The Samsung S27D300 is a 27-inch monitor designed to deliver clear and vibrant visuals for both work and entertainment. With a Full HD resolution of 1920 x 1080 pixels, it ensures sharp and detailed images. The monitor features an IPS panel, providing consistent and accurate colors across wide viewing angles. Its 100Hz refresh rate offers smoother motion, reducing blur during fast-paced scenes. The monitor supports 16.7 million colors, ensuring accurate color reproduction. Connectivity options include one HDMI port and one VGA (D-Sub) port, allowing compatibility with various devices. It also features tilt adjustment, enabling users to find a comfortable viewing angle. In terms of power consumption, the monitor uses approximately 25W during typical operation. It operates within a voltage range of 100 – 240 V at 50 – 60 Hz. Measuring 24.1 inches in width, 7.9 inches in depth, and 18.5 inches in height with the stand, the monitor weighs 6.4 pounds. Without the stand, it measures 24.1 inches in width, 1.4 inches in depth, and 14.2 inches in height. The Samsung S27D300 is a reliable choice for users seeking a monitor that balances performance and affordability, suitable for both home and office use. Specifications: Display : 27″ Resolution : 1920 x 1080 FHD Refresh Rate : 100Hz Response Rate : 5ms
The LG UltraGear 27GS50F-B 24″ Gaming Monitor brings fast performance and vivid visuals to your gaming setup. It is designed to deliver smooth and responsive gameplay, making every moment feel more intense and immersive. Moreover, its 24-inch screen size is ideal for competitive gaming while fitting comfortably on most desks. This monitor offers vibrant colors and sharp detail, which enhances your experience whether you are gaming, watching movies, or working. Additionally, the fast refresh rate and quick response time help reduce motion blur so you can enjoy fluid action without distractions. The sleek and modern design fits well into any gaming or home office environment. The LG UltraGear 27GS50F-B also includes multiple connectivity options, making it easy to connect your PC, console, or other devices. Furthermore, ergonomic adjustments allow you to tilt the screen for a comfortable viewing position during long sessions. Therefore, it is perfect for casual and competitive gamers alike. Finally, it combines responsive performance, clear visuals, and user-friendly design for everyday use. Specifications: 24-inch gaming monitor Fast refresh rate for smooth gameplay Crisp visuals with vibrant colors Multiple connectivity options Sleek and ergonomic design
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.
WiWU Skin Zero Sleeve – Ultra-thin Lycra laptop case with faux-fur lining and scratch-resistant protection, available in multiple sizes.Sleek, featherlight, and travel-ready for everyday carry without the bulk. Model: WiWU Skin Zero Sleeve Sizes: Available for 13″, 14″, and 16″ laptops Material: Eco-friendly water-resistant Lycra exterior Interior: Faux-fur lining to protect against scratches and minor bumps Design: Ultra-slim profile that fits easily into backpacks or briefcases Weight: Approximately 280–330 g, depending on size Colors: Black, Gray, Purple, Burgundy Closure: Secure magnetic or zipper closure (varies by version) Features: Lightweight, minimal branding, soft internal cushioning, stylish and durable build
Are you in search of a monitor that delivers both smooth performance and vibrant visuals? Look no further than the MSI Pro 27″ 100Hz Monitor. Designed to meet the demands of both gamers and professionals, this monitor offers a seamless viewing experience. First and foremost, let’s discuss its refresh rate. With a refresh rate of 100Hz, this monitor ensures buttery-smooth visuals, free from motion blur or screen tearing. Whether you’re gaming or working, every frame is delivered with precision and clarity. Additionally, the 27-inch display provides ample screen real estate, allowing for immersive gaming sessions or productive work environments. Say goodbye to squinting at small screens and hello to expansive viewing experiences. Transitioning to color accuracy, the MSI Pro monitor boasts vibrant and true-to-life colors, thanks to its advanced display technology. Whether you’re editing photos, watching movies, or gaming, every hue is rendered with stunning accuracy. Moreover, the monitor’s sleek and minimalist design adds a touch of sophistication to any workspace or gaming setup. Its thin bezels maximize screen space, while the adjustable stand ensures ergonomic viewing angles for maximum comfort. Furthermore, with multiple connectivity options, including HDMI and DisplayPort, this monitor seamlessly integrates with your existing setup. Whether you’re connecting a gaming console, PC, or laptop, setup is quick and hassle-free. In conclusion, the MSI Pro 27″ 100Hz Monitor is a versatile display solution that excels in both performance and aesthetics. Whether you’re a gamer, content creator, or professional, this monitor delivers an exceptional viewing experience that enhances productivity and enjoyment. Upgrade your display today and immerse yourself in the world of vibrant visuals and smooth performance. Specifications: Display : 27″ Resolution : 1920 x 1080 (FHD) Refresh Rate : 100Hz Response Rate : 1ms
A compact and durable pre-owned Dell Latitude 7480 with 14" display, 6th Gen Core i5, 8GB RAM, and 128GB SSD—ideal for light office tasks, students, or as a secure secondary business device.
The Arzopa A1 is an ultra-slim, lightweight 15.6-inch portable monitor engineered for seamless travel productivity and entertainment. Delivering crisp Full HD imagery on a premium IPS panel with integrated eye care features, it provides a hassle-free plug-and-play experience using dual full-function USB-C and Mini HDMI inputs. Complete with a built-in adjustable kickstand, it is the perfect dual-screen companion for laptops, smartphones, and gaming consoles. ✅ Full Specifications: Model: ARZOPA Type-C Portable Monitor (ARZOPA-A1) Interface / Connection: Multi-Port Input Panel: 2 x USB Type-C Full Function Ports (Supports concurrent video transmission, data, and power delivery) 1 x Mini HDMI Port (Video signal input only) 1 x 3.5mm Headphone / Audio Output Interface Interface / Connection: Multi-Port Input Panel: 2 x USB Type-C Full Function Ports (Supports concurrent video transmission, data, and power delivery) 1 x Mini HDMI Port (Video signal input only) 1 x 3.5mm Headphone / Audio Output Interface Performance / Screen Quality: Panel Type: IPS (In-Plane Switching) display with 178° wide viewing angles Resolution: Full HD 1920 x 1080p Refresh Rate: 60Hz Aspect Ratio: 16:9 Brightness: 300 cd/m² Contrast Ratio: 1200:1 Display Colors: 262K (8-bit) Color Gamut: 45% NTSC / 72% sRGB space coverage Performance / Screen Quality: Panel Type: IPS (In-Plane Switching) display with 178° wide viewing angles Resolution: Full HD 1920 x 1080p Refresh Rate: 60Hz Aspect Ratio: 16:9 Brightness: 300 cd/m² Contrast Ratio: 1200:1 Display Colors: 262K (8-bit) Color Gamut: 45% NTSC / 72% sRGB space coverage Display Technology: Features built-in HDR rendering technology to boost dynamic contrast alongside a Low Blue Light comfort filter to reduce eye fatigue. Audio: Dual built-in stereo speakers (1W x 2 configuration). Material & Build: Premium, durable metal housing constructed out of a sleek aluminum alloy framework. Design & Form Factor: Ultra-thin bezel layout boasting an integrated adjustable smart kickstand for multi-angle landscape deployment. Power Setup: Driverless plug-and-play architecture. Operates without an internal battery; runs on host device power distribution via USB-C or requires an external 5V/3A power input adapter. Compatibility: Fully compatible with MacBooks, Windows PCs/Laptops, Chromebooks, USB-C supported Android smartphones, and modern gaming consoles (Nintendo Switch, Xbox Series X/S, PS4, PS5). Dimensions: Approx. 355.6 x 220.9 x 9.14 mm (Ultra-slim 0.36-inch profile) Weight: Approx. 725 to 735 grams (1.6 lbs lightweight chassis)
Firstly the Alienware 25″ 360Hz Gaming Monitor AW2523HF is built for gamers who demand fast and smooth performance. It features a 24.5-inch Fast IPS panel with Full HD resolution for sharp visuals and vivid colors. Furthermore this gaming monitor offers a blazing 360Hz refresh rate via DisplayPort and up to 255Hz via HDMI, making motion incredibly smooth. With a 0.5ms response time, fast-paced games feel crisp and responsive with minimal blur. The display supports 99% sRGB color gamut, ensuring rich and accurate colors. It also has an anti-glare coating and 178° wide viewing angles, so your game looks great from every position. It’s compatible with AMD FreeSync Premium and G-SYNC, giving you a tear-free and fluid gameplay experience on both major GPU brands. Gaming features like Dark Stabilizer, AlienVision modes, and a built-in FPS counter give players extra control and awareness in-game. The monitor’s stand is fully adjustable with options to tilt, swivel, pivot, and adjust height for comfort during long gaming sessions. It also supports VESA mounting for flexible desk setups. For connectivity, the AW2523HF includes two HDMI 2.0 ports, one DisplayPort 1.4, four USB 3.2 Gen 1 downstream ports, a USB upstream port, headphone jack, and audio line-out. These ports make it easy to connect accessories and manage your setup neatly. In short, the Alienware 25″ 360Hz Gaming Monitor AW2523HF is a top-tier gaming monitor with extreme refresh rate, color accuracy, and gamer-friendly features. Specifications: Display : 24.5″ Fast IPS Resolution : 1920×1080 FHD Refresh Rate : 360Hz Response Time : 0.5ms
WIWU S400 Aluminum Laptop Stand Portable, Adjustable and Foldable - Silver WIWU S400 Aluminum Laptop Stand Portable, Adjustable and Foldable – Silver
The LG 34WQ650-W UltraWide 34-inch 100Hz Full HD IPS Monitor delivers immersive visuals and smooth performance for work, entertainment, and gaming. Its large 34-inch ultra-wide screen gives you extra space to multitask, watch movies, and play games with a broader field of view. Moreover, the Full HD resolution ensures clear and detailed images so your content looks sharp and vibrant. This monitor features an IPS panel that provides wide viewing angles and consistent color accuracy from nearly every angle. Additionally, the 100Hz refresh rate offers smoother motion compared to standard monitors, making gameplay and video playback feel more fluid. The sleek white design fits modern setups, whether in home offices, workstations, or gaming desks. The LG 34WQ650-W includes multiple connectivity options, making it easy to connect laptops, PCs, and consoles. Furthermore, the ergonomic tilt adjustment helps maintain comfortable viewing positions during long sessions. Therefore, it is ideal for students, professionals, and casual gamers seeking a versatile and immersive display. Finally, it combines wide visuals, smooth performance, and practical design for everyday use. Specifications: 34″ UltraWide Full HD IPS monitor 100Hz refresh rate for smooth motion Wide viewing angles with accurate colors Sleek white design with versatile connectivity Ideal for work, entertainment, and gaming
LG 27 inch 4K IPS Monitor 27UP850N-W is designed for sharp visuals, productivity, and content work. It features a 27-inch UHD IPS display with accurate color performance. Additionally, it supports HDR10 and USB Type-C connectivity. Therefore, it works well for office use, creative tasks, and media viewing. The LG 27UP850N-W delivers 3840 × 2160 resolution with a 60Hz refresh rate and 5ms response time. Moreover, it includes VESA DisplayHDR 400 and DCI-P3 95% color coverage for improved color accuracy. It also provides USB-C with up to 90W power delivery, HDMI, and DisplayPort inputs. In addition, it supports AMD FreeSync for smoother visuals during light gaming and video playback. Furthermore, it includes ergonomic adjustments such as height, tilt, and pivot support. As a result, users can maintain a comfortable viewing position during long work sessions. It also includes built-in features like Reader Mode and Black Stabilizer for eye comfort and better detail visibility. manufacturer link Specifications: 27-inch 4K UHD (3840 × 2160) IPS display VESA DisplayHDR 400 with DCI-P3 95% color gamut USB Type-C with up to 90W power delivery 60Hz refresh rate with AMD FreeSync support Height, tilt, and pivot adjustable ergonomic stand
CI03 CI03XL Battery for HP ProBook 640 G2 645 G2 650 G2 655 G2, ProBook 640 G3 645 G3 650 G3 655 G3 Laptop, P/N: HSTNN-UB6Q HSTNN-LB6T HSTNN-PB6K 801554-001 About this item 【BATTERY SPECIFICATIONS】 Type: Li-ion ‖ Capacity: 48Wh ‖ Voltage: 11.4V ‖ Model: CI03XL 【COMPATIBLE LAPTOP MODEL】For ProBook 640 G2, ProBook 640 G3, ProBook 645 G2, ProBook 645 G3, ProBook 650 G2, ProBook 650 G3, ProBook 655 G2, ProBook 655 G3 Notebook. 【PART NUMBER】CI03, CI03XL, C103XL, CIO3XL, CI03048XL, CIO3, HSTNN-UB6Q, HSTNN-LB6T, HSTNN-PB6K, HSTNN-UB6Q, HSTNN-DB7N, HSTNN-I66C-4, HSTNN-I66C-5U, HSTNN-I66C-5H, HSTNN-I67C-4, HSTNN-I67C-5, 801517-221, 801517-222, 801517-231, 801517-232, 801517-241, 801517-242, 801517-421, 801517-422,801517-541, 801517-831, 801554-001. 【MULTIPLE PRETCTION】 Don’t fall into buying cheap and unsafe batteries. All our batteries are certified by CE, and FCC for safety. Bulit-in circuit protection ensures both safety and stability.
The Alienware AW2723DF 27″ 280Hz Gaming Monitor is made for gamers who want smooth performance and sharp visuals. It features a 27-inch Fast IPS screen with QHD resolution (2560 x 1440) for detailed and vibrant images. With a 240Hz native refresh rate, overclockable to 280Hz via DisplayPort, it delivers incredibly fluid motion. Its 1ms response time keeps gameplay sharp, reducing blur during intense action. It supports AMD FreeSync Premium Pro and is G-SYNC compatible, helping to eliminate screen tearing and stuttering. This ensures a smooth experience across all types of games. The display offers 100% sRGB and 95% DCI-P3 color coverage, making colors rich and lifelike. It also supports HDR with 600-nit brightness, which improves contrast and light detail. For connectivity, it includes two HDMI 2.0 ports, one DisplayPort 1.4, four USB 3.2 Gen 1 ports, and audio out, giving you flexible connection options. A built-in USB hub helps manage your accessories with ease. The stand supports height, tilt, swivel, and pivot adjustments for ergonomic comfort. You can also mount it using VESA compatibility, giving you more control over your setup. Extra features include AlienFX lighting, Picture-in-Picture (PiP) and Picture-by-Picture (PbP) modes. These tools enhance your multitasking and customization. In short, the Alienware AW2723DF is a powerful gaming monitor that combines speed, color accuracy, and versatility for both competitive play and creative work. Specifications: Display : 27″ Fast IPS Resolution : QHD 2560 x 1440 Refresh Rate : 280Hz Response Time : 1ms
Ready to elevate your digital workspace to new heights? Meet the ViewSonic 27″ 60Hz Touch Monitor TD2760, designed to revolutionize your computing experience. With its intuitive touch functionality, this monitor offers unparalleled convenience and versatility. Transitioning smoothly between tasks is effortless with the TD2760’s responsive touch screen. Whether you’re browsing the web, editing documents, or creating digital art, interaction feels natural and intuitive. Furthermore, its expansive 27-inch display provides ample screen real estate for multitasking and immersive viewing experiences. Dive into your work or entertainment content with crisp, clear visuals and vibrant colors. Moreover, the TD2760’s ergonomic design ensures comfortable viewing for extended periods. Easily adjust the monitor’s tilt angle to suit your preferred working position, reducing strain on your neck and eyes. In addition, connectivity options such as HDMI and USB-C offer seamless compatibility with a variety of devices, including laptops, desktops, and smartphones. Effortlessly mirror or extend your screen to enhance productivity or share content with ease. Transitioning to the touch aspect, the TD2760’s precise touch response allows for accurate input, whether you’re tapping, swiping, or drawing. Navigate menus, annotate documents, or play touchscreen-enabled games with unparalleled precision and responsiveness. In conclusion, the ViewSonic 27″ 60Hz Touch Monitor TD2760 is a game-changer for digital professionals and enthusiasts alike. With its seamless touch functionality, expansive display, and ergonomic design, it redefines the way you interact with your digital world. Upgrade your workspace today and experience the difference firsthand. Specifications: Display : 27″ VA Resolution : FHD(1920×1080) Refresh Rate : 60Hz Response Rate : 6ms
BenQ RE6504 65” 4K UHD Interactive Flat Panel with Android 13 is a large interactive display designed for classrooms, meeting rooms, and training environments. It combines a 4K touchscreen, built-in Android system, and collaboration tools for interactive presentations. It features a 65-inch IPS panel with 3840 × 2160 (4K UHD) resolution. Therefore, it delivers sharp visuals and wide viewing angles for group interaction. In addition, it supports up to 40-point touch input for multi-user collaboration and writing. Moreover, the panel runs Android (EDLA certified, Android 14/13 depending on region) with built-in apps and Google services support. As a result, users can install apps, browse content, and run teaching or presentation tools directly on the display without an external PC. The RE6504 uses precision IR touch technology. Therefore, it provides fast and accurate writing with low delay. In addition, it includes anti-glare and tempered 9H glass for durability and better visibility in bright rooms. Furthermore, it includes multiple connectivity options such as HDMI, USB, USB-C, OPS slot, and LAN. As a result, it supports laptops, media players, and modular PC systems for flexible installation. It also includes built-in speakers and collaboration software tools. Therefore, it supports presentations, whiteboarding, screen sharing, and remote teaching or meeting scenarios. Finally, the BenQ RE6504 delivers a large 4K interactive workspace with Android integration, multi-touch control, and strong connectivity for education and business use. Specifications: Display: 65-inch IPS panel with 3840×2160 4K UHD resolution Touch: Up to 40-point multi-touch for collaboration System: Built-in Android (EDLA support with Google services) Glass: Anti-glare 9H tempered glass for durability Connectivity: HDMI, USB, USB-C, OPS slot, and LAN support
A compact and powerful pre-owned HP ProBook x360 435 G8 with 13.3" non-touch display, AMD Ryzen 7 5800U, 16GB RAM, and 512GB SSD—offering strong performance and 360° versatility without touch, ideal for professionals and students on the go.
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
Reliable, secure, and built for productivity—the Lenovo ThinkPad T14 features a 10th Gen Intel Core i5 processor, 16GB RAM, and a fast 256GB SSD in a durable,14-inch business laptop.
The Cudy AC1200 dual band WiFi extender boosts and extends your wireless coverage with speeds up to 1200Mbps across 2.4GHz and 5GHz bands. Ideal for eliminating dead zones, it provides stronger and more stable WiFi for streaming, gaming, and online work in every corner of your home or office. The Cudy AC1200 Dual Band WiFi Extender is designed to expand your existing WiFi network and deliver stronger coverage where your router signal is weak. With support for both 2.4GHz and 5GHz frequencies, it provides balanced performance for browsing, streaming, video calls, and gaming. Easy to set up and compatible with most routers, this extender is the perfect solution for improving WiFi connectivity in homes, offices, and multi-room spaces. AC1200 Dual Band Speed: Up to 1200Mbps total for smooth browsing and streaming 2.4GHz + 5GHz Support: Better performance and reduced interference Eliminates WiFi Dead Zones: Extends coverage to hard-to-reach rooms Stable Connection: Ideal for HD streaming, gaming, and online meetings Universal Compatibility: Works with most WiFi routers and access points Easy Setup: Simple installation with WPS / web configuration (model dependent) Compact Plug-In Design: Saves space and fits easily in any outlet Multiple Modes: Extender / Access Point (depending on model) Perfect for homes, offices, cafés, and apartments needing stronger WiFi coverage. Works with most routers and improves signal strength for devices like smartphones, laptops, smart TVs, consoles, and IP cameras.
The ViewSonic VA270-H 27″ FHD 100Hz Monitor delivers smooth and clear visuals for daily work and entertainment. Its Full HD resolution shows sharp text and clean image details. The large 27-inch screen gives more space for multitasking. This helps improve focus and comfort during long work sessions. Moreover, the ViewSonic VA270-H 27″ FHD 100Hz Monitor features a fast 100Hz refresh rate for smoother motion. Scrolling feels softer and more natural. Videos play with less blur and clearer movement. As a result, the viewing experience feels more comfortable. In addition, the monitor uses IPS panel technology for wide viewing angles. Colors stay clear and accurate from all sides. This helps during shared screen use and group work. The image remains bright and stable at every angle. Furthermore, the ViewSonic VA270-H 27″ FHD 100Hz Monitor includes eye comfort features for long daily use. The low blue light mode helps reduce eye strain. The flicker-free design supports long viewing without discomfort. These features protect your eyes during extended screen time. Also, the monitor provides flexible connection options for easy setup. It includes HDMI support for modern devices. You can connect laptops, desktops, and media players with ease. Switching between devices becomes fast and simple. In addition, the slim bezel design gives a clean and modern look. It fits well in both home and office spaces. The stand supports tilt adjustment for better viewing comfort. Wall mounting is also supported for clean desk setups. Moreover, the display works well for office work, browsing, and video streaming. Text appears clear and easy to read. Daily tasks feel more organized and comfortable. The large screen improves workflow and focus. Overall, the ViewSonic VA270-H 27″ FHD 100Hz Monitor offers clarity, smooth motion, and daily comfort. It supports work, study, and entertainment with ease. This monitor is a smart choice for users who want smooth performance and a large display. Specifications: Display : 27″ IPS Resolution : FHD 1920 x 1080 Refresh Rate : 100Hz Response Time : 1ms
