New A1989 A1990 Keyboard US Standard Replacement for MacBook Pro 13'' 15''A1990 A1989 Keyboard 2018/2019 Year New A1989 A1990 Keyboard US Standard Replacement for MacBook Pro 13” 15”A1990 A1989 Keyboard 2018/2019 Year New A1989 A1990 Keyboard US Standard Replacement for MacBook Pro 13” 15”A1990 A1989 Keyboard 2018/2019 Year We have Perfect after-sales services We share the latest information on laptop spare parts For all our customers. This is NOT an easy job for someone who has no technical skills with Disassembling or Assembling a laptop, So only purchase this item if you know how to install it. Each Keyboard is tested before shipping and working.
The Asus ZenScreen 15.6″ Portable USB Monitor is the perfect solution for productivity on the go. Its slim and lightweight design makes it easy to carry anywhere. Whether you’re working, studying, or gaming, this portable monitor enhances your experience. With a Full HD 1080p display, the Asus ZenScreen delivers crisp and vibrant visuals. The IPS panel ensures wide viewing angles and accurate colors. Enjoy clear images whether you’re indoors or outdoors. Setting up the Asus ZenScreen 15.6″ Portable USB Monitor is simple. It connects via USB-C or USB-A, making it compatible with laptops, tablets, and smartphones. No need for extra drivers or complicated installations. This monitor features an auto-rotating screen, allowing you to switch between portrait and landscape modes. It’s ideal for coding, reading documents, or multitasking efficiently. With TÜV Rheinland-certified Eye Care technology, the Asus ZenScreen reduces blue light and flicker. This helps minimize eye strain, making it perfect for long hours of use. Work or watch comfortably without discomfort. The Asus ZenScreen Portable USB Monitor comes with a foldable smart case that doubles as a stand. Adjust it to different angles for the best viewing experience. The built-in pen hole also lets you prop up the monitor with a pen. Designed for both professionals and casual users, this monitor is a must-have for portable productivity. Stay efficient and expand your screen space wherever you go. Upgrade your workflow today with the Asus ZenScreen 15.6″ Portable USB Monitor. Specifications: Display : 15.6″ IPS Resolution : FHD (1920×1080) Refresh Rate : 60Hz Response Rate : 5ms GTG Interface : USB-C
The Samsung Crystal UHD U8000F 55″ 4K TV UA55U8000FUXTW uses a 55-inch LCD panel with 3840 × 2160 resolution. It delivers standard 4K output for everyday TV, streaming, and console use. Samsung uses the Crystal Processor 4K for image processing and upscaling. As a result, lower-resolution content converts closer to 4K quality on the screen. In addition, the TV supports HDR10 and HDR10+, which improve contrast between bright and dark areas. The display runs at a 60 Hz refresh rate. Also, Motion Xcelerator reduces blur during fast scenes such as sports and action content. Samsung equips the TV with Tizen OS. Therefore, users access streaming apps, SmartThings integration, and built-in smart functions through a simple interface. Connectivity includes HDMI ports, USB ports, Wi-Fi, Bluetooth, Ethernet LAN, and optical audio output. In addition, the TV supports ALLM for basic gaming response performance. This model focuses on 4K resolution, standard HDR support, and essential smart TV features without advanced gaming or local dimming systems. Specifications: 55-inch LCD panel with 3840 × 2160 4K UHD resolution Crystal Processor 4K with upscaling support HDR10 and HDR10+ compatibility 60 Hz refresh rate with Motion Xcelerator Tizen OS with HDMI, USB, Wi-Fi, Bluetooth, Ethernet connectivity
PCE 900 M8 900VA 480W Output Power: 700VA (M8 700), 900VA (M8 900) Voltage Input Range: 220-240 VAC with 102 wires (M8 700), 140-300 VAC (M8 900) Output Protection: Overload, discharge, and overcharge protection (M8 700), Fault protection (M8 900) Waveform: Simulated Sine Wave LED Indicators: Green lighting (M8 700), Green flashing (M8 900) Frequency: 50 or 60 Hz +/- 10% (auto sensing) (M8 700), 50 or 60 Hz +/- 1% (M8 900) Voltage (backup mode): 12V/9AH x 1 (M8 700), 12V/7AH x 1 (M8 900) Frequency (backup mode): 50 or 60 Hz +/- 1% (M8 700 and M8 900) Transfer time (M8 700): Typical 2 to 6 ms Backup time (M8 900): 10-20min depending on load level Net Weight: 4.3 kg (9.46 lbs) (M8 700), 4.8 kg (10.56 lbs) (M8 900) Output Receptacles: Universal sockets x 2 or German x 2 (M8 700), Universal sockets x 4 (M8 900) Audible Noise: Sounding every 10 seconds (M8 700), Sounding every second (M8 900) Dimensions: 100x278x140 (3.9″x10.8″x5.5″) (M8 700), 130x320x182 (5.07″x12.48″x7.1″) (M8 900) Compatibility: Windows 2000/XP/2003/2008/Vista/7, NOVELL, LINUX, UNIX (M8 700), Optional Interface with power management software (M8 900) Certifications: EN 50091-1-1/EN 69050 (RD), IEC 60950, TUV GC-Mark, EN 50091-2, EN 50022/B, IEC 62040-2, IEC 61000-3-2, IEC 61000-3-3, ISO 9001, ISO 14001 (M8 700 and M8 900)
New BT04XL 14.8V 52WH Notebook Battery for HP EliteBook Folio 9470 9470M 9480m Ultrabook BT04 BA06 HSTNN-IB3Z HSTNN-I10C 687945-001 H4Q47AA 687517-241 HSTNN-DB3Z 687517-171 BA06XL H4Q48AA About this item Battery type: Li-ion; Capacity: 52WH; Voltage: 14.8V; Cells: 6-cell. The battery compatible with P/N.: Spare 687517-171 687517-241 687945-001 696621-001; EliteBook Folio 9470 9470M 9480 9480M Series; fits HSTNN-DB3Z HSTNN-IB3Z HSTNN-I10C 687517-1C1 BT04 BT04XL BA06 BA06XL H4Q47AA H4Q48AA 100% New from Manufacturer. Up to 500 recharge cycles over the life of the battery. Grade A cells ensure fast charges and low power consumption. Grade A cells ensure fast charges and low power consumption; Built-in circuit protection ensures both safety and stability. Brand new from Manufacturer. Up to 500 recharge cycles over the life of the battery. Operation time for standard batteries: Around1.5~3.5 hours, the actual operation time will depend on how much electricity is required by the device and how you use it.
Laptop Charger for HP 90W 19.5V 4.62A (Blue Tip) Pavilion 17 15-E 17-E 14-E 15-AK Series Touchsmart Sleekbook M6-K M7-J 17-J M6 M7 709986-004 709986-002 753560-001 710413-001 PPP012D-S AC Adapter
WiWU A821CH 8‑in‑1 Stand & Dock – A foldable aluminum laptop stand with a built-in 8‑port USB‑C dock (two USB‑A, two USB‑C, HDMI 4K30, SD/TF, Gigabit Ethernet, PD 100 W).Enhances comfort, cooling, and functionality—perfect for decluttered, professional work setups. Model: WiWU A821CH Design: Sturdy aluminum alloy stand with foldable, portable design, hollow surface for cooling, and silicone pads to prevent slips Dimensions & Weight: Compact when folded (~400 g in aluminum) Docking Hub Ports: 2 × USB-C ports 2 × USB‑A 3.0 ports 1 × HDMI (up to 4K@30 Hz) SD + micro‑SD card slots 1 × RJ‑45 Gigabit Ethernet (1000 Mbps) Docking Hub Ports: 2 × USB-C ports 2 × USB‑A 3.0 ports 1 × HDMI (up to 4K@30 Hz) SD + micro‑SD card slots 1 × RJ‑45 Gigabit Ethernet (1000 Mbps) Power Delivery: USB-C PD 3.0 supports up to 100 W—can charge a laptop while using other ports Connectivity: HDMI supports up to 4K@30 Hz; Ethernet up to Gigabit speed Stand Features: Detachable base—can use stand and hub together or separately, with adjustable ergonomic angles and vents for airflow Durability: Aluminum alloy with frosted texture, scratch-resistant finish, tested to executive standards
Designed by Apple Deeper, richer bass tones Greater protection from sweat and water Control music and video playback Answer and end calls Works with all devices that have a Lightning connector and support iOS 10 or later, including iPod touch, iPad, and iPhone
The MSI MAG 273QP QD-OLED X24 is a stunning gaming monitor with sharp visuals and smooth performance. This display brings vibrant colors and deep contrasts to every game and movie. Moreover, its QD-OLED panel delivers lifelike pictures that feel rich and alive. Therefore, it fits well for gamers, creators, and everyday users. First, the screen quality is excellent with bright highlights and deep blacks. Every scene looks clear and detailed, making games more immersive. In addition, the wide color range enhances photos and videos. This means visual content feels more real and exciting on this screen. Also, the display offers consistent colors from different viewing angles. Next, the refresh rate is fast, so motion stays smooth and fluid. This helps with fast games and video content. Furthermore, adaptive sync technology reduces screen tearing for a better experience. As a result, gaming feels responsive and enjoyable without lag or blur. Players will notice sharper movement in games. The design is sleek and modern with thin bezels. Therefore, it looks great on any desk and feels like a premium setup. Also, the stand is adjustable for height and tilt. This makes long sessions more comfortable and easy to position. Meanwhile, the built-in speakers add basic audio without extra devices. Connectivity is strong with multiple ports for peripherals. You can easily connect consoles, PCs, and other gadgets. Moreover, the monitor supports high bandwidth for crisp image output. This makes it ready for current and future hardware demands. Overall, the MSI MAG 273QP QD-OLED X24 delivers top visuals, fluid performance, and practical features. It combines quality display and functionality in one package. For gamers and creators alike, this monitor is a smart choice for sharp graphics and smooth play. Specifications: Display : 27″ QD-OLED Resolution : 2560 x 1440 (WQHD) Refresh Rate : 240Hz Response Rate : 0.03ms (GTG)
BATTERY ASUS A41-X550E X450 X450e X450j X450jf X550e X550z X550za X750j X750ja X751 X751m A450j A450jf A450e F751la F751ma F751mj R751 R752 F751 K751 P750L P750L Series About this item Gomarty:100% Brand NEW, Battery Type: Li-ion Voltage: 15V Capacity: 2600MAH Cells: 4-cell Color: Black, High-Quality Battery for ASUS; Gomarty has registered a U.S. Trademark and the serial number is 87155272 Battery Models: A41-X550E Laptop Battery for Asus X450 X450E X450J X450JF X751M X751MA-DB01Q X751MA X751L X750JA This laptop Battery works with ASUS D451V D451E K450V K550E K550D K550DP F450 F450C F450V F450E F450J F450JF F751 F751L F751LA F751LAV F751LB F751LD F751LDV F751LJ F751LK F751LN F751LX F751M F751MA F751MD F751MJ A450 A450C A450V A450E A450J A450JF Series 0B110-00220000M. Grade A cells ensure fast charges and low power consumption, while built-in circuit protection ensures safety and stability. Customer Questions: If you have any questions, you can contact us. We will respond within 24 hours.
Reliable, compact, and business-focused—the Dell Latitude 5310 features a 10th Gen Intel Core i5 processor, 8GB RAM, and a fast 256GB SSD in a lightweight 13.3-inch design built for everyday productivity.
The Samsung 75″ QLED 4K Q60F Smart TV QA75Q6FAAUXTW delivers a large-screen entertainment experience with advanced QLED display technology. It produces bright colors, sharp details, and impressive clarity, making movies, sports, and games more enjoyable on the expansive 75-inch screen. QLED technology uses Quantum Dot enhancement to improve color accuracy and brightness. As a result, images appear vivid and lifelike across a wide range of content. Dark scenes retain detail, while bright scenes remain balanced and clear. This helps create a consistent viewing experience throughout the day. The 4K UHD resolution provides four times the detail of Full HD content. Therefore, images look sharper and more refined. In addition, Samsung’s processing technology enhances lower-resolution content, helping it appear clearer and closer to 4K quality. HDR support improves contrast and expands the range of visible colors. This allows brighter highlights and deeper shadows, creating a more realistic picture. Fast-moving scenes also appear smoother, making sports broadcasts and action movies more enjoyable to watch. The Smart TV platform offers convenient access to popular streaming services, apps, and connected home features. It responds quickly and provides an easy-to-use interface for everyday entertainment. In addition, the slim design and narrow bezels give the Samsung QLED 75 4K Q60F Smart TV QA75Q6FAAUXTW a modern appearance that complements a variety of living spaces. Overall, this Samsung QLED TV combines large-screen immersion, vibrant color performance, and smart connectivity for a reliable home entertainment solution. Specifications: QLED technology delivers vibrant colors and enhanced brightness 75-inch 4K UHD display provides immersive viewing HDR improves contrast and image realism Smart TV platform supports streaming apps and connected features Slim design complements modern living spaces
Genuine-spec touchpad flex cable for MacBook Pro 15″ (Model A1707, 2016–2017)—restores full Force Touch functionality, haptic feedback, and precise multi-touch gesture control during trackpad repair or replacement. Compatible With: MacBook Pro 15″ (2016) – Model A1707 (Model Identifier: MacBookPro13,2) MacBook Pro 15″ (2017) – Model A1707 (Model Identifier: MacBookPro14,2) MacBook Pro 15″ (2016) – Model A1707 (Model Identifier: MacBookPro13,2) MacBook Pro 15″ (2017) – Model A1707 (Model Identifier: MacBookPro14,2) Part Type: Touchpad flex cable only — does not include the trackpad housing, Taptic Engine, or mounting hardware. This is the OEM-style ribbon cable that connects the trackpad to the logic board. Function: Transmits: Touch input coordinates Force Touch pressure data Haptic feedback signals to the Taptic Engine Enables full macOS gesture support: Force Click, three-finger lookup, swipe navigation, pinch-to-zoom, and smooth cursor tracking. Touch input coordinates Force Touch pressure data Haptic feedback signals to the Taptic Engine Enables full macOS gesture support: Force Click, three-finger lookup, swipe navigation, pinch-to-zoom, and smooth cursor tracking. OEM-Quality Build: Matches Apple’s original specifications in: Cable length and routing path Connector pitch and ZIF latch design EMI shielding and flex durability Cable length and routing path Connector pitch and ZIF latch design EMI shielding and flex durability Common Use Cases: Replacing a torn, creased, or liquid-damaged original flex cable Completing a trackpad replacement when the original cable is compromised Fixing intermittent trackpad behavior, loss of Force Touch, or complete unresponsiveness Replacing a torn, creased, or liquid-damaged original flex cable Completing a trackpad replacement when the original cable is compromised Fixing intermittent trackpad behavior, loss of Force Touch, or complete unresponsiveness Installation Note: Requires full bottom case removal and battery disconnection. Cable routes under internal components near the right speaker and logic board. Connects via a ZIF (Zero Insertion Force) socket—must be aligned carefully and latched gently. Recommended for experienced or certified technicians only. Requires full bottom case removal and battery disconnection. Cable routes under internal components near the right speaker and logic board. Connects via a ZIF (Zero Insertion Force) socket—must be aligned carefully and latched gently. Recommended for experienced or certified technicians only.
The AOC Q27G3Z is a high-end 27″ gaming monitor with a QHD resolution of 2560×1440. It uses a Fast IPS panel that delivers excellent color and speed. In addition, it supports a refresh rate of 240 Hz and a response time of 0.5 ms (MPRT) for ultra-smooth gameplay. Its adaptive sync support ensures tear-free visuals during fast action. The AOC Q27G3Z covers wide color gamuts: NTSC 110 %, sRGB 123 %, and DCI-P3 101 %. This makes it ideal not only for gaming but also for content creation. Moreover, it is VESA DisplayHDR 400 certified, so highlights pop and blacks look deeper. The brightness reaches around 400 cd/m², making it suitable in well-lit rooms. Connectivity includes two HDMI 2.0 ports and two DisplayPort 1.4 inputs for flexibility across consoles and PCs. Additionally, the ergonomic stand allows height adjustment, tilt, swivel, and pivot for comfortable viewing in any setup. Its sleek black & red design blends into gaming rigs easily. In short, the AOC Q27G3Z combines speed, clarity and color accuracy in one package. It is a great choice for competitive gamers and creators who want a balanced monitor that handles both performance and visuals well. Check out other option here! Specifications: Display : 27″ Fast IPS Resolution : 2560 x 1440 (QHD) Refresh Rate : 240Hz Response Rate : 0.5ms
BATTERY DELL RYXXH Laptop Battery Compatible with DELL Latitude E5250 P25S001 Latitude E5450 E5550 DELL Latitude 3150 P21T001 Series Notebook 09P4D2 9P4D2 0YD8XC R5MD0 5TFCY VVXTW VY9ND 38Wh 11.1V About this item 【Basic Details】Item Model: RYXXH ; Battery Type: Li-ion; Voltage: 11.1V; Capacity: 38Wh; Battery Color: Black. 【Compatible P/N 】RYXXH 0RYXXH 9P4D2 R5MD0 YD8XC 5TFCY VVXTW VY9ND 0VY9ND Laptop Battery. 【Compatible Laptop Models】 DELL Latitude 12 5000 Series, DELL Latitude 12 E5250 Series, DELL Latitude E5450 Series, DELL Latitude E5550 Series, DELL Latitude 3150 Series, DELL Latitude 3160 Series. 【Note】The package includes: 1*battery and 1*Instructions. Packaged by sponge or bubbles to prevent damage. Before purchasing, please open the back cover of the laptop to confirm the battery model and shape.
Are you ready to take your gaming to the next level? Look no further than the Viewsonic VX2728J 27″ 180Hz gaming monitor. With its stunning display and lightning-fast refresh rate, you’ll enjoy an unparalleled gaming experience. Firstly, let’s talk about the impressive 27-inch screen size. Immerse yourself in the action with crisp, clear visuals that bring every game to life. Whether you’re exploring vast open worlds or engaging in intense multiplayer battles, every detail will be vivid and immersive. Moreover, the 180Hz refresh rate ensures silky-smooth gameplay with no motion blur or tearing. Say goodbye to choppy frame rates and hello to fluid, responsive gameplay. With this monitor, you’ll have the competitive edge you need to dominate the competition. In addition to its performance, the Viewsonic VX2728J boasts vibrant colors and deep contrasts. Experience games the way they were meant to be seen, with rich, true-to-life hues that make every scene pop. Whether you’re exploring lush environments or navigating dark corridors, you’ll see every detail with stunning clarity. Furthermore, this monitor is packed with features designed to enhance your gaming experience. From customizable settings to advanced connectivity options, you’ll have everything you need to optimize your setup for peak performance. Say goodbye to compromises and hello to gaming greatness. In conclusion, if you’re serious about gaming, the Viewsonic VX2728J 27″ 180Hz monitor is the perfect choice. With its stunning display, lightning-fast refresh rate, and advanced features, it’s the ultimate gaming companion. Upgrade your setup and elevate your gaming experience today! Specifications: Display : 27″ Fast IPS Resolution : 1920 x 1080 FHD Refresh Rate : 180Hz Response Rate : 0.5ms Adjustable Height : 0~130mm Pivot : 0° ~ 90° Swivel : -15° ~ 15° Tilt : -5° ~ 20°
MSI MAG 272UP QD-OLED X24 is a premium 27-inch gaming monitor designed for competitive gaming, content creation, and immersive entertainment. It features a 4th-generation QD-OLED panel with 4K UHD resolution (3840 × 2160), delivering exceptional image quality, deep blacks, and vibrant colors. The monitor offers an ultra-fast 240Hz refresh rate and a 0.03ms GtG response time for incredibly smooth gameplay and minimal motion blur. Therefore, it is ideal for fast-paced esports titles and AAA gaming experiences. It supports both NVIDIA G-SYNC Compatible and AMD FreeSync Premium Pro technologies to reduce screen tearing and stuttering. In addition, VESA DisplayHDR True Black 400 certification enhances contrast and HDR performance for more realistic visuals. The monitor delivers outstanding color accuracy with 99% DCI-P3 coverage, 98% Adobe RGB coverage, and Delta E ≤ 2 calibration. Moreover, MSI OLED Care 2.0 technology helps reduce the risk of image retention and burn-in. Connectivity includes HDMI 2.1, DisplayPort 1.4a, and USB Type-C with DisplayPort Alt Mode and 15W Power Delivery. As a result, it provides excellent compatibility with gaming PCs, laptops, PlayStation 5, and Xbox Series X consoles. Specifications: 27-inch 4K UHD QD-OLED display 240Hz refresh rate for ultra-smooth gaming 0.03ms GtG response time G-SYNC Compatible and FreeSync Premium Pro DisplayHDR True Black 400 with OLED Care 2.0
A1707 Battery Replacement, A1820 Battery for MacBook Pro 15″ (Late 2016, Mid 2017) Touch Bar EMC 3072 EMC 3162 MLH32 MLH42 MLW72 MLW82 MPTR2 MPTT2 MLH52 MLW92 MPTU2 MPTV2 MPTW2 MPTX2 Specification】Voltage: 11.4V. Capacity: 76Wh 6667mAh. Battery Type: Li-ion. Condition: Brand new, from high quality materials, top circuit boards and smart chip. 【Compatible Part Number】A1820, A1707, A1707(EMC 3072), A1707(EMC 3162), 020-01728, MacBookPro13,3 , MacBookPro14,3. 【Compatible Laptop Models】MacBook Pro 15-Inch (Late 2016) & (Mid 2017) Model A1707 with touch bar, fit for MLH32LL/A MLH42LL/A MLH52LL/A MLW92LL/A MPTU2LL/A MPTV2LL/A MPTR2LL/A MPTT2LL/A MPTW2LL/A MPTX2LL/A MLW72LL/A MLW82LL/A. 【Note】The tools are included. Double-sided tape is attached to the back of the battery or double-sided tape is included in the package. But No battery installation instruction. The MBP battery is difficult to disassemble, we suggest you search for related installation videos on the Internet or find a technician for help.
HP Monitor 27er 27-inch Display Technical specifications LED feature Specification Display size 68.6 cm (27 in) diagonal Display type IPS with LED Backlight Panel active area 59.8 x 33.6 cm (23.5 x 13.2 in) Brightness 250 nits Color gamut 72% Color support Up to 16.7 million colors with the use of FRC technology Pixel pitch 0.3114 x 0.3114 mm 82 PPI Inputs 1 VGA 2 HDMi Viewing angle Horizontal viewing angle (typical): 178 degrees Vertical viewing angle (typical): 178 degrees Recommended resolution (H x V) 1920 x 1080 (Full HD) Aspect ratio 16:9 Static contrast ratio Up to 1000:1 Dynamic contrast ratio Up to 5,000,000:1 Response time 7 ms gray to gray with overdrive Power consumption 28 Watts max Tilt -5 to +25 degrees Power Supply External Dimensions W x D x H (unpacked): 53.1 x 18.3 x 40.4 cm (24.5 x 7.7 x 17.9 in) Weight Unpacked: 3.8 Kg (8.4 lbs) Specifications: HP Monitor 27er 27-inch Display Display size 68.6 cm (27 in) diagonal Display type IPS with LED Backlight Panel active area 59.8 x 33.6 cm (23.5 x 13.2 in) Brightness 250 nits Color gamut 72%
The ViewSonic 24″ 100Hz IPS Monitor is a high-performance display designed for work, entertainment, and gaming. It features a 24-inch Full HD IPS panel, delivering sharp visuals, vibrant colors, and wide viewing angles. Whether you’re working on creative projects, watching movies, or gaming, the high-quality display ensures a smooth and immersive experience. With a 100Hz refresh rate, this monitor provides ultra-smooth motion, reducing screen tearing and stuttering. The fast refresh rate enhances gaming, making movements appear fluid and responsive. It also improves everyday tasks like scrolling and video playback, providing a better overall visual experience. The IPS panel technology ensures consistent and accurate colors, making it ideal for content creators, designers, and professionals. The 178° wide viewing angles allow clear visibility from different positions, ensuring that images and text remain sharp and distortion-free. Designed with eye comfort in mind, the monitor features flicker-free technology and a blue light filter. These features help reduce eye strain and fatigue, making it comfortable for extended use. Whether you’re working long hours or enjoying a gaming session, this monitor keeps your eyes protected. The sleek and modern design fits seamlessly into any workspace or gaming setup. Its thin bezels provide a more immersive viewing experience, perfect for multi-monitor setups. The monitor includes multiple connectivity options, such as HDMI and DisplayPort, ensuring compatibility with a wide range of devices. With its fast refresh rate, stunning color accuracy, and ergonomic design, the ViewSonic 24″ 100Hz IPS Monitor is a great choice for professionals, gamers, and everyday users. It offers smooth performance, vibrant visuals, and long-term eye comfort in a stylish package. Specifications: Display : 24″ IPS Resolution : 1920×1080 FHD Refresh Rate : 100Hz Response Rate : 1ms
