The Horion Interactive Flat Panel 65″ transforms any space into a dynamic and interactive environment. Whether in classrooms or conference rooms, it enhances collaboration and productivity. Featuring a stunning 65-inch 4K UHD display, the Horion Interactive Flat Panel delivers crystal-clear visuals and vibrant colors. This ensures every detail is visible, making presentations and lessons more engaging. The Interactive Flat Panel comes with advanced touch technology, allowing multiple users to interact with the screen simultaneously. This fosters teamwork and encourages active participation. With built-in annotation tools, the Interactive Flat Panel 65″ makes it easy to highlight key points and add notes during presentations. These tools are intuitive and user-friendly, making it accessible for everyone. Connectivity is seamless with the Interactive Flat Panel. It offers multiple ports, including HDMI, USB, and wireless options, ensuring compatibility with various devices. This flexibility makes it easy to integrate into your existing setup. The Interactive Flat Panel 65″ is designed for ease of use. Its user-friendly interface and responsive touch screen make it simple to navigate and control. Whether you’re a teacher or a business professional, you’ll find it easy to use. In addition, the Interactive Flat Panel includes powerful built-in speakers, delivering clear and immersive audio. This enhances the overall experience, making it ideal for multimedia presentations. In conclusion, the Horion Interactive Flat Panel 65″ combines stunning visuals, interactive features, and ease of use for a superior collaborative experience. Upgrade your space with the Interactive Flat Panel and boost engagement and productivity today. Specifications: Display : 65″ Resolution : 4K (3840×2160) Refresh Rate : 60Hz CPU : Octacore Ram : 8GB Memory : 128GB GPU : Mali G52-MP8 OS : Android 13.0 Sensor : Infrared, NFC, Light Sensor
Experience elite performance with the Lenovo ThinkPad E14 Gen 3, powered by the AMD Ryzen 7 5700U 8-core processor. Featuring 16GB RAM, a lightning-fast 512GB NVMe SSD, and a professional 14-inch FHD display, this laptop is engineered for high-level productivity and military-grade durability.
The Royal Kludge RK61 is an ultra-compact 60% mechanical gaming keyboard featuring brilliant RGB backlighting and smooth, linear RK Red switches. Equipped with versatile triple-mode connectivity (Bluetooth, 2.4GHz wireless, and USB-C wired), it offers maximum flexibility and a clean, cable-free desktop layout optimized for both competitive gaming and office productivity. ✅ Full Specifications: Model: Royal Kludge RK61 (61 Keys) — Black Edition Interface / Connection: Triple Mode Connection (3C): Wireless 2.4GHz (via included USB dongle) Bluetooth 5.1 (Pairs with up to 3 devices simultaneously) Wired USB Type-C (Detachable cable included) Interface / Connection: Triple Mode Connection (3C): Wireless 2.4GHz (via included USB dongle) Bluetooth 5.1 (Pairs with up to 3 devices simultaneously) Wired USB Type-C (Detachable cable included) Switch Type: RK Red Mechanical Switches (Linear feel, smooth and quiet keystrokes, ideal for fast-paced gaming and quiet office typing) Hot-Swappable PCB: Yes (Supports easy replacement of 3-pin or 5-pin switches without soldering) Layout: Compact 60% Minimalism Layout, 61 Keys (US QWERTY / Arabic-English dual print variants supported) Backlighting: Full dynamic RGB Backlight with 18 customizable lighting modes, 8 monochrome modes, and adjustable brightness/speed Material & Build: Durable ABS polymer housing with high-quality ergonomically curved keycaps to reduce hand fatigue Design & Form Factor: Compact, space-saving design with a built-in 8° ergonomic typing angle for optimal comfort Battery Capacity: 1450mAh rechargeable battery built-in (Up to 13 hours of continuous use with backlighting active, high standby efficiency) Compatibility: Windows, macOS, Android, iOS, Linux, and major gaming consoles Dimensions: Approx. 289 x 103 x 39 mm (11.4 x 4 x 1.6 inches) Weight: Approx. 0.50 kg (1.1 lbs)
Genuine Apple MagSafe 3 charging cable (2-meter length), originally shipped with MacBook Pro 14"/16" (2021, M1 Pro/Max) and MacBook Pro 16" (2023, M2/M3 Max). Used but fully functional, tested for safe power delivery and data handshake with Apple laptops. Compatibility: MacBook Pro 14″ (2021–2023, M1 Pro/Max, M2 Pro/Max, M3 Pro/Max) MacBook Pro 16″ (2021–2023, M1 Max, M2 Max, M3 Max) Works with Apple 67W, 96W, and 140W USB-C Power Adapters (sold separately) MacBook Pro 14″ (2021–2023, M1 Pro/Max, M2 Pro/Max, M3 Pro/Max) MacBook Pro 16″ (2021–2023, M1 Max, M2 Max, M3 Max) Works with Apple 67W, 96W, and 140W USB-C Power Adapters (sold separately) Connector Type: MagSafe 3 (magnetic, tri-oval tip) on laptop end USB-C on power adapter end MagSafe 3 (magnetic, tri-oval tip) on laptop end USB-C on power adapter end Cable Length: 2 meters (≈6.6 feet) – longer than the standard 1.8m cable, ideal for flexible desk or bedside setups. Condition: Original Apple cable, previously used but fully tested: No fraying, kinks, or exposed wires MagSafe 3 connector intact with strong magnetic hold Charges MacBook at full rated speed (supports up to 140W with compatible adapter) Passes Apple’s authentication handshake (no “Not Supported” warnings) No fraying, kinks, or exposed wires MagSafe 3 connector intact with strong magnetic hold Charges MacBook at full rated speed (supports up to 140W with compatible adapter) Passes Apple’s authentication handshake (no “Not Supported” warnings) What’s Included: MagSafe 3 to USB-C cable only Power adapter NOT included MagSafe 3 to USB-C cable only Power adapter NOT included Why Choose This: Cost-effective alternative to buying new 100% genuine Apple—no third-party risks (overheating, slow charging, compatibility errors) Ideal for backup, travel, or replacing a damaged original cable Cost-effective alternative to buying new 100% genuine Apple—no third-party risks (overheating, slow charging, compatibility errors) Ideal for backup, travel, or replacing a damaged original cable
The Samsung 27″ 120Hz Essential S3 Monitor LS27F320GAMXUE delivers clear and smooth visuals with a Full HD (1920 × 1080) resolution and 120 Hz refresh rate, which helps reduce motion blur and lag during fast‑moving scenes. Additionally, the IPS panel provides wide viewing angles and consistent color across the screen, making it suitable for work, entertainment, and casual gaming. The monitor includes Game Picture Mode to optimize contrast and color settings for different game genres. Moreover, Samsung equips this monitor with Eye Saver Mode and Flicker Free technology to help reduce eye strain during extended use. Therefore, users can stay comfortable during long work or play sessions. The design features a modern, slim bezel look that enhances any desk setup. Connectivity includes two HDMI 1.4 ports for flexible device connection. Specifications: Display : 27″ Resolution : 1920 x 1080 FHD Refresh Rate : 120Hz Response Rate : 5ms
The MSI MPG 491CQPX QD-OLED 49″ DQHD 240Hz Curved Gaming Monitor gives you a huge, immersive ultrawide screen for gaming and productivity. The 49-inch panel with 5120 × 1440 resolution delivers sharp, detailed imagery for games, movies, work and editing. The wide 32:9 aspect ratio offers expansive workspace and full immersive views. Moreover, the MSI MPG 491CQPX QD-OLED 49″ DQHD 240Hz Curved Gaming Monitor features a very fast 240 Hz refresh rate. This high refresh makes motion smooth and fluid during fast games and action scenes. With a 0.03 ms GtG response time, visuals stay sharp and input feels responsive. This reduces motion blur and keeps gameplay crisp. In addition, the monitor uses a QD-OLED panel with deep contrast and rich colors. Blacks are deep, colors pop, and images look vivid under different lighting. Furthermore, the MSI MPG 491CQPX QD-OLED 49″ DQHD 240Hz Curved Gaming Monitor supports adaptive sync (G-Sync compatible) to prevent screen tearing. It also supports HDR with high peak brightness for richer highlights. This makes games, movies, and graphics feel more dynamic and realistic. Also, connectivity is modern and versatile. You get HDMI 2.1 and DisplayPort 1.4 for high refresh output, plus USB-C with power delivery for convenience. The monitor’s stand offers tilt, swivel, and height adjustments for a comfortable setup. The sleek design and slim bezels give a clean, premium look. Overall, the MSI MPG 491CQPX QD-OLED 49″ DQHD 240Hz Curved Gaming Monitor blends size, speed, and image quality into one impressive display. It enhances gaming performance, boosts productivity, and elevates media consumption. This monitor is ideal for gamers, creators, and multitaskers who want top-tier visuals and immersive experience. Specifications: Display : 49″ QD-OLED Resolution : 5120 x 1440 (DQHD) Refresh Rate : 240Hz Response Time : 0.03ms Curvature : 1800R
Specifications Feature Value Feature Value Input/Output Other Sound Mode Extra Bass Mode Category Speakers Use Other Input Power (W) 25-49W Voice Control No Waterproof Yes Support APP No Intelligent Personal Assistant None Audio Crossover Full-Range Number of Loudspeaker Enclosures 2 Power Source None Channels 2 (2.0) Battery Yes Communication USB Speaker Type Portable Cabinet Material Plastic Brand Name QUCAA Origin Mainland China Certification CE
The Dell OptiPlex 3040 Micro delivers dependable business performance in a compact, energy-efficient design. Featuring an Intel Core i5 6th Gen processor, 8GB DDR3L RAM, and SSD storage options, it is built for smooth multitasking, fast startups, and reliable operation in professional environments.
Dell 24 Monitor – E2422HN Functional, space-saving design Convenient connectivity: Connect to current and legacy systems via HDMI, VGA and DP ports. Maximize your desktop: Cut clutter with space-saving features like a compact stand and improved cable management that hides cables while complementing any workspace. Clean, simple design: A slim bezel adds a modern look. Adapts to your needs: Make your workspace your own with VESA-compatible mounts and stands. manufacturer link 1 Year Warranty
Brand-new UK-layout keyboard replacement (Z1 Black) for MacBook Air models with M2, M3, and M4 chips (13.6″ and 15″, 2023–2025). Compatible with A2681 and A2941—precision-engineered for seamless fit and reliable typing performance. This is a brand-new, high-quality keyboard replacement designed specifically for the latest MacBook Air models featuring Apple’s M2, M3, and M4 chips (released 2023–2025). It fits both the 13.6-inch (Model A2681) and 15-inch (Model A2941) MacBook Air variants and comes in the sleek Z1 Black (Space Black) finish with a UK English layout (including the £ symbol and correct key positioning). Engineered to match Apple’s original specifications, this keyboard ensures a responsive, quiet, and comfortable typing experience with consistent key travel and tactile feedback. It includes the full top case assembly with integrated backlighting, function keys, and Touch ID sensor cutout (sensor not included), making it ideal for professional repairs or replacements after liquid damage, wear, or key failure. Installation requires technical expertise and proper tools due to the integrated nature of the MacBook Air’s top case design. Recommended for certified technicians or experienced repair professionals. Important Notes: This is a keyboard + top case assembly, not just keycaps. Touch ID sensor is not included—you must transfer your original sensor to maintain functionality. Compatible only with MacBook Air M2 (2022–2023), M3 (2023–2024), and M4 (2024–2025) models in 13.6″ (A2681) and 15″ (A2941) sizes. Color: Z1 Black (Space Black) – matches official Apple Space Black finish. Layout: UK English (ISO) – features the correct “£” key and shifted Enter key.
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
The HP Omen 24″ FHD 165Hz Gaming Monitor delivers clear, sharp visuals for gaming and everyday use. Its Full HD resolution shows crisp details in games, videos, and work. The 24-inch screen size offers a compact yet immersive view. This makes it easy to focus during intense gaming or tight spaces. Moreover, the HP Omen 24″ FHD 165Hz Gaming Monitor features a 165 Hz refresh rate. This higher refresh rate makes motion smoother and more fluid. Fast-paced games and action scenes look clean and sharp. This reduces blur and improves your reaction time. In addition, the monitor offers low response time for minimal input lag. This helps controls feel responsive and precise. It improves performance in competitive games and fast shooters. This makes every frame count when speed matters. Furthermore, the HP Omen 24″ FHD 165Hz Gaming Monitor uses a panel that provides good colors and contrast. Colors look vibrant and natural for gaming, movies, and everyday tasks. Also, the monitor comes with easy connectivity via HDMI and DisplayPort. You can connect consoles, PCs, or laptops easily. Setup is quick and simple without extra hassle. This makes it a versatile pick for different setups. The design of the HP Omen 24″ FHD 165Hz Gaming Monitor is clean and modern. The slim bezels give it a sleek look. The stand is sturdy and stable, fitting well on small desks. The form factor suits minimal and gaming-focused spaces. Overall, the HP Omen 24″ FHD 165Hz Gaming Monitor blends speed, clarity, and compactness in one strong gaming display. It enhances gameplay, offers sharp visuals, and stays responsive. This monitor is ideal for gamers who want performance and simplicity without a large footprint. Specifications: Display : 24″ IPS Resolution : 1920×1080 Refresh Rate : 165Hz Response Time : 1ms
The Lenovo Legion R45w-30 44.5″ Dual QHD Gaming Monitor gives you a massive, ultra-wide screen for gaming, work, and media. Its 44.5-inch curved panel wraps around your view for full immersion. The Dual QHD resolution (5120 × 1440) delivers sharp, detailed images and wide viewing space. This helps games and content feel vivid and real. Moreover, the Lenovo Legion R45w-30 44.5″ Dual QHD Gaming Monitor uses a fast 165 Hz refresh rate — and can overclock up to 170 Hz for ultra-smoother motion. Fast movements and animations appear smooth and fluid. In addition, the monitor features a VA panel with strong contrast (3000:1), deep colors, and wide viewing angles. Colors stay rich and natural even from side angles. It supports 99% sRGB and wide-gamut coverage, ideal for gaming, creative work, and media editing. The 1500R curve and anti-glare surface improve comfort and immersion. Furthermore, the Lenovo Legion R45w-30 44.5″ Dual QHD Gaming Monitor includes modern connectivity. It offers HDMI 2.1, DisplayPort 1.4, USB-C (with power delivery and data), USB hub ports, and even Ethernet. Also, the monitor adds useful features like built-in speakers, adaptive sync (AMD FreeSync Premium Pro), HDR support (DisplayHDR 400), and ergonomic stand adjustments. The stand allows height, tilt, and swivel changes for comfortable setup. Its curved, wide display boosts productivity, creativity, and gaming immersion. Overall, the Lenovo Legion R45w-30 44.5″ Dual QHD Gaming Monitor blends size, speed, clarity, and flexibility into one powerful screen. It transforms your PC into a wide, immersive workstation or gaming setup. This monitor is perfect for gamers, creators, and multitaskers who want maximum space and smooth performance. Specifications: Display : 44.5″ VA Resolution : 5120×1440 Refresh Rate : 165Hz Response Time : 1ms Curvature : 1500R
A professional pre-owned HP EliteBook 840 G5 or G6 with 14" display, 8th Gen Core i5, 8GB RAM, and 256GB SSD—offering reliable performance, enterprise security, and portability for business and everyday use.
The ViewSonic VA2450-H-12 24″ FHD 100Hz Monitor offers smooth visuals for work, entertainment, and gaming. It delivers sharp Full HD clarity with bright colors. The screen shows clean images that make videos and documents look better. This helps you enjoy a more comfortable viewing experience. Moreover, the ViewSonic VA2450-H-12 24″ FHD 100Hz Monitor features a fast 100Hz refresh rate. This reduces motion blur during fast scenes. It makes gaming smoother and more responsive. It also improves scrolling and general use. In addition, the monitor includes HDMI and VGA ports. These connections make setup quick and simple. You can use the monitor with laptops, PCs, and media devices. This offers strong flexibility for daily tasks. Furthermore, the ViewSonic VA2450-H-12 24″ FHD 100Hz Monitor has an eye-care design. It includes flicker-free technology to reduce strain. The blue light filter helps protect your eyes during long sessions. This makes the monitor ideal for work and study. Also, the slim frame design gives the monitor a modern look. It saves space on your desk and improves your workspace. The clean edges make multi-monitor setups easy and seamless. This helps create a professional environment. The stand on the ViewSonic VA2450-H-12 24″ FHD 100Hz Monitor offers stable support. You can tilt the screen for better viewing comfort. This helps you find a position that suits your posture. It improves your daily productivity. Overall, the ViewSonic VA2450-H-12 24″ FHD 100Hz Monitor provides clear visuals, smooth motion, and strong comfort. It works well for gaming, work, streaming, and general use. It is a reliable choice for users who want performance and simplicity. Specifications: Display : 24″ IPS Resolution : 1920×1080 Refresh Rate : 100Hz Response Time : 5ms
The LG 27U511SA-W 27″ FHD IPS Smart Monitor with Speakers is built for comfortable viewing, entertainment, and everyday productivity. Its 27-inch Full HD IPS display delivers clear visuals and consistent colors, making it suitable for work, streaming, and browsing. Moreover, the IPS panel ensures wide viewing angles so images remain accurate from different positions. This smart monitor allows direct access to streaming apps without requiring a connected PC. Additionally, the built-in speakers provide convenient audio for movies, meetings, and casual gaming without external devices. The slim and modern design fits easily into home or office environments while keeping your workspace clean and organized. Connectivity options allow easy connection to laptops, consoles, and media devices. Furthermore, ergonomic adjustments help users maintain comfortable viewing positions during long sessions. Therefore, the monitor suits home users, students, and professionals seeking versatility and convenience. Finally, it combines smart functionality, quality visuals, and built-in sound for daily entertainment and productivity needs. Specifications: 27-inch Full HD IPS smart monitor Built-in speakers for convenient audio Smart features for direct streaming access Wide viewing angles with accurate colors Modern design with versatile connectivity
In the realm of monitors, the ViewSonic VA2201-H stands out as a reliable and clear solution, offering a perfect blend of visual excellence and simplicity for an enhanced viewing experience. Transitioning to its key features, the VA2201-H excels in providing crystal-clear visuals. This monitor is designed to deliver sharp and vibrant images, ensuring a visually engaging experience for work or entertainment. Moreover, this display impresses with its sleek and minimalistic design. The ViewSonic VA2201-H not only enhances the aesthetics of your workspace but also ensures straightforward setup, making it an ideal choice for users seeking simplicity. In addition to its functionality, the VA2201-H offers user-friendly controls and connectivity options, ensuring a hassle-free experience. This monitor seamlessly adapts to various settings, providing flexibility for different viewing preferences. Furthermore, ViewSonic’s commitment to user satisfaction is evident in the VA2201-H’s energy-efficient design and eye-care technology. It’s a reliable companion for extended viewing periods without compromising on visual quality. In conclusion, the ViewSonic VA2201-H redefines clarity and simplicity, combining clear visuals, sleek design, and user-friendly features. Elevate your viewing experience effortlessly with the VA2201-H – your clear and straightforward solution for visual excellence! Specifications Full HD 1080p 100Hz Refresh Rate 1ms Response Time Flicker-Free & Blue Light Filter View Mode: Game/Movie/Web/Text/Mono Inputs : HDMI/VGA Check other options here!
Non-slip, skid-proof rubber feet designed to perfectly fit MacBook Air models A1466, A1369, and A1370—restoring grip, stability, and protection for your laptop’s base. Keep your MacBook Air steady and scratch-free with these high-quality replacement rubber feet, engineered to match the original Apple design for MacBook Air models A1466 (2010–2017), A1369 (11″ 2010–2011), and A1370 (11″ 2011–2015). These skid-proof rubber feet provide excellent traction on desks, tables, and other smooth surfaces, preventing unwanted sliding during typing or use. Made from durable, soft-touch silicone-rubber material, they also help protect your laptop’s bottom case from scratches and reduce vibration noise. Each set includes all necessary feet (typically 5 per MacBook Air model) with pre-applied adhesive for easy, secure installation. The matte black finish blends seamlessly with your MacBook’s original aesthetic. Ideal for restoring worn, missing, or damaged feet—whether due to age, cleaning, or accidental removal—this is a simple, affordable way to maintain your MacBook’s functionality and appearance. Note: Surface must be clean and dry for optimal adhesion. For best results, gently warm the adhesive before applying.
The LG UltraGear 45″ 240Hz OLED Curved Gaming Monitor is designed for gamers who demand top-tier performance and stunning visuals. Its massive 45-inch curved OLED display provides an immersive gaming experience with deep blacks and vibrant colors. Firstly with a 240Hz refresh rate, this monitor delivers ultra-smooth gameplay. Combined with a 0.03ms response time, it ensures minimal motion blur and fast reactions in competitive games. Every frame is rendered with precision, giving you a serious edge in fast-paced action. The 21:9 aspect ratio and 3440 x 1440 resolution offer a wide field of view, making it perfect for immersive gaming and multitasking. Whether exploring vast open worlds or battling in intense FPS games, you get an expansive and detailed view. Equipped with HDR10 and OLED self-lit pixels, this gaming monitor delivers incredible contrast and true-to-life colors. Dark scenes appear richer, and bright scenes pop with stunning clarity. Every detail stands out, enhancing the overall gaming experience. For seamless gameplay, the LG UltraGear 45″ 240Hz OLED Curved Gaming Monitor supports AMD FreeSync Premium and NVIDIA G-SYNC. These technologies eliminate screen tearing and stuttering, ensuring smooth and fluid visuals. With multiple connectivity options, including HDMI 2.1, DisplayPort 1.4, and USB ports, this monitor is built for modern gaming rigs. It supports the latest consoles and high-end PCs, ensuring top performance across devices. In conclusion, the LG UltraGear 45″ 240Hz OLED Curved Gaming Monitor is a must-have for serious gamers. Its high refresh rate, fast response time, and stunning OLED visuals make it a top-tier choice for competitive and immersive gaming. Specifications: Display : 44.5″ OLED Resolution : 3440×1440 Ultra-WQHD Refresh Rate : 240Hz Response Rate : 0.03ms GTG Curvature : 800R
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
