New 01AV423 01AV424 01AV422 SB10K97579 SB10K97581 11.4V 24Wh 2080mAh Laptop Battery Compatible with Lenovo ThinkPad T470 61 Series Notebook About this item Condition: New Voltage: 11.4V Capacity: 24Wh/2100mAh Replace Part Number: 01AV423 01AV424 SB10K97581 01AV422 SB10K97579 Fit for: LENOVO Thinkpad T470 T570 P51S 61 Series Laptop
*Additional 8$ Delivery Fee Outside Beirut Due to The Packaging Size The ASUS ROG SL400C Destrier Ergo Core gaming chair gives you strong comfort and support for long play or work sessions. First, its ergonomic design helps keep your spine and neck aligned with adjustable headrest and lumbar support. In addition, 3D armrests rotate 360° and lift up to let you find the best arm position for PC or mobile play. You can fine-tune your seat height, seat depth, and backrest recline up to three angles, so you sit how you like. The breathable mesh back and cushioned seat help reduce heat build-up during long gaming hours. Silent 75 mm casters let you roll smoothly across most floors, and the heavy base keeps the chair steady. This chair supports a wide range of body types with a recommended user height range and weight capacity that suits most players. Its futuristic, cyborg-inspired look adds flair to any setup, while strong materials give long-lasting use and comfort. Specifications: Adjustable Items : Armrest 14cm vertical adjustment, Lumbar 7cm vertical + 1cm depth adjustment Base Type : 5 star aluminum alloy base Armrest : 3D with 360 fully rotate Gas Lift : Class 4 Gas Lift (80mm) Weight Limit : 136Kg
The ViewSonic VA2723-2K-HD 27″ QHD 100Hz Monitor gives sharp, high-resolution visuals for work, games, and media. Its QHD display shows clear, detailed images for photos, videos, and documents. The 27-inch size offers wide viewing space for multitasking and productivity. Moreover, the ViewSonic VA2723-2K-HD 27″ QHD 100Hz Monitor features a smooth 100 Hz refresh rate. This makes motion look fluid and clean on screen. Scrolling, movies, and games feel smoother and more pleasant. This reduces blur during fast scenes. In addition, the monitor uses a bright and vibrant panel for strong color accuracy. Colors stay true from various viewing angles. This helps media, design work, and daily tasks look natural and appealing. It’s great for creators, students, and professionals. Furthermore, the ViewSonic VA2723-2K-HD 27″ QHD 100Hz Monitor includes eye-care technology for comfortable long use. It offers Flicker-Free display to reduce screen flicker. The blue light filter helps lower eye strain. This gives you safer viewing during work or study sessions. Also, the monitor supports HDMI and DisplayPort connections for easy setup. You can connect laptops, desktops, and consoles without hassle. The simple plug-and-play design means less time configuring. This suits home, office, and gaming setups. The design of the ViewSonic VA2723-2K-HD 27″ QHD 100Hz Monitor is modern and minimal. The slim frame fits well on desks of different sizes. The clean look blends into professional and home environments alike. The solid build gives you durable and long-lasting performance. Overall, the ViewSonic VA2723-2K-HD 27″ QHD 100Hz Monitor delivers a great balance of clarity, smoothness, and eye comfort. It boosts productivity, improves media quality, and supports long use. This monitor is ideal for anyone seeking quality and comfort in one screen. Specifications: Display : 27″ IPS Resolution : 2560×1440 Refresh Rate : 100Hz Response Time : 1ms
Remax F27 Fonzyr Desktop Fan – 5 W rechargeable fan with 360° adjustable airflow and multi-installation options.Compact (187×206 mm), lightweight, with fast Type-C charging (~2 h) and built-in 1,200 mAh battery. Model: Remax F27 Fonzyr Series Circulation Desktop Fan Power: 5 W, operates on 5 V/1 A power supply Rotation: 360° adjustable airflow for full-range ventilation Battery: Built-in 1,200 mAh rechargeable battery; Type-C charging, ~2 hours charging time Dimensions & Build: Approx. 187 × 206 mm, lightweight ABS plastic housing (~697 g) Installation: Designed for desktop use, wall mounting, or hanging—ideal for multi-location placement
The Deadskull PlaySeat Racing Simulator offers immersive, authentic racing seat quality for gaming enthusiasts. It is engineered with input from professional racing drivers for realistic driving posture. Moreover, it uses premium Alcantara upholstery, like actual racing car seats, for comfort and durability. Also, it supports all major platforms: PlayStation, Xbox, Nintendo Switch, PC, and Mac systems. In addition, the steel frame is fully adjustable to suit different heights and preferences. Besides that, Deadskull offers a patented foldable design that saves space when not in use. Furthermore, it is quick and easy to assemble with included tools and instructions. It accommodates drivers from 120 to 220 cm tall and weights between 20 to 122 kg. Also, seat dimensions are 130 × 50 × 98 cm, and it weighs around 19.8 kg. While wheel and pedals are sold separately, the rig supports popular brands like Logitech and Thrustmaster. Then, you can fold it away easily after a session and free up room. Also, it suits both kids and adults for shared use in a household. Furthermore, its black frame offers a sleek and professional aesthetic. Consequently, it enhances realism and immersion in sim racing setups. As a result, the Deadskull PlaySeat is an ideal entry-level rig for serious sim racers. In conclusion, it balances comfort, flexibility, and realism for its price category. Finally, it makes a solid stepping‑stone for gamers entering the world of sim racing.
MacBook Pro A1706 / A1708 Display Assembly (Space Gray) Compatibility : MacBook Pro 2017 13″ A1708 (EMC 3164 MacBookPro14,1) 2.3 GHz A1708 (EMC 3164 MacBookPro14,1) 2.5 GHz A1706 (EMC 3163 MacBookPro14,2) 3.1 GHz A1706 (EMC 3163 MacBookPro14,2) 3.3 GHz A1706 (EMC 3163 MacBookPro14,2) 3.5 GHz MacBook Pro 2016 13″ A1706 (EMC 3071 MacBookPro13,2) 2.9 GHz A1706 (EMC 3071 MacBookPro13,2) 3.1 GHz A1706 (EMC 3071 MacBookPro13,2) 3.3 GHz A1708 (EMC 2978 MacBookPro13,1) 2.0 GHz A1708 (EMC 2978 MacBookPro13,1) 2.4 GHz
WiWU Minimalist Laptop Handbag – Lightweight, water-resistant bag with soft interior padding, shock protection, and dual compartments.Available in 14″ and 15.6″ sizes, perfect for secure and stylish daily laptop carry. Model: WiWU Minimalist Laptop Handbag Material: Water-resistant polyester exterior with a soft faux-fur padded interior Available Sizes: 14″ and 15.6″ versions to accommodate most laptops Protection: Built-in anti-collision padding and 360° all-around corner protection Compartments: Main laptop compartment (soft-lined) Front organizer section with inner pockets for cables, chargers, phone, and accessories Compartments: Main laptop compartment (soft-lined) Front organizer section with inner pockets for cables, chargers, phone, and accessories Carrying Options: Top handles for hand carry Detachable shoulder strap Luggage strap for trolley attachment Carrying Options: Top handles for hand carry Detachable shoulder strap Luggage strap for trolley attachment Design Features: Durable YKK zippers, reinforced corners, slim profile Weight: Approx. 703 g (14″), 884 g (15.6″) Use Case: Ideal for work, study, travel, and everyday protection of devices
AOC 27G40E 27-inch 180Hz gaming monitor delivers smooth performance for fast-paced gaming with responsive visuals and modern display features. It is designed for users who want fluid gameplay and reliable everyday performance. Additionally, it features a 27-inch Fast IPS panel. This panel provides wide viewing angles and consistent color accuracy, so it improves both gaming and general use. Moreover, the monitor supports a 180Hz refresh rate with 0.5ms MPRT response time. As a result, it delivers smoother motion and reduces blur during competitive gameplay. The display offers Full HD resolution (1920 × 1080). Therefore, it allows higher frame rates and stable performance, especially in esports titles. In addition, it includes Adaptive Sync and G-SYNC compatibility. This reduces screen tearing and stuttering, so gameplay stays smooth and responsive. Furthermore, it supports HDR10 and gaming features such as Shadow Control and low input lag mode. These features improve visibility and responsiveness during gameplay. The monitor also includes HDMI and DisplayPort connectivity with a slim gaming design. It supports easy setup for PCs and consoles. AOC 27G40E 27-inch 180Hz gaming monitor provides fast refresh performance, responsive gameplay, and essential features for competitive and casual gamers. Specifications: 27-inch Fast IPS panel with wide viewing angles 180Hz refresh rate for ultra-smooth gameplay 0.5ms MPRT response time for reduced motion blur Adaptive Sync and G-SYNC compatible support Full HD 1920 × 1080 resolution for high FPS gaming
The Mars Gaming MGC-ERGOPLUS Ergonomic Chair offers strong comfort for long hours of sitting. It supports your back with an ergonomic design. Also, it keeps your posture steady during work or gaming. Because of this support, you feel better throughout the day. The Mars Gaming MGC-ERGOPLUS Ergonomic Chair uses high-quality materials for daily use. The frame stays firm under pressure. In addition, the breathable fabric keeps you cool while you focus. The seat cushion feels soft yet supportive. Therefore, you can sit for long periods without discomfort. This chair includes easy adjustments. For example, you can lift or lower the seat smoothly. You can also tilt the backrest for more comfort. Moreover, the armrests adjust to match your desk height. As a result, you maintain a natural sitting position. This helps reduce stress on your neck and shoulders. The Mars Gaming MGC-ERGOPLUS Ergonomic Chair fits both gaming rooms and offices. Its clean style looks modern and neat. Even more, the strong wheels move softly on different floors. This makes the chair very practical for daily activity. Many people choose this chair for long sessions. The comfort stays consistent even after many hours. Besides that, the ergonomic build helps improve focus and energy. So the chair becomes a useful partner in your tasks. In conclusion, the Mars Gaming MGC-ERGOPLUS Ergonomic Chair offers comfort, strength, and great value. It improves posture and reduces strain. It also adapts easily to your needs. With all these benefits, it becomes a smart choice for gamers and workers. Specifications: Adaptive dynamic lumbar support Mulch Adjustable height between 115-125 cm Folding armrests and adjustable headrest
HP P22V G5 Monitor Overview The HP P22V G5 is a 22-inch Full HD monitor designed for daily work and home use. It offers reliable performance and a clean design. As a result, it suits offices, students, and remote workers. 22-Inch Full HD Display This monitor features a 22-inch Full HD resolution. Therefore, text appears sharp and easy to read. Moreover, images look clear and well-defined. Because of this, it supports long working sessions comfortably. In addition, the screen size fits well on most desks. As a result, it saves space without sacrificing clarity. 75Hz Refresh Rate for Smooth Viewing The monitor supports a 75Hz refresh rate. As a result, scrolling feels smoother than standard displays. Furthermore, everyday tasks look more fluid. This makes it suitable for office work and casual entertainment. Eye Comfort and Productivity The HP P22V G5 includes eye comfort features. Therefore, it helps reduce eye strain during long use. In addition, the anti-glare screen improves visibility. As a result, users stay focused throughout the day. Connectivity and Compatibility This monitor includes HDMI and VGA ports. As a result, it connects easily to modern and older devices. Moreover, it supports a wide range of PCs and laptops. Therefore, setup is quick and simple. Design and Mounting Options The monitor features a clean and professional design. In addition, it supports VESA mounting. As a result, users can create a flexible workspace. Everyday Use and Reliability This monitor delivers stable performance for daily tasks. Moreover, it focuses on durability and efficiency. In conclusion, it is a practical choice for work environments. Specifications: Display : 21.45″ VA Resolution : FHD (1920 X 1080) Refresh Rate : 75 Hz Response Rate : 5ms GtG
The HUAWEI IdeaHub Board 2 IHB2-65SU is a 65-inch intelligent collaboration display designed for meetings, classrooms, and hybrid work environments. It combines a 4K UHD interactive touchscreen with built-in collaboration tools for writing, presenting, and video communication. Additionally, it supports smooth interaction for real-time teamwork. Moreover, it features a 65-inch 4K (3840 × 2160) infrared multi-touch screen with up to 20 touch points. Therefore, users can write and interact accurately during meetings and lessons. Furthermore, Huawei designs it with ultra-low writing latency of around 16–25 ms. So, writing feels natural and responsive like a real whiteboard. It also includes anti-glare and zero-gap bonding for clearer visuals. In addition, it integrates a 4K display system with built-in speakers and microphone support. Therefore, it improves audio-visual communication for hybrid meetings and presentations. It also supports dual Wi-Fi and wireless projection from multiple devices. Also, it runs on Android-based system support with optional Windows OPS integration. So, it fits different enterprise IT environments and meeting setups. Overall, the Huawei IdeaHub Board 2 IHB2-65SU delivers interactive 4K collaboration, smooth writing performance, and flexible connectivity for modern workplaces and education spaces. Specifications: 65-inch 4K UHD infrared touch display Up to 20-point multi-touch support Ultra-low writing latency (~16–25 ms) Built-in speakers and conferencing support Wireless projection with dual Wi-Fi connectivity
The Samsung 32″ 60Hz Smart Monitor M5 M50D is an all-in-one solution for work, entertainment, and streaming. Whether you need a monitor for productivity or to watch your favorite shows, this monitor has you covered. With a 32-inch Full HD display, the Samsung M5 M50D delivers crisp and clear visuals for both work and play. Its 60Hz refresh rate ensures smooth motion, whether you’re working on documents, browsing, or streaming videos. What makes the Samsung M5 truly smart is its built-in smart features. With access to popular streaming apps like Netflix, YouTube, and more, you can enjoy entertainment without needing a computer. Simply connect to Wi-Fi and start streaming your favorite content. This smart monitor also features Samsung DeX, allowing you to connect your smartphone for a full desktop experience. It’s perfect for multitasking and increasing productivity without needing additional hardware. With its slim design and minimalist stand, the Samsung 32″ Smart Monitor M5 fits seamlessly into any workspace or home setup. The monitor’s versatile connectivity includes HDMI and USB ports, making it easy to connect your devices. In addition to its smart features, the Samsung M5 M50D offers Adaptive Picture technology. This adjusts the screen brightness based on ambient lighting, reducing eye strain and making viewing comfortable at any time of day. In conclusion, the Samsung 32″ 60Hz Smart Monitor M5 M50D offers a versatile solution for work, entertainment, and streaming. Upgrade your setup with this smart monitor and enjoy a seamless, all-in-one experience. Specifications: Display : 32″ VA Resolution : FHD (1920×1080) Refresh Rate : 60Hz Response Time : 4ms GTG
The Samsung 77 OLED S85F 4K Vision AI Smart TV QA77S85FAEXTW delivers a premium home cinema experience built on advanced OLED technology. It produces deep blacks, rich colors, and strong contrast, so movies, sports, and games look more realistic on the large 77-inch screen. OLED technology controls each pixel individually, so every detail appears with high precision. This improves dark scenes by keeping blacks deep and detailed, while bright areas stay clean and accurate. As a result, the picture stays balanced in both bright and dark environments. Samsung Vision AI improves picture and sound in real time. It analyzes each scene and adjusts brightness, color, and sharpness automatically. Therefore, the Samsung 77 OLED S85F 4K Vision AI Smart TV QA77S85FAEXTW always delivers optimized visuals without manual settings. In addition, AI upscaling improves lower-resolution content closer to 4K quality. HDR expands contrast and color depth, making visuals more lifelike. Fast motion also appears smoother and clearer, which improves sports and action viewing. The Smart TV system gives access to streaming apps, games, and smart home features. It runs smoothly and is easy to navigate. In addition, the slim design with thin bezels gives the Samsung 77 OLED S85F 4K Vision AI Smart TV QA77S85FAEXTW a modern, premium look. Overall, this Samsung OLED TV combines strong picture quality, AI optimization, and smart connectivity for a high-end viewing experience. Specifications: OLED technology delivers deep blacks and rich color accuracy 77-inch 4K display provides immersive large-screen viewing Vision AI optimizes picture and sound automatically in real time HDR enhances contrast, brightness, and color depth Smart TV platform supports streaming apps and smart features
The ASUS ProArt PA329CRV 32″ 4K Professional Monitor delivers amazing clarity for creative work. It offers a large 32-inch screen with sharp 4K detail. Every image looks clean and accurate. This makes it ideal for editing and design projects. Moreover, the ASUS ProArt PA329CRV 32″ 4K Professional Monitor includes factory-calibrated color accuracy. It shows precise colors for photos, videos, and artwork. The wide color gamut helps you view rich and natural tones. This ensures professional results in every task. In addition, the monitor features HDR support. It improves brightness, contrast, and depth in your visuals. Your projects look more realistic and detailed. This boosts your productivity and viewing experience. Furthermore, the ASUS ProArt PA329CRV 32″ 4K Professional Monitor includes a USB-C port. It provides display output, data transfer, and power delivery. This makes your workspace cleaner and more organized. It is perfect for creators using laptops. Also, the monitor offers an ergonomic stand. You can tilt, turn, pivot, or adjust the height easily. This helps you work comfortably for long hours. The design supports healthy posture and better workflow. The slim and modern look of the ASUS ProArt PA329CRV 32″ 4K Professional Monitor fits any studio. The thin bezels make multi-monitor setups cleaner. The build quality feels strong and long lasting. This makes it a reliable tool for professionals. Overall, the ASUS ProArt PA329CRV 32″ 4K Professional Monitor delivers accuracy, clarity, and productivity in one display. It supports creative work with true-to-life colors and advanced features. It is a great choice for editors, designers, and photographers who need perfect visuals. Specifications: Display : 32″ IPS Resolution : 4K Refresh Rate : 60Hz Response Time : 5ms Fully Adjustable
Acer Nitro QG241YBII 23.6 Inch Gaming Monitor LED Full Hd Screen Size 23.8 Inches Display Resolution Maximum 1920×1080 Brand Acer Special Feature Full HD Refresh Rate 75 Hz Specifications: Acer Nitro QG241YBII 23.6 Inch Gaming Monitor LED Full Hd Screen Size 23.8 Inches Display Resolution Maximum 1920×1080 Brand Acer Special Feature Full HD Refresh Rate 75 Hz
In the landscape of monitors, the ViewSonic VX3218C-2K stands out as a cutting-edge solution, offering immersive visual brilliance and advanced features for an unparalleled viewing experience. Transitioning to its key features, the VX3218C-2K excels in providing a stunning 2K resolution. This monitor is designed to deliver crisp and detailed visuals, ensuring a visually captivating experience for work, gaming, or entertainment. Moreover, this display impresses with its sleek and modern design. The ViewSonic VX3218C-2K not only enhances the aesthetics of your workspace but also ensures a slim profile and minimal bezels, creating an immersive viewing environment. In addition to its functionality, the VX3218C-2K offers user-friendly controls and versatile connectivity options, ensuring a seamless and adaptable experience. This monitor effortlessly adapts to various settings, providing flexibility for different viewing preferences. Furthermore, ViewSonic’s commitment to user satisfaction is evident in the VX3218C-2K’s enhanced color technology and eye-care features. It’s a reliable companion for extended viewing sessions, offering both visual excellence and comfort. In conclusion, the ViewSonic VX3218C-2K redefines immersive brilliance, combining high-resolution visuals, sleek design, and user-friendly features. Elevate your viewing experience effortlessly with the VX3218C-2K – your gateway to an immersive and captivating visual journey! Specifications Curve : 1500R Refresh Rate : 165Hz Response Rate : 1ms Ultra-Fast Input Technology : AMD FreeSync Premium ViewMode: Game/Movie/Web/Text/Mono Speaker : 2W Dual Speakers Colors : HDR10 Input : HDMI
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
*Additional 8$ Delivery Fee Outside Beirut Due to The Packaging Size The Fantech GC191 Gaming Chair (Crimson Red) is a high-back gaming chair built with a steel frame, PU leather, and foam cushioning for basic ergonomic support during gaming or office use. It uses a Class 4 hydraulic gas lift for height adjustment. As a result, the seat height can be adjusted to match different desk setups. In addition, it includes a multi-tilt mechanism that allows reclining for more relaxed seating positions. The chair comes with 2D adjustable armrests. Therefore, users can adjust both height and angle to improve arm positioning while gaming or working. It includes detachable head and lumbar pillows. These support the neck and lower back during long sessions and can be repositioned or removed depending on comfort preference. A reinforced steel base with PU caster wheels provides movement and stability. Also, the chair supports a recline range of around 130° to 170°, depending on adjustment. Overall, the Crimson Red version is the same as other GC191 variants, with only the color differing. Specifications: Steel frame construction with PU leather and foam padding Class 4 gas lift height adjustment 2D adjustable armrests (height and angle) Reclining backrest with multi-tilt mechanism Detachable head and lumbar support cushions
Philips 27M2N3200FQ is a 27-inch Full HD Fast IPS gaming monitor. It delivers a 1920 × 1080 resolution with a 200Hz refresh rate and 1ms response time. Additionally, it uses a Fast IPS panel for wide viewing angles and consistent color performance. Moreover, it supports Adaptive Sync for smoother visuals with reduced tearing. It includes SmartImage Game mode to optimize display settings for different game types. Furthermore, it features Flicker-Free technology and LowBlue Mode for reduced eye strain during long use. It also includes HDMI and DisplayPort connectivity for display input options. The Philips 27M2N3200FQ monitor provides high refresh Fast IPS performance for smooth gaming and everyday use. Specifications: 27-inch Fast IPS panel with Full HD 1920 × 1080 resolution 200Hz refresh rate for smooth motion display 1ms response time for reduced blur Adaptive Sync support for smoother visuals Flicker-Free technology and LowBlue Mode
The Samsung Odyssey G3 24″ 180Hz Gaming Monitor delivers smooth gameplay with a high refresh rate. It ensures ultra-fast performance for competitive gaming. The 180Hz refresh rate reduces motion blur, making fast-paced action more fluid. Every frame appears crisp and clear, giving players an edge in fast-action games. With a 1ms response time, this gaming monitor eliminates lag and ghosting. It provides instant reactions, helping gamers stay ahead in intense battles. The quick response ensures accurate movements and smooth transitions between scenes. The Full HD 1920×1080 resolution offers sharp and detailed visuals. Every image appears clear, enhancing the gaming experience. The high contrast ratio improves depth and realism in darker scenes. Whether exploring dark landscapes or engaging in bright battlefields, the visuals remain immersive. The Samsung Odyssey G3 24″ 180Hz Gaming Monitor features AMD FreeSync Premium for tear-free gaming. It synchronizes the monitor’s refresh rate with the graphics card. This reduces screen tearing and stuttering, ensuring smooth gameplay. Even in demanding scenes, the visuals stay seamless. Designed with an ergonomic stand, this monitor offers height adjustment, tilt, and swivel options. Gamers can adjust the screen for maximum comfort during long gaming sessions. The slim bezel design creates a modern and immersive viewing experience. The monitor includes multiple connectivity options, including HDMI and DisplayPort. This ensures compatibility with gaming consoles, PCs, and other devices. The versatile connectivity makes it a great choice for any gaming setup. The Samsung Odyssey G3 24″ 180Hz Gaming Monitor is perfect for gamers seeking speed, clarity, and immersion. Its fast refresh rate, sharp visuals, and ergonomic design make it an excellent choice. Every game feels smoother, sharper, and more immersive. Specifications: Display : 24″ VA Resolution : FHD (1,920 x 1,080) Refresh Rate : 180Hz Response Rate : 1ms
