Genuine-spec Touch Bar assembly with integrated flex cable for 2020 MacBook Pro 13″ models (A2251, A2289, A2338)—restores full Touch ID and Touch Bar functionality with OEM-level fit and performance. Compatible With: MacBook Pro 13″ (2020): A2251 (Intel Core i5/i7, two Thunderbolt ports) A2289 (Intel Core i5/i7, four Thunderbolt ports) A2338 (Apple M1 chip, two Thunderbolt ports) MacBook Pro 13″ (2020): A2251 (Intel Core i5/i7, two Thunderbolt ports) A2289 (Intel Core i5/i7, four Thunderbolt ports) A2338 (Apple M1 chip, two Thunderbolt ports) A2251 (Intel Core i5/i7, two Thunderbolt ports) A2289 (Intel Core i5/i7, four Thunderbolt ports) A2338 (Apple M1 chip, two Thunderbolt ports) Includes: Complete Touch Bar module with integrated flex cable, Touch ID sensor, and ambient light sensor—ready for direct connection to the logic board. Functionality: Fully restores dynamic Touch Bar controls, system functions, app shortcuts, and Touch ID (fingerprint authentication and power button). OEM-Quality Build: Matches Apple’s original design in responsiveness, finish, and sensor alignment—ensures seamless integration with macOS. Color Options: Available in Space Gray and Silver to match your MacBook’s top case (confirm your model’s color before ordering). Installation Note: Requires full top case disassembly and careful handling of adhesive and connectors. The flex cable routes under the speakers and connects near the logic board—precision is essential. Recommended for experienced technicians.
Haixun F20 Barcode Reader – USB 2D handheld scanner supports QR, PDF417, and 1D barcodes.Fast and reliable for retail, inventory, and logistics with plug-and-play setup. Model: Haixun F20 Type: 2D Handheld Barcode Scanner Supported Codes: 1D: EAN-13, UPC-A, Code 39, Code 128, Codabar, etc. 2D: QR Code, PDF417, DataMatrix, etc. Supported Codes: 1D: EAN-13, UPC-A, Code 39, Code 128, Codabar, etc. 2D: QR Code, PDF417, DataMatrix, etc. Sensor Type: CMOS imaging sensor Interface: USB (Plug and Play, no driver needed) Scan Mode: Manual trigger / Continuous / Auto-sensing Scan Speed: Up to 300 scans/sec Resolution: ≥ 4mil (0.1mm) Light Source: Red LED + White fill light Compatibility: Windows, Android, macOS, Linux Design: Ergonomic grip for long use Durable ABS plastic body Design: Ergonomic grip for long use Durable ABS plastic body Cable Length: Approx. 1.5 – 2 meters Power Supply: 5V (via USB) Applications: Retail, Warehouse, POS, Inventory, Logistics
Are you in search of a high-quality monitor to elevate your visual experience? Look no further than the ViewSonic VA2409-MHU 24″ Monitor. With its impressive features and sleek design, it’s the perfect addition to any workspace or entertainment setup. Transitioning to its core, the ViewSonic VA2409-MHU boasts a vibrant 24-inch display that delivers crisp and clear visuals. Whether you’re gaming, watching movies, or working on creative projects, you’ll enjoy an immersive viewing experience. Its sleek and modern design adds a touch of elegance to any environment. With its slim bezels and compact footprint, it fits seamlessly into any workspace, saving valuable desk space while maximizing screen real estate. Moving on to its performance, the ViewSonic VA2409-MHU features a 75Hz refresh rate, ensuring smooth and fluid motion for an enhanced gaming and multimedia experience. Say goodbye to screen tearing and stuttering, and hello to silky-smooth visuals. Furthermore, with Full HD resolution, this monitor delivers stunning clarity and detail, bringing your content to life with vibrant colors and sharp imagery. Whether you’re editing photos, watching videos, or browsing the web, every detail pops with incredible precision. Connectivity is key, and the ViewSonic VA2409-MHU doesn’t disappoint. With a range of ports including HDMI and VGA, you can easily connect to your favorite devices such as laptops, desktops, gaming consoles, and more. Plus, its built-in speakers provide immersive audio without the need for external speakers. In summary, the ViewSonic VA2409-MHU 24″ Monitor offers the perfect blend of performance, style, and affordability. Upgrade your visual experience today with this versatile and feature-packed monitor. Specifications: Display : 24″ IPS Built-In Speaker Resolution : FHD (1920 x 1080) Refresh Rate : 75Hz Response Rate : 3ms(GTG)
BATTERY DELL J60J5 7.6V 55Wh Battery Compatible with Dell Latitude E7470 E7270 7470 7270 451-BBSY 451-BBSX 451-BBSU WYWJ2 R1V85 MC34Y 242WD PDNM2 1W2Y2 GG4FM F1KTM NJJ2H 5F08V P61G001 P26S001 J6OJ5 Laptop Battery About this item SPECIFICATION : Model Name: Standard Rechargeable Li-ion battery Type J60J5 ; Device Type: Notebook battery; Battery Type: Lithium ion; Voltage : 7.6V; Capacity : 55Wh; Cells: 4-cell; Dimensions about 9.37×4.17×0.24in; Weight: About 11OZ / 0.69lb; Condition : 100 % New; Packages includes: 1PC J6OJ5 laptop battery(with free screwdrivers for easy installation) COMPATIBILITY : 7.6V 55 WHr 4-Cell Lithium-Ion battery replace manufacturer part J60J5 J6OJ5 451-BBSX 451-BBSY 451-BBSU R1V85 WYWJ2 MC34Y 0MC34Y 242WD PDNM2 1W2Y2 0F1KTM F1KTM NJJ2H GG4FM 5F08V P61G P61G001 P26S P26S001 battery designed for Dell Latitude E7270 Latitude E7470 7270 7470 Series laptop. SECURITY: ECHEER 55Wh 4-cell J60J5 batteries have passed strict intelligent detection, such as short circuit protection, over-voltage protection, discharge protection, and over-current protection, which is very important for the battery’s use cycle and safety. Also, CE, FCC, and RoHS are certificated. Every one of our replacement notebook batteries is tested to meet OEM specifications.
The Lenovo G34W-30 34″ Monitor delivers immersive visuals and smooth performance for gaming, streaming, and multimedia.It features a 34-inch WQHD curved display that shows sharp details and vibrant colors. Moreover, its high refresh rate ensures fluid motion during fast-paced games. This monitor uses a VA panel for strong contrast and wide viewing angles. Additionally, the fast response time reduces blur and ghosting for competitive gaming. The curved design and anti-glare screen enhance immersion and reduce reflections in bright environments. HDMI and DisplayPort inputs allow easy connection to PCs, laptops, and gaming consoles. Furthermore, tilt adjustment lets you find a comfortable viewing angle during long sessions. Low blue light and flicker-free technologies help reduce eye strain over extended use. This display is ideal for gamers, streamers, and home users. Therefore, it supports competitive gaming, media streaming, and productivity tasks. Finally, it combines immersive visuals, fast performance, and comfort features for daily use. Specifications: Screen Size: 34″ WQHD curved VA panel Resolution: 3440 × 1440 Refresh Rate: High for smooth motion Ports: HDMI + DisplayPort Features: Anti-glare, low blue light, flicker-free eye care
The MSI Pro MP161 E2 15.6″ 60Hz Portable Monitor is a lightweight and versatile display for professionals and gamers. It offers a compact design, making it easy to carry anywhere. This portable monitor features a 15.6-inch Full HD display with a resolution of 1920 x 1080. The 60Hz refresh rate ensures smooth visuals for work, entertainment, and gaming. The IPS panel delivers vibrant colors and wide viewing angles. With ultra-slim bezels, the MSI Pro MP161 E2 provides a sleek and modern look. It enhances your workspace without taking up too much space. The anti-glare screen ensures comfortable viewing in different lighting conditions. The portable monitor supports multiple connectivity options, including USB-C and Mini HDMI. This allows easy connection to laptops, tablets, and gaming consoles. Plug-and-play functionality makes setup quick and hassle-free. Weighing only 0.75 kg, the MSI Pro MP161 E2 15.6″ 60Hz Portable Monitor is perfect for travel. Its ultra-slim profile fits easily into bags, making it ideal for remote work or presentations. The built-in stand allows flexible positioning for better comfort. You can adjust the screen angle for the best viewing experience. The durable design ensures long-term reliability. With low blue light technology, this portable monitor reduces eye strain during extended use. It is perfect for professionals who spend hours in front of a screen. In conclusion, the MSI Pro MP161 E2 15.6″ 60Hz Portable Monitor is a great choice for those needing a secondary display. Its lightweight design, excellent visuals, and versatile connectivity make it ideal for work and entertainment. Specifications: Display : 15.6″ IPS Resolution : 1920×1080 FHD Refresh Rate : 60Hz Response Rate : 4ms Speaker : 1.5W x2
The 60W MagSafe 2 Power Adapter features a magnetic DC connector so if someone should trip over it, the cord disconnects harmlessly and your MacBook Pro stays put safely. It also helps prevent fraying or weakening of the cables over time. In addition, the magnetic DC helps guide the plug into the system for a quick and secure connection. The 60W MagSafe 2 Power Adapter features a magnetic DC connector so if someone should trip over it, the cord disconnects harmlessly and your MacBook Pro stays put safely. It also helps prevent fraying or weakening of the cables over time. In addition, the magnetic DC helps guide the plug into the system for a quick and secure connection. When the connection is secure, an LED located at the head of the DC connector lights up; an amber light lets you know that your notebook is charging, while a green light tells you that you have a full charge. An AC cord is provided with the adapter for maximum cord length, while the AC wall adapter (also provided) gives you an even easier and more compact way to travel. Designed to be the perfect traveling companion, the adapter has a clever design which allows the DC cable to be wound neatly around itself for easy cable storage. Compatible with MacBook Pro with 13-inch Retina display. See this article for more details about choosing the right one. Knowing which specific Mac model you have is important. If you are running OS X Lion (10.7) or later go to the “” menu at the top left of your screen, choose “About this Mac” then click the “More Info…” button. Your Mac model and generation will be displayed. If you are running an earlier version of OS X, you can enter your serial number here to find out which model you have. COMPATIBILITY Mac Models: MacBook Pro (Retina, 13-inch, Late 2012 – 2015)
The MSI G274F 27″ Gaming Monitor delivers smooth visuals with a 180Hz refresh rate and FHD resolution. It ensures responsive gameplay for fast-paced titles. Moreover, its IPS panel provides accurate colors and wide viewing angles. This allows consistent image quality from different positions. The monitor supports Adaptive Sync to reduce screen tearing and stuttering. This feature enhances fluidity during high-speed gaming sessions. It also includes ergonomic adjustments like tilt, swivel, and height options. Cable management is integrated to keep your desk organized. With low blue light and anti-flicker technology, it minimizes eye strain for long gaming or work sessions. The MSI G274F 27″ Gaming Monitor is ideal for users seeking smooth visuals, accurate colors, and responsive gameplay. Specifications: 27″ FHD IPS panel with accurate colors and wide viewing angles 180Hz refresh rate for fluid and responsive gaming Adaptive Sync support to reduce screen tearing Ergonomic adjustments with tilt, swivel, and height options Low blue light and anti-flicker technology for eye comfort
The MSI MAG 274QRFW E20 White Gaming Monitor is built for competitive gaming and immersive entertainment. It features a 27-inch Rapid IPS panel with WQHD (2560×1440) resolution, delivering sharp visuals, wide viewing angles, and accurate colors. In addition, the monitor offers a 200Hz refresh rate and an ultra-fast 0.5ms (GtG) response time. Therefore, it produces smooth gameplay with reduced motion blur in fast-paced games. Moreover, it supports NVIDIA G-SYNC Compatible and AMD FreeSync Premium technologies. As a result, gameplay stays fluid while minimizing screen tearing and stuttering. The DisplayHDR 400 certification also improves contrast and highlights for more lifelike visuals. The monitor includes DisplayPort 1.4a, dual HDMI 2.0b ports, and a headphone output for flexible connectivity. In addition, its ergonomic stand supports height, tilt, swivel, and pivot adjustments for comfortable viewing. Finally, the MSI MAG 274QRFW E20 combines high refresh rates, vibrant colors, and ergonomic flexibility, making it an excellent choice for competitive gamers and content creators. Specifications: Display: 27″ Rapid IPS WQHD (2560×1440) Refresh Rate: 200Hz with 0.5ms (GtG) response time HDR: VESA DisplayHDR 400 certified Sync Technology: NVIDIA G-SYNC Compatible & AMD FreeSync Premium Connectivity: DisplayPort 1.4a, 2× HDMI 2.0b, Headphone Out
Lexar NM620 1TB SSD, M.2 2280 PCIe Gen3x4 NVMe 1.4 Internal SSD, Up to 3500MB/s Read, 3000MB/s Write, 3D NAND Flash Internal Solid State Drive for PC Enthusiasts and Gamers (LNM620X001T-RNNNG) About this item High-speed PCIe Gen3x4 interface: Lexar 1TB SSD up to 3500MB/s read and 3000MB/s write – NVMe 1.4 is supported. Lexar Internal SSD M.2 2280 form factor with 3D NAND Lexar Solid state drive maintains 6x the speed of a SATA-based SSD. Lexar SSD is ideal for PC enthusiasts and gamers. Lexar Internal solid state drive is shock and vibration-resistant without moving parts.
The ViewSonic 27″ 75Hz Monitor offers an exceptional viewing experience for both work and play. Its large 27-inch screen provides ample space for multitasking, gaming, and streaming. Featuring a full HD resolution, the ViewSonic 27″ 75Hz Monitor delivers crisp and clear visuals. Whether you’re editing photos, watching videos, or browsing the web, every detail comes to life with stunning clarity. The 75Hz refresh rate ensures smooth and fluid motion, reducing screen tearing and stuttering. This makes it perfect for fast-paced gaming and high-definition video playback. Designed with user comfort in mind, the ViewSonic 27″ 75Hz Monitor features an adjustable stand. You can easily tilt, swivel, and adjust the height to find the perfect viewing angle. The monitor’s slim bezel design provides an immersive viewing experience, minimizing distractions and maximizing screen space. This sleek and modern design complements any workspace or gaming setup. Equipped with multiple connectivity options, the ViewSonic 27″ 75Hz Monitor is versatile and compatible with various devices. It includes HDMI and VGA ports, making it easy to connect to your computer, gaming console, or other peripherals. The ViewSonic 27″ 75Hz Monitor also features built-in speakers for convenient audio playback. Enjoy clear and immersive sound without the need for external speakers. In conclusion, the ViewSonic 27″ 75Hz Monitor combines stunning visuals, smooth performance, and ergonomic design for an enhanced viewing experience. Upgrade to the ViewSonic 27″ 75Hz Monitor today and enjoy a perfect blend of work and play. Specifications: Display : 27″ IPS Resolution : FHD 1920 x 1080 Refresh Rate : 75Hz Response Rate : 1ms MRPT
The MSI Pro MP272 E14C is a 27‑inch FHD monitor built for business and productivity. It delivers clear Full HD visuals with a fast 144 Hz refresh rate. Furthermore, its IPS panel provides wide viewing angles and accurate colors, making work and multimedia more enjoyable. It supports a 1 ms (MPRT) response time, which reduces motion blur in videos and fast‑moving content. In addition, Adaptive‑Sync technology helps smooth gameplay and reduce screen tearing. The monitor also includes HDR Ready support for improved contrast and detail. Moreover, the design features a four‑side slim bezel for a clean look and immersive viewing experience. It offers anti‑glare treatment and built‑in speakers for convenient multimedia use. As a result, the MSI Pro MP272 E14C enhances productivity and comfort whether you work, create, or play. . Specifications: 27‑inch FHD (1920 × 1080) IPS panel with wide viewing angles 144 Hz refresh rate with 1 ms (MPRT) response time Adaptive‑Sync support and HDR Ready for smooth visuals HDMI 2.0 and USB‑C (DP Alt Mode with 15 W PD) connectivity Built‑in speakers, anti‑glare surface, and slim bezel design
27-inch UHD 4K IPS display DCI-P3 95% (Typ.) VESA DisplayHDR™ 400 AMD FreeSync™ Dynamic Action Sync, Black Stabilizer Tilt, Height and Pivot Adjustable Stand DISPLAY Size (Inch) 27 Size (cm) 68.4 Resolution 3840 x 2160 Panel Type IPS Aspect Ratio 16:9 Pixel Pitch 0.1554 x 0.1554 Brightness (Min.) 320 cd/m² Brightness (Typ.) 400 cd/m² Color Gamut (Typ.) DCI-P3 95% (CIE1976) Color Depth (Number of Colors) 1.07B Contrast Ratio (Min.) 1000:1 Contrast Ratio (Typ.) 1200:1 Response Time 5ms (GtG at Faster) Viewing Angle (CR≥10) 178º(R/L), 178º(U/D) Surface Treatment Anti-Glare HDR HDR 10 Yes VESA DisplayHDR™ DisplayHDR™ 400 HDR Effect Yes COLOR & CALIBRATION Wide Color Gamut Yes Color Calibrated Yes FEATURES Flicker safe Yes Reader Mode Yes Color Weakness Yes Super Resolution+ Yes RADEON FreeSync™ Yes Black Stabilizer Yes Dynamic Action Sync Yes Smart Energy Saving Yes SOFTWARE APPLICATION Dual Controller Yes OnScreen Control (LG Screen Manager) Yes CONNECTIVITY HDMI Yes (2ea) HDMI (Max. Resolution at Hz) 3840×2160@60Hz DisplayPort Yes(1ea) DP Version 1.4 DP (Max. Resolution at Hz) 3840×2160@60Hz Headphone Out Yes POWER Type External Power(Adapter) AC Input 100~240V (50/60Hz) Power Consumption (Typ.) 40W Power Consumption (Max.) 44W Power Consumption (Energy Star) 24W Power Consumption (Sleep Mode) 0.5W Power Consumption (DC Off) Less than 0.3W MECHANICAL Display Position Adjustments Tilt/Height/Pivot Wall Mountable 100 x 100 mm DIMENSIONS/WEIGHT Dimension with Stand (W x H x D) 613.5 x 569.3 x 239.3 mm (Up) 613.5 x 459.3 x 239.3 mm (Down) Dimension without Stand (W x H x D) 613.5 x 363.5 x 45.4 mm Dimension in Shiping (W x H x D) 694 x 496 x 212 mm Weight with Stand 5.6kg Weight without Stand 3.8kg Weight in Shipping 9kg 3 Years Warranty manufacturer link
Philips Evnia 34M2C5500 34-inch ultrawide gaming monitor delivers immersive and ultra-smooth performance for gaming and multitasking. It focuses on high refresh rate, curved design, and wide QHD clarity for an engaging experience. Additionally, it features a 34-inch Fast VA panel with UltraWide QHD resolution (3440 × 1440). This resolution provides a wider field of view, so it improves both gaming immersion and productivity workflows. Moreover, it supports up to a 180Hz refresh rate with 0.5ms Smart MBR response time. As a result, it delivers very smooth motion and reduces blur in fast-paced gameplay. The monitor uses a 1500R curved design. Therefore, it enhances immersion by wrapping visuals around your natural field of view. In addition, it supports VESA DisplayHDR 400. This improves brightness, contrast, and color depth, so visuals appear more vivid and lifelike. Furthermore, it includes Adaptive Sync and low input lag. These features reduce tearing and improve responsiveness for competitive gaming. It also offers gaming tools such as Smart Crosshair and SmartImage modes. So it helps improve aiming accuracy and visual tuning during gameplay. Philips Evnia 34M2C5500 34-inch ultrawide gaming monitor provides immersive visuals, high-speed performance, and advanced gaming features for serious players. Specifications: 34-inch Fast VA panel with 3440 × 1440 UltraWide QHD resolution 180Hz refresh rate for ultra-smooth gaming 0.5ms Smart MBR response time for reduced motion blur 1500R curved design for immersive viewing DisplayHDR 400 with Adaptive Sync support
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.
A high-performance pre-owned MacBook Pro 15" (2015) with a stunning Retina display, upgraded 16GB RAM, 128GB SSD, and powerful 2GB dedicated graphics—ideal for developers, creatives, and power users seeking reliable Apple performance.
A durable and versatile pre-owned Lenovo ThinkPad T470 with 14" touchscreen, 6th Gen Core i5, 8GB RAM, and 256GB SSD—ideal for professionals who need reliability, touch functionality, and trusted ThinkPad performance.
The Portable Screen PS185 is designed for users who need a lightweight and versatile second display. It is perfect for travel, work, or entertainment. This 18.5-inch portable screen delivers clear and sharp visuals. Colors appear bright, and details are easy to see. It enhances productivity and makes media more enjoyable. The slim and lightweight design makes it easy to carry. It fits in bags without adding bulk. This makes it ideal for professionals on the go. The Portable Screen PS185 supports multiple connectivity options. It includes HDMI and USB-C inputs for flexible use. You can connect it to laptops, consoles, or smartphones. Plug-and-play setup makes it simple to use. No extra software or drivers are required. This ensures quick and smooth operation anywhere. The screen provides wide viewing angles. You can share content with colleagues, friends, or family. Visuals remain clear from different positions. Built-in speakers add convenience for entertainment. You can watch movies or play games without external speakers. The sound is clear for casual use. The Portable Screen PS185 is also energy-efficient. Low power consumption ensures longer use with connected devices. This makes it practical for travel and business trips. Its durable build ensures long-lasting performance. The screen is resistant to scratches and daily wear. It remains reliable for frequent use. In summary, the Portable Screen PS185 combines portability, clarity, and versatility. It is a great tool for work and play. Specifications: Display : 18.5″ IPS Resolution : FHD 1920×1080 Dual Type-C & Mini HDMI
• LCD panel type: IPS technology • Backlight type: W-LED system • Panel Size: 23.8 inch / 60.5 cm • Display Screen Coating: Anti-Glare, 3H, Haze 25% • Effective viewing area: 527 (H) x 296.5 (V) • Aspect ratio: 16:9 • Maximum resolution: 1920 x 1080 @ 75 Hz* • Pixel Density: 93 PPI • Response time (typical): 4 ms (GtG)* • Brightness: 250 cd/m² • Contrast ratio (typical): 3000:1 • SmartContrast: Mega Infinity DCR • Pixel pitch: 0.2745 x 0.2745 mm • Viewing angle: 178º (H) / 178º (V), @ C/R > 10 • Flicker-free • Display colors: 16.7 M • Scanning Frequency: 30 – 85 kHz (H) / 48 – 75 Hz (V) • LowBlue Mode • EasyRead • sRGB • Adaptive sync , CABLE POWER,CABLE HDMI,CABLE VGA 1 YEAR WARRANTY
The Apildella Portable Monitor 15.6″ FHD UFYQL gives you clear visuals in a slim and light design. It delivers sharp Full HD resolution for work and entertainment. The screen shows bright colors and smooth images. This makes documents, videos, and games look clear and detailed. Moreover, the Apildella Portable Monitor 15.6″ FHD UFYQL connects easily through USB-C and HDMI. These ports give you quick and simple setup. You can use the monitor without extra adapters. This helps you save time and reduce cable clutter. In addition, the monitor works with laptops, phones, tablets, and gaming consoles. This wide compatibility allows you to use it anywhere. You can work during travel, play games on the go, or extend your desktop. It offers strong flexibility for daily use. Furthermore, the Apildella Portable Monitor 15.6″ FHD UFYQL features a thin frame with a clean design. It fits easily in backpacks and bags. The monitor is lightweight, and this makes it easy to carry. It is a great tool for students and professionals. Also, the monitor includes built-in speakers for simple audio use. They deliver clear sound for calls and videos. The screen also reduces eye strain with eye-care features. This helps you use the monitor comfortably for long hours. The smart cover of the Apildella Portable Monitor 15.6″ FHD UFYQL protects the screen during travel. It also works as a foldable stand. You can set the monitor at different angles for better viewing. This makes work and entertainment more enjoyable. Overall, the Apildella Portable Monitor 15.6″ FHD UFYQL offers portability, clarity, and convenience in one device. It improves productivity and entertainment anywhere you go. It is perfect for travel, study, work, and gaming. Specifications: Display : 15.6″ IPS Resolution : FHD 1920×1080 Refresh Rate : 60Hz Response Time : 5ms
