performance, sharp visuals, and a fully immersive experience. Specifications: 49″ OLED curved display delivers deep blacks and vibrant colors 240Hz refresh rate ensures ultra-smooth and responsive gameplay Ultra-wide screen improves multitasking and gaming immersion Fast response time reduces motion blur in fast-paced scenes Smart features and ergonomic design enhance usability and comfort
Samsung 24″ Essential Monitor Aspect Ratio16:9 Brightness (Typical)250 Contrast Ratio Static1000:1(Typical) Resolution1,920 x 1,080 Response Time5 (GTG） Viewing Angle (H/V)178°/178° Specifications Detail Display Screen Size (Class)24 Flat / CurvedFlat Active Display Size (HxV) (mm)527.04 x 296.46 Aspect Ratio16:9 Panel TypeIPS Brightness (Typical)250 Brightness (Min)200 Contrast Ratio Static1000:1(Typical) Resolution1,920 x 1,080 Response Time5 (GTG） Viewing Angle (H/V)178°/178° Color SupportedMax 16.7M Color Gamut (NTSC 1976)72% (CIE 1931) Refresh RateMax 75Hz General Feature Eco Saving PlusYes Eye Saver ModeYes Flicker FreeYes Game ModeYes Image SizeYes Windows CertificationWindows 10 FreeSyncYes Interface D-Sub1 Display Port Out Version HDMI1 HDMI Version1.4 HDCP Version (HDMI)1.2 USB Hub VersionNo USB-C Charging PowerNo Operation Conditions Temperature10~40 ℃ Humidity10~80, Non-condensing Design Front ColorBLACK Rear ColorBLACK Stand ColorBlack Stand TypeSIMPLE Tilt-2.0°(-1.0°/+2.0°)~20.0°(±2.0°) Wall Mount (mm)100.0 x 100.0 Eco Energy Efficiency ClassB Recycled Plastic20.6 % Power Power SupplyAC 100~240V Power Consumption (Max)25W Power Consumption (Typ)20.0 W Power Consumption (DPMS, W)0.50 Power Consumption (Off Mode, W)0.30 Power Consumption (Yearly)29 kWh/year TypeExternal Adaptor Dimension Set Dimension with Stand (WxHxD, mm)539.5 x 422.8 x 217.4 Set Dimension without Stand (WxHxD, mm)539.5 x 322.8 x 41.2 Package Dimension (WxHxD, mm)607.0 x 147.0 x 380.0 Specifications: Specifications : Aspect Ratio16:9 Brightness (Typical)250 Contrast Ratio Static1000:1(Typical) Resolution1,920 x 1,080 3 Year Warranty
Genuine-spec bilingual UK/Arabic layout keyboard replacement for MacBook Pro 13″ (Model A1708, 2016–2017)—featuring Apple’s second-generation Butterfly mechanism, backlighting, and OEM fit for seamless typing in both English and Arabic. Compatible With: MacBook Pro 13-inch with Touch Bar (2016 & 2017 models, A1708, Model Identifiers MacBookPro13,1 / MacBookPro14,1). Layout: Bilingual UK/Arabic—primary legends in Arabic, secondary (top-left) legends in UK English (QWERTY). Includes £ symbol, Arabic numerals (٠١٢٣…), and standard Arabic character set aligned with Apple’s regional configuration. Keyboard Type: Apple’s 2nd-generation Butterfly mechanism—thin profile with reduced key travel; requires careful handling and clean environment during installation. Integrated Features: Backlit keys (essential for low-light use—legends remain legible) Ambient light sensor support Original-style ribbon cable connector for direct logic board attachment Backlit keys (essential for low-light use—legends remain legible) Ambient light sensor support Original-style ribbon cable connector for direct logic board attachment Build & Fit: Precision-engineered to match Apple’s original dimensions, key alignment, and top-case curvature—ensures consistent actuation and aesthetic continuity. Installation Note: Keyboard is fully glued into the top case. Replacement requires complete disassembly, meticulous adhesive removal, and professional re-gluing. Recommended for certified or highly experienced technicians only.
The ACER Nitro VG271ZEbmiipx 27″ Monitor delivers smooth and immersive visuals for gaming, work, and multimedia.It features a 27-inch Full HD display with crisp details and vibrant colors. Moreover, its high refresh rate ensures fluid motion during fast-paced games and videos. This monitor uses an IPS panel for wide viewing angles and consistent color across the screen. Additionally, the fast response time reduces blur and ghosting during competitive gaming. The anti-glare coating minimizes reflections in bright environments. HDMI and DisplayPort inputs allow easy connection to gaming PCs and consoles. Furthermore, tilt adjustment helps you find a comfortable viewing angle during long sessions. Low blue light and flicker-free technologies reduce eye strain during extended use. This display is ideal for gamers, students, and home users alike. Therefore, it supports competitive gaming, streaming, and everyday computing. Finally, it combines sharp visuals, smooth performance, and comfort features for daily use. Specifications: Screen Size: 27″ Full HD IPS panel Refresh Rate: High (typically 240Hz for this model) Response Time: Fast for competitive gaming Ports: HDMI + DisplayPort Features: Anti-glare, low blue light, flicker-free eye-care
The AOC 27G40 27″ 180Hz Gaming Monitor is built for serious gamers who want fast and smooth performance. It features a 27-inch Fast IPS screen with Full HD resolution. The colors are bright, and the details are sharp from every angle. With a 180Hz refresh rate, your games will run ultra-smooth and clear. Fast motion feels natural with no lag or delay. The 1ms response time helps reduce motion blur and ghosting during fast-paced scenes. Thanks to Adaptive-Sync, you won’t have screen tearing or stuttering. This makes gameplay seamless and enjoyable, even in intense battles. The monitor also supports HDR10 for improved contrast and color accuracy. It covers 128% of the sRGB color space, giving you bold and rich visuals. The screen reaches 300 nits of brightness, so everything stays clear in bright rooms. The AOC 27G40 27″ 180Hz Gaming Monitor includes HDMI 2.0 and DisplayPort 1.4 connections. You can easily connect your PC, console, or other devices. Its ergonomic stand lets you adjust the height, tilt, swivel, and pivot the screen. This helps you find the most comfortable viewing angle. You can also mount it using a VESA-compatible setup for more flexibility. Whether you’re gaming casually or competitively, this gaming monitor delivers excellent speed, clarity, and color. It’s built to meet the demands of modern gaming with style and comfort. Specifications: Display : 27″ Rapid IPS Resolution : 1920×1080 FHD Refresh Rate : 180Hz Response Rate : 0.5ms Speaker : 2W x2 Adjustable : Fully adjustable
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 HP Series 5 Pro 23.8″ FHD USB‑C Conferencing Monitor delivers crisp visuals on a 23.8‑inch Full HD IPS screen with a 16:9 aspect ratio. Additionally, it features a built‑in 5 MP Poly Studio tiltable webcam. This webcam, combined with AI noise reduction, ensures clear video and audio during calls. Moreover, the monitor supports USB‑C video input with up to 100 W power delivery. It also provides USB‑C data transfer, HDMI 2.0, DisplayPort 1.4, USB‑A ports with one charging port, an audio combo jack, and an RJ‑45 Ethernet port. These connections simplify hybrid work setups. Furthermore, the ergonomic stand allows height adjustment for comfort. The ambient light sensor with HP Eye Ease reduces blue light while preserving color accuracy. The monitor incorporates recycled materials in its design and comes with a three‑year limited warranty for peace of mind. Specifications: 23.8″ Full HD (1920 × 1080) IPS display with 350 nits brightness and 1500:1 contrast Built‑in 5 MP Poly Studio webcam with AI noise reduction USB‑C video with up to 100 W power delivery and USB‑C data port HDMI 2.0, DisplayPort 1.4, USB‑A ports, Ethernet, and audio combo jack Ergonomic stand with height adjustment and HP Eye Ease ambient light sensor
GAMDIAS Hermes E3 RGB Mechanical Gaming Keyboard Blue Switch with 19 Built-in Lighting Effects Certified Optical Switches and N-Key Rollover & Anti-Ghosting Functionality (Hermes E3 Black) About this item Extreme Gaming RGB Lighting Modes: This wired keyboard has 19 Build-in RGB backlight modes powered by 16.8 million RGB backlighting for gamers and provide comfortable ambient light for typing. It comes with the adjustable brightness and WASD and Arrow Keys Exchange 8 Additional Multimedia Keys. Compact 60 Percent Design for Mobility: The 60% gaming keyboard is a compact 61-key elegant design for both gaming and office typing for computers, PC and desktops. Blue Switches & Full Anti-ghosting: The classic blue switches provide tactile and audible feedback, deliver accurate and responsive key commands. All keys are fully conflict-free, the perfect choice for intense gameplay and fast typing. All key can be reassigned and macros can be created for effortless operation. Ergonomic & Portable design: The 61 key compact keyboard is not only easy to operate and store, but it also boasts its solid front plate and comes in Classic Black or White touch-up to fit flawlessly into all battle stations. Superior Control: Gain complete control using the responsive mechanical switches with a built-in vertical LED perception sensor and anti-ghosting with N-Key rollover.
The ViewSonic VA24D1-H 24″ FHD 100Hz Monitor delivers smooth and clear visuals for work, gaming, and daily use. It offers Full HD resolution with bright colors. The screen shows sharp details that improve movies, documents, and web browsing. This makes your viewing experience more comfortable. Moreover, the ViewSonic VA24D1-H 24″ FHD 100Hz Monitor includes a fast 100Hz refresh rate. This feature reduces motion blur and screen tearing. It makes gaming and fast scenes much smoother. It also improves general tasks like scrolling and tracking movement. In addition, the monitor features HDMI and VGA connections. These ports make setup quick and simple. You can connect laptops, desktops, and media players easily. This gives you strong flexibility for work and entertainment. Furthermore, the ViewSonic VA24D1-H 24″ FHD 100Hz Monitor includes important eye-care technology. The flicker-free screen helps reduce eye strain. The blue light filter adds more comfort during long hours. This makes the monitor ideal for study, office work, and long sessions. Also, the slim bezel design gives the monitor a modern and clean look. It fits well in home and office spaces. The thin edges help create smooth multi-monitor setups. This improves both productivity and style. The stand on the ViewSonic VA24D1-H 24″ FHD 100Hz Monitor offers stable support. You can tilt the screen to find a comfortable angle. This helps you maintain a healthy posture. It also improves your overall viewing comfort. Overall, the ViewSonic VA24D1-H 24″ FHD 100Hz Monitor offers clarity, smooth motion, and strong comfort. It works well for gaming, streaming, office tasks, and daily use. It is a reliable monitor for users who want simple performance and modern design. Specifications: Display : 24″ IPS Resolution : 1920×1080 Refresh Rate : 100Hz Response Time : 5ms
HP P24q G4 QHD Height Adjust Monitor Are you seeking a monitor that can elevate your workstation’s comfort and productivity? Meet the HP P24q G4 QHD Height Adjust Monitor, a versatile solution designed to meet your needs. One of the key features of the HP P24q G4 is its Quad High Definition (QHD) display. With four times the resolution of standard HD, you’ll experience stunning clarity and detail in your work and entertainment. The 24-inch screen size strikes a perfect balance, providing enough space for multitasking without taking up excessive desk space. It’s a comfortable and functional addition to any workspace. Adjusting the monitor to your preferred height is effortless, thanks to its height-adjustable stand. This allows you to tailor your viewing angle for maximum comfort, reducing strain during extended work hours. Setting up the P24q G4 is a straightforward process. Connect it to your PC or laptop through standard ports, and you’re ready to enhance your workspace. Say goodbye to complicated installation procedures. The monitor’s modern design not only complements your workspace but also adds a touch of sophistication. It blends seamlessly with your existing setup, enhancing the overall aesthetics. Whether you’re a professional or a casual user, the HP P24q G4 offers fantastic value for your investment. Its affordable price point ensures that you can enjoy top-notch features without breaking the bank. Specifications: 60.45 cm (23.8″) QHD (2560 x 1440) Asset control; Language selection; On-screen controls; Pivot rotation; Plug and Play; User controls; Anti-glare Response time: 5ms GtG (with overdrive) HDMI; VGA
New A1932 A2179 A2337 DC in Power Jack Connector for Macbook Air 13" Type-C USB-C Power 821-01658-A 2018 2019 2020 Year New A1932 A2179 A2337 DC in Power Jack Connector for Macbook Air 13″ Type-C USB-C Power 821-01658-A 2018 2019 2020 Year About this item New A1932 A2179 A2337 DC Jack Power DC-in Board for MacBook Retina 13″ DC Power Jack Board We have good after-sales services. We share the latest information on laptop spare parts in the Chinese market with all our customers. This is NOT an easy job for someone with no technical skills in Disassembling or Assembling a laptop, So only purchase this item if you know how to install it. Each DC Board is tested before shipping and working.
LG 24 inch UltraGear Gaming Monitor 24GQ50F-B is designed for fast-paced gaming and smooth visuals. It features a 23.8-inch Full HD display built for competitive play. Additionally, it supports a high refresh rate for responsive motion. Therefore, it delivers a smooth and fluid gaming experience for esports and action games. The LG 24GQ50F-B offers 1920 × 1080 resolution with a VA panel and 165Hz refresh rate. Moreover, it includes 1ms Motion Blur Reduction for sharper fast movement. It also supports AMD FreeSync Premium to reduce screen tearing and stutter. In addition, it provides gaming features like Black Stabilizer and Dynamic Action Sync for better visibility and reaction speed. Furthermore, the monitor uses a 3-side borderless design for a wider viewing feel. As a result, it suits both single-screen setups and multi-monitor gaming stations. It also includes tilt adjustment for basic ergonomic positioning. Specifications: 23.8-inch Full HD (1920 × 1080) VA display 165Hz refresh rate for ultra-smooth gameplay 1ms Motion Blur Reduction technology AMD FreeSync Premium support Black Stabilizer and Dynamic Action Sync gaming tools
The Samsung 85″ The Frame QLED 4K Smart TV QA85LS03FAUXTW uses an 85-inch 4K UHD LCD panel with 3840 × 2160 resolution. It is designed for both standard TV viewing and wall-mounted display use. The display uses a QLED layer with Quantum Dot technology to improve color reproduction. As a result, it produces wider color output and more consistent brightness across different content types. In addition, it supports 4K upscaling for lower-resolution video. The TV supports HDR formats for compatible content. This increases contrast between bright and dark areas and improves detail visibility. Also, motion processing reduces blur during fast-moving scenes such as sports and action content. Samsung runs this model on Tizen OS. Therefore, users access streaming apps, SmartThings integration, and smart features through a unified interface. It also supports Wi-Fi and Bluetooth for wireless device connections. Connectivity includes HDMI ports, USB ports, Ethernet LAN, and optical audio output. It supports external devices such as gaming consoles and sound systems. This model uses The Frame design concept, which allows the TV to function as both a display and a digital art screen when not in use. Specifications: 85-inch 4K UHD LCD panel (3840 × 2160 resolution) Quantum Dot (QLED layer) color enhancement 4K upscaling for lower-resolution content HDR support for compatible content Tizen OS with HDMI, USB, Wi-Fi, Bluetooth, Ethernet connectivity
The Samsung Crystal UHD U8000F 50″ 4K Smart TV UA50U8000FUXTW uses a 50-inch LCD panel with 3840 × 2160 resolution. It delivers standard 4K output for everyday viewing, streaming, and console use. Samsung uses the Crystal Processor 4K for image processing and upscaling. As a result, lower-resolution content converts closer to 4K quality on the display. In addition, the TV supports HDR10 and HDR10+, which improve contrast between bright and dark areas for compatible content. The display runs at a 60 Hz refresh rate. Also, Motion Xcelerator reduces blur during fast motion scenes such as sports and action content. Samsung equips the TV with Tizen OS. Therefore, users access streaming apps, SmartThings integration, and smart features through a responsive interface. Connectivity includes HDMI ports, USB ports, Wi-Fi, Bluetooth, Ethernet LAN, and optical audio output. In addition, the TV supports ALLM for basic console gaming responsiveness. This model focuses on 4K resolution, standard HDR performance, and essential smart TV features without advanced gaming or local dimming technology. Specifications: 50-inch LCD panel with 3840 × 2160 4K UHD resolution Crystal Processor 4K with upscaling support HDR10 and HDR10+ compatibility 60 Hz refresh rate with Motion Xcelerator Tizen OS with HDMI, USB, Wi-Fi, Bluetooth, Ethernet connectivity
The MSI MAG 27CQ6PF 27″ 2K 180Hz Curved Gaming Monitor delivers smooth visuals and immersive gaming experiences. It is designed for competitive and casual gamers. This monitor combines high performance with stunning image quality. It features a 27-inch curved display for immersive viewing. The 1500R curvature brings you closer to the action. This provides a more natural and engaging experience. The MSI MAG 27CQ6PF offers 2K resolution for sharp details. You can enjoy crisp images in games and media. This improves clarity compared to standard Full HD monitors. With a 180Hz refresh rate, it ensures ultra-smooth gameplay. Fast action scenes feel fluid and responsive. This gives gamers a competitive edge in every match. The monitor also features a fast response time. It reduces motion blur and ghosting in fast-paced games. This provides clear visuals for intense gaming sessions. Adaptive sync technology ensures tear-free and stutter-free performance. It keeps gameplay smooth even during demanding scenes. This enhances your overall gaming experience. The MSI MAG 27CQ6PF includes multiple connectivity options. You can connect gaming consoles, PCs, and other devices. This makes it versatile for entertainment and work. Its sleek design with thin bezels adds style. It fits perfectly in gaming setups or workstations. The adjustable stand improves comfort during long sessions. In summary, the MSI MAG 27CQ6PF 27″ 2K 180Hz Curved Gaming Monitor combines speed, clarity, and immersion. It is perfect for gamers who demand performance. Specifications: Display : 27″ Rapid VA Screen : 2560 x 1440 (WQHD) Refresh Rate : 180Hz Response Rate : 0.5ms Curvature : 1500R
Used OEM Original Apple Logic Board Working, 2019 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 HUAWEI IdeaHub B2-65 is a 65-inch intelligent collaboration display designed for meetings, classrooms, and hybrid workspaces. It combines a 4K UHD interactive touchscreen with built-in conferencing tools to support smooth communication. Additionally, it enables writing, video meetings, and wireless sharing in one integrated device. Moreover, it features a 4K resolution screen with zero-gap bonding. Therefore, it delivers clear visuals and smooth touch interaction for presentations and collaboration. Furthermore, Huawei equips it with a 4K camera, 6-microphone array, and 30W speakers. So, it provides clear video, strong voice pickup, and balanced sound for meetings up to about 10 meters. In addition, it supports dual Wi-Fi connectivity and wireless projection. Therefore, users can share content easily from laptops, tablets, and phones without cables. It also includes an intelligent whiteboard for real-time writing and collaboration. Also, it supports both Android and optional Windows OPS system integration. So, it fits different office and enterprise IT setups. Overall, the Huawei IdeaHub B2-65 delivers a complete all-in-one collaboration solution with strong audio-visual performance, smart connectivity, and interactive meeting tools. Specifications: 65-inch 4K UHD interactive touchscreen 4K camera with intelligent conferencing support 6-microphone array with 10m pickup range Wireless projection and dual Wi-Fi support Integrated whiteboard for collaboration
