The Samsung Odyssey G30D 27″ FHD 180Hz Gaming Monitor delivers smooth, fast visuals for games and everyday use. Its Full HD (1920×1080) resolution shows clear detail in games, videos, and work. The 27-inch screen gives you a large viewing area for wide action and immersive gameplay. This helps you see more and stay focused. Moreover, the Samsung Odyssey G30D 27″ FHD 180Hz Gaming Monitor features a high 180 Hz refresh rate. This high refresh rate makes motion fluid and clean on screen. Fast games and action scenes appear more detailed and responsive. In addition, the monitor offers a rapid 1 ms (MPRT) response time. This helps reduce ghosting and keeps fast visual shifts clear. Controls and movement feel precise and snappy. This enhances gameplay performance in fast shooters or racing games. Furthermore, the Samsung Odyssey G30D 27″ FHD 180Hz Gaming Monitor uses a VA panel with strong contrast (3000:1) and decent brightness (250 cd/m²). This delivers deeper blacks and vivid colors, improving visual quality for games and movies. It also covers around 95% sRGB for solid color representation. Also, the monitor supports adaptive sync with AMD FreeSync to reduce screen tearing and stutter when paired with compatible graphics cards. A slim 3-sided borderless design gives a clean modern look, and the ergonomic stand allows height, tilt, and swivel adjustments for comfortable use. Overall, the Samsung Odyssey G30D 27″ FHD 180Hz Gaming Monitor offers strong value by combining speed, clarity, and comfort. It suits gamers and everyday users who want smooth gameplay, responsive controls, and a clear large display. It is a solid choice for fast-paced games, casual gaming, and general computer use. Specifications: Display : 27″ VA Resolution : FHD (1920 x 1080) Refresh Rate : 180Hz Response Time : 1ms
The MSI MAG 244C 24″ FHD 180Hz Curved Gaming Monitor delivers smooth and immersive visuals for gaming, movies, and everyday use. Its Full HD resolution shows clean details in games, videos, and work tasks. The 24-inch curved screen wraps slightly around your view for deeper immersion. This helps you stay focused and engaged while playing or working. Moreover, the MSI MAG 244C 24″ FHD 180Hz Curved Gaming Monitor features a fast 180 Hz refresh rate. This refresh rate makes motion look fluid and responsive. Fast games and action scenes appear more detailed and smooth. This reduces motion blur and improves your reaction time during gameplay. In addition, the monitor offers a 1 ms (MPRT) response time. This helps reduce ghosting and keeps fast visuals clear. Your controls feel responsive and snappy. This makes it easier to compete in shooters and other fast-paced games. Furthermore, the MSI MAG 244C 24″ FHD 180Hz Curved Gaming Monitor uses a VA panel with deep contrast. Blacks appear darker and scenes look richer for games and movies. The panel also supports a wide color gamut for decent color reproduction. This improves visuals for media, gaming, and creative content. Also, the monitor supports adaptive sync technology. This sync helps prevent screen tearing and stuttering when your GPU’s frame rate changes. The curved screen and smooth frame rate combine to deliver a more immersive gaming experience. The design of the MSI MAG 244C 24″ FHD 180Hz Curved Gaming Monitor is clean with slim bezels. It fits well on most desks without taking too much space. The stand allows tilt adjustment so you can set a comfortable viewing angle. Overall, the MSI MAG 244C 24″ FHD 180Hz Curved Gaming Monitor blends speed, clarity, and immersion in one strong display. It improves gaming performance, enhances media enjoyment, and works well for everyday computing. This monitor is ideal for gamers and users who want responsive, smooth visuals without a large screen footprint. Specifications: Display : 24″ VA Resolution : FHD 1920×1080 Refresh Rate : 180Hz Response Time : 1ms Curvature : 1500R
The ViewSonic VA2732-mhd 27″ FHD 100Hz Monitor delivers smooth visuals for work, study, and daily entertainment. Its Full HD resolution shows clear text and sharp image details. The 27-inch screen gives more space for multitasking and viewing comfort. This helps users stay focused and productive. Moreover, the ViewSonic VA2732-mhd 27″ FHD 100Hz Monitor features a fast 100 Hz refresh rate. This makes scrolling smoother and motion more natural. Videos and animations look cleaner with less blur. As a result, the viewing experience feels more comfortable. In addition, the monitor uses IPS panel technology for wide viewing angles. Colors stay accurate even when viewed from the side. This helps during group work and shared screen use. The image remains bright and stable from all directions. Furthermore, the ViewSonic VA2732-mhd 27″ FHD 100Hz Monitor includes eye comfort features for daily protection. The low blue light mode reduces eye strain during long use. The flicker-free design supports viewing without discomfort. These features help users work longer with better comfort. Also, the monitor offers built-in speakers for simple audio needs. This removes the need for extra speakers in small spaces. Sound is clear for meetings, videos, and casual media. Desk setups stay clean and organized. In addition, the ViewSonic VA2732-mhd 27″ FHD 100Hz Monitor supports flexible connections. It includes HDMI, DisplayPort, and VGA for wide compatibility. You can connect laptops, desktops, and media devices easily. Switching between sources becomes quick and smooth. Moreover, the slim bezel design gives a modern and clean look. It fits well in home and office spaces. The stand supports tilt adjustment for better viewing comfort. Wall mounting is also supported for flexible setups. Overall, the ViewSonic VA2732-mhd 27″ FHD 100Hz Monitor delivers clarity, smooth motion, and daily comfort. It supports work, entertainment, and multitasking with ease. This monitor is an excellent choice for users who want large size and smooth performance. Specifications: Display : 27″ IPS Resolution : FHD 1920 x 1080 Refresh Rate : 100Hz Response Time : 1ms
A high-efficiency pre-owned HP EliteBook 865 G9 with 16" display, AMD Ryzen 7 6850U, 16GB RAM, 512GB SSD, and integrated AMD Radeon 680M graphics—ideal for business professionals seeking all-day battery life, strong performance, and enterprise security.
LENOVO 20V/3.25A USB PIN Laptop Charger for Lenovo Thinkpad Compatible Part NO.: 45N0236, 45N0237, 45N0238, 45N0239 0B46994, 0B46995, 0B46996, 0B46997, 0B46997, 0B46998, 0B469990B47000, 0B47001, 0B47002, 0B47003, 0B47004, 0B47005, 0B47006
SanDisk 1TB Portable SSD - Up to 800MB/s, USB-C, USB 3.2 Gen 2, Updated Firmware - External Solid State Drive - SDSSDE30-1T00-326 SanDisk 1TB Portable SSD – Up to 800MB/s, USB-C, USB 3.2 Gen 2, Updated Firmware – External Solid State Drive – SDSSDE30-1T00-326 About this item Solid state performance with up to 800MB/s read speeds in a portable drive. (Based on internal testing; performance may be lower depending on host device, interface, usage conditions, and other factors. 1 MB = 1,000,000 bytes.) Back up your content and memories on a storage solution that fits seamlessly into your mobile lifestyle. Take it with you on your adventures—up to a two-meter drop, protection means this durable drive can take a beating. (Based on internal testing.) Secure it to your belt loop or backpack for extra peace of mind thanks to the tough rubber hook. From SanDisk, a brand professional photographers trust to take on assignments.
The Lenovo Monitor C22-20 (62A7KAT1EU) is a 21.5-inch Full HD display designed for office and everyday computing use. It delivers a 1920 × 1080 resolution with a compact screen size suitable for small desks and multi-monitor setups. Additionally, its slim design helps maintain a clean workspace. This monitor uses a TN panel with LED backlighting and supports up to 75Hz refresh rate via HDMI. Moreover, it offers a 5ms response time for basic smoothness in general tasks and light multimedia use. The Lenovo C22-20 provides 200 nits brightness and a 600:1 contrast ratio for standard indoor viewing. Therefore, it is best suited for office work, browsing, and document handling rather than gaming or creative color work. It includes HDMI 1.4 and VGA inputs for flexible connectivity with PCs and older systems. Additionally, it supports VESA mounting for wall or arm installation. The Lenovo Monitor C22-20 (62A7KAT1EU) 21.5″ is a practical and energy-efficient display for everyday productivity and business environments. Specifications: 21.5-inch Full HD (1920 × 1080) display TN panel with LED backlighting 75Hz refresh rate (via HDMI) 5ms response time for basic smooth visuals HDMI 1.4 and VGA connectivity support
The LG UltraGear OLED Curved 45GR95QE-B is a premium gaming monitor built for players who want stunning visuals and ultra-smooth performance. With a large 45-inch curved OLED display, it surrounds you in lifelike color and deep contrast. Consequently, every frame feels more immersive and realistic. Moreover, the monitor delivers an incredibly fast refresh rate and quick response time. Because of this, motion appears sharp and fluid during intense gaming moments. Therefore, competitive gamers can enjoy a smoother and more responsive experience. In addition, the LG UltraGear OLED Curved 45GR95QE-B supports HDR10 for brighter highlights and richer shadows. Thanks to OLED technology, every pixel lights up individually, providing perfect blacks and vivid colors. Furthermore, its ultra-wide aspect ratio expands your field of view for a true cinematic feel. Connectivity is simple and versatile. With HDMI 2.1 and DisplayPort options, it easily connects to PCs and gaming consoles. As a result, you can switch between platforms without hassle. Comfort is also a focus. The ergonomic stand allows height, tilt, and swivel adjustments for an ideal viewing position. Thus, the LG UltraGear OLED Curved 45GR95QE-B ensures comfort during long gaming or creative sessions. Overall, this monitor combines speed, design, and visual excellence. Whether you’re gaming, editing, or streaming, it offers next-level immersion and performance in every scene. Specifications: Display : 44.5″ WQHD (3440×1440) 21:9 OLED Resolution : 3440×1440 Response Time : 0.03ms Refresh Rate : 240Hz Curvature : 800R
HP SPro 322pe Monitor Overview The HP SPro 322pe is a professional Full HD monitor built for daily business use. It delivers reliable performance and a clean design. As a result, it fits perfectly in offices and work-from-home setups. 21.5-Inch Full HD Display This monitor features a 21.5-inch Full HD resolution. Therefore, text appears sharp and easy to read. Moreover, images look clear and balanced. Because of this, it supports productivity tasks with ease. In addition, the compact size saves desk space. As a result, it works well in smaller work areas. Smooth and Stable Visual Experience The HP SPro 322pe offers smooth and stable visuals. Therefore, everyday tasks feel comfortable. In addition, scrolling and browsing look natural. This makes it suitable for long working hours. Eye Comfort for Long Sessions This monitor includes eye comfort features. As a result, it helps reduce eye fatigue. Moreover, the anti-glare screen improves visibility. Therefore, users stay focused throughout the day. Connectivity and Ease of Use The HP SPro 322pe includes essential connectivity options. As a result, it connects easily to most PCs. Moreover, setup is quick and straightforward. This saves time and effort. Professional Design and Flexibility The monitor features a simple and professional design. In addition, it supports VESA mounting. As a result, users can customize their workspace layout. Ideal for Office and Business Use This monitor focuses on efficiency and reliability. Moreover, it supports daily workloads without distraction. In conclusion, it is a solid choice for professional environments. Specifications: Display : 21.45″ VA Resolution : FHD (1920 X 1080) Connectivity: 1x HDMI 1.4, 1x VGA. Performance: 100Hz refresh rate for smooth motion, 5ms GtG response time.
RK61 RGB Mechanical Keyboard – Compact 60% keyboard with Blue switches, tri-mode (Bluetooth/2.4GHz/Wired), and vibrant RGB.Perfect for minimal desk setups and wireless performance with a unique W-W-B color design. Model: Royal Kludge RK61 Layout: 60% compact (61 keys, no numpad or F-row) Switch Type: Blue Mechanical Switches (clicky + tactile feedback) Backlight: RGB with multiple lighting modes & effects Connection Modes (3C): Bluetooth 5.0 – Pair with up to 3 devices Wired USB-C – For gaming and charging 2.4GHz Wireless (on 3-mode models) Connection Modes (3C): Bluetooth 5.0 – Pair with up to 3 devices Wired USB-C – For gaming and charging 2.4GHz Wireless (on 3-mode models) Battery: 1450mAh rechargeable battery Keycaps: ABS double-shot (W-W-B colorway: White-White-Black) Hot-Swappable: No (unless stated on specific variant) Compatibility: Windows, macOS, Android, iOS Anti-Ghosting: Full N-Key rollover Software Support: RK software for key remapping and RGB control (Windows only) Build Material: ABS plastic case, plastic plate Cable: Detachable USB-C cable included Dimensions: Approx. 290 x 100 x 40 mm Weight: ~500g
Logic Board 1.6GHz Core i5 (i5-5250U), 8GB RAM Replacement for (Early 2015-2017)
The MSI MAG 27CQ6F 27″ is a high-performance gaming monitor made for smooth and sharp visuals. It features a 27-inch curved display that enhances your viewing experience. With a 170Hz refresh rate, the MSI MAG 27CQ6F 27 delivers ultra-smooth action in every game. In addition, the 1ms response time ensures fast and clear visuals with no motion blur. This makes it ideal for fast-paced gaming. Moreover, the MSI MAG 27CQ6F 27″ uses a QHD resolution for crisp and detailed images. Thanks to its VA panel technology, colors appear rich and vibrant from all angles. Plus, the MSI MAG 27CQ6F 27 includes anti-flicker and low blue light features for better eye comfort. You can enjoy long hours of gaming without strain. The design of the MSI MAG 27CQ6F 27″ is sleek and modern, fitting perfectly into any setup. It supports tilt adjustment, so you can find the most comfortable viewing angle. Furthermore, its curved screen brings you closer to the action. For smoother gameplay, the MSI MAG 27CQ6F 27 “includes FreeSync support, reducing screen tearing and stuttering. You get a clear and stable picture every time you play. Also, the monitor has multiple ports for easy device connection. Whether you game, stream, or work, the MSI MAG 27CQ6F 27” offers reliable performance. Its fast response, great colors, and smart design make it a great choice. You’ll enjoy every detail and every moment on this monitor. To sum up, the MSI MAG 27CQ6F 27″ is perfect for gamers who want speed, clarity, and comfort in one screen. Specifications: Display : 27″ Rapid VA Resolution : 2560 x 1440 (WQHD) Refresh Rate : 180Hz Response Time : 0.5ms (GtG, Min.) Curvature : Curve 1500R
LG 32UN880-B 32 Inch UltraFine™ Display Ergo 4K HDR10 Monitor PICTURE QUALITY Screen Size 31.5″ Display Type IPS Response Time 5ms (GTG) Refresh Rate 60Hz Color Gamut (Typ.) DCI-P3 95% (CIE1976) Color Depth (Number of Colors) 1.07B Pixel Pitch (mm) 0.18159 x 0.18159 mm Aspect Ratio 16:9 Resolution 3840 x 2160 Brightness 350nits (typ) Contrast Ratio 1000:1 Viewing Angle 178º (R/L), 178º (U/D) Surface Treatment Anti-Glare INPUT/OUTPUT HDMI Yes x 2 DisplayPort Yes x 1 USB Type-C Yes Headphone Out Yes USB Down-stream Yes x 2 USB-C (DP Alternate Mode) Yes USB-C (Data Transmission) Yes POWER Type Adapter Input 100-240 Vac, 50/60 Hz Power Save/Sleep Mode (Max) 0.5W DC Off (Max) Less than 0.3W Power Consumption (Typ.) 160W Power Consumption (Max.) 55W Specifications: LG 32UN880-B 32 Inch UltraFine™ Display Ergo 4K HDR10 Monitor PICTURE QUALITY Screen Size 31.5″ Display Type IPS Response Time 5ms (GTG) Refresh Rate 60Hz Color Gamut (Typ.) DCI-P3 95% (CIE1976) Color Depth (Number of Colors) 1.07B Pixel Pitch (mm) 0.18159 x 0.18159 mm 1 Year Warranty
The ASUS VA249HG 24″ FHD Eye Care Monitor offers clear and sharp Full HD visuals. It provides bright colors and strong contrast. This makes movies, work, and daily tasks look clean and detailed. The 24-inch screen size is perfect for desks and small spaces. Moreover, the ASUS VA249HG 24″ FHD Eye Care Monitor includes a fast 75Hz refresh rate. This improves motion and reduces blur. It gives smoother movement during games and videos. This helps you enjoy a better viewing experience. In addition, the monitor features Adaptive Sync support. This reduces tearing and stuttering during fast action. Your screen stays smooth and steady. This makes it ideal for gamers and casual users. Furthermore, the ASUS VA249HG 24″ FHD Eye Care Monitor includes ASUS Eye Care technology. It reduces blue light and screen flicker. This helps protect your eyes during long hours of use. You can work, watch, or study more comfortably. Also, the monitor uses a VA panel for deep colors. It shows richer blacks and strong contrast levels. This improves the quality of movies and photos. It also works well for everyday design tasks. The clean and modern design of the ASUS VA249HG 24″ FHD Eye Care Monitor fits any workspace. The stand is stable and simple to adjust. You can tilt the screen for better comfort. This helps you find your ideal viewing angle. Overall, the ASUS VA249HG 24″ FHD Eye Care Monitor offers smooth performance, eye protection, and strong image quality. It is a great choice for home, office, and gaming use. It provides comfort, clarity, and value in one dependable display. Specifications: Display : 24″ IPS Resolution : FHD Refresh Rate : 120Hz Response Time : 1ms Model : 90LM02W0-B01171
Apple MacBook Pro 16" A2141 2019 Logic Board i7 2.6GHz 16GB 512GB 4GB VGA Apple MacBook Pro 16″ A2141 2019 Logic Board i7 2.6GHz 16GB 512GB 4GB VGA Intel 2.6 GHz Six Core i7-9th gen 16 GB RAM 512 GB SSD AMD RADEON PRO 5300M 4GB Intel UHD Graphics 630 Intel 2.6 GHz Six Core i7-9th gen 16 GB RAM 512 GB SSD AMD RADEON PRO 5300M 4GB Intel UHD Graphics 630
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 Cudy WR3000 AX3000 WiFi 6 Router delivers ultra-fast wireless speeds and improved network efficiency with the latest WiFi 6 technology. Designed for modern homes and offices, it offers high-speed Gigabit connectivity, wider coverage, and stable performance for multiple devices. AX3000 WiFi 6 Speed – Combined speeds of up to 3000Mbps for ultra-smooth streaming, gaming, and downloads. Next-Gen WiFi 6 Technology – Improved efficiency, lower latency, and better performance for multiple connected devices. Gigabit Ethernet Ports – High-speed WAN and LAN ports for maximum wired performance. Enhanced Coverage – High-performance antennas provide strong and stable WiFi signal across your space. OFDMA & MU-MIMO – Efficient data transmission to multiple devices simultaneously without slowing down the network. Multiple Operating Modes – Supports Router, Access Point, and Repeater modes for flexible setup. Advanced Security – WPA3/WPA2 encryption ensures a secure and protected network. 1 × Gigabit WAN Port 4 × Gigabit LAN Ports Dual Band WiFi (2.4GHz & 5GHz) WiFi 6 (802.11ax) Ethernet (RJ45) Wireless Security (WPA2/WPA3)
In the realm of monitors, the ViewSonic VA2201-H stands out as a reliable and clear solution, offering a perfect blend of visual excellence and simplicity for an enhanced viewing experience. Transitioning to its key features, the VA2201-H excels in providing crystal-clear visuals. This monitor is designed to deliver sharp and vibrant images, ensuring a visually engaging experience for work or entertainment. Moreover, this display impresses with its sleek and minimalistic design. The ViewSonic VA2201-H not only enhances the aesthetics of your workspace but also ensures straightforward setup, making it an ideal choice for users seeking simplicity. In addition to its functionality, the VA2201-H offers user-friendly controls and connectivity options, ensuring a hassle-free experience. This monitor seamlessly adapts to various settings, providing flexibility for different viewing preferences. Furthermore, ViewSonic’s commitment to user satisfaction is evident in the VA2201-H’s energy-efficient design and eye-care technology. It’s a reliable companion for extended viewing periods without compromising on visual quality. In conclusion, the ViewSonic VA2201-H redefines clarity and simplicity, combining clear visuals, sleek design, and user-friendly features. Elevate your viewing experience effortlessly with the VA2201-H – your clear and straightforward solution for visual excellence! Specifications Full HD 1080p 100Hz Refresh Rate 1ms Response Time Flicker-Free & Blue Light Filter View Mode: Game/Movie/Web/Text/Mono Inputs : HDMI/VGA Check other options here!
Step into the world of unparalleled gaming visuals with the AOC 24G4 24″ 180Hz Gaming Monitor. This cutting-edge display is designed to elevate your gaming experience to new heights. Boasting a 180Hz refresh rate, the AOC 24G4 ensures ultra-smooth gameplay, minimizing motion blur and providing a competitive edge. Immerse yourself in fluid graphics for a truly captivating gaming session. Equipped with a 24-inch screen, this gaming monitor strikes the perfect balance between size and clarity. Enjoy crisp details and vibrant colors, enhancing every pixel of your favorite games. Featuring AMD FreeSync technology, the AOC 24G4 synchronizes your monitor’s refresh rate with your graphics card, reducing screen tearing and stuttering. Say goodbye to disruptions and hello to seamless gaming performance. The sleek design of the monitor adds a touch of sophistication to your gaming setup. Its thin bezels create an expansive view, making you feel completely immersed in the action on-screen. Connectivity is a breeze with multiple ports, including HDMI and DisplayPort. Easily hook up your gaming console, PC, or other devices for a hassle-free gaming setup. In summary, the AOC 24G4 24″ 180Hz Gaming Monitor is a game-changer for avid gamers. With its high refresh rate, vivid display, and advanced features, it delivers an immersive gaming experience like no other. Upgrade your setup and take your gaming to the next level today! Specifications: Display : 23.8″ Fast IPS Resolution : 1920 × 1080 (FHD) Refresh Rate : 180Hz Response Time : 1ms
The BenQ ZOWIE XL2566K TN 360Hz 24.5″ Gaming Monitor is designed for serious gamers. Its 360Hz refresh rate ensures incredibly smooth and fluid motion, reducing blur and ghosting in fast-paced games. With a 24.5″ TN panel, this gaming monitor delivers vibrant colors and sharp images. The TN technology ensures low response times, making it ideal for competitive gaming where every millisecond counts. Setting up the BenQ ZOWIE XL2566K is simple and straightforward. The adjustable stand allows you to find the perfect viewing angle, ensuring comfort during long gaming sessions. Experience the benefits of DyAc+ Technology, which enhances clarity and reduces motion blur. This feature is perfect for first-person shooters and fast-action games, giving you a clear advantage over your opponents. The BenQ ZOWIE XL2566K offers multiple connectivity options, including HDMI, DisplayPort, and USB. This versatility allows you to connect various devices and switch between them with ease. With its Black eQualizer and Color Vibrance settings, you can customize your gaming experience. These features help you spot enemies in dark areas and adjust color settings to suit your preferences. In conclusion, the BenQ ZOWIE XL2566K TN 360Hz 24.5″ Gaming Monitor is a top choice for gamers seeking an edge in performance. Upgrade to this monitor and enjoy ultra-smooth gameplay and exceptional clarity. Elevate your gaming setup today and dominate the competition. Specifications: Display : 24.5″ TN Resolution : 1920 x 1080 Refresh Rate : 360Hz
