Laptop Battery for Acer AS10D31 AS10D51 Aspir 4741 5253 5251 5336 5349 5551 5552 5560 5733 5733Z TravelMate 5740 5735 5735Z 5740G Gateway NV55C NV50A NV53A NV59C Laptop Battery for Acer AS10D31 AS10D51 Aspir 4741 5253 5251 5336 5349 5551 5552 5560 5733 5733Z TravelMate 5740 5735 5735Z 5740G Gateway NV55C NV50A NV53A NV59C [6 Cells/58WH] About this item Battery type: Li-ion; Cells: 6-cell; Capacity:5200mAh / 58Wh; Voltage: 11.1V Made of High-Quality Materials, Grade A Battery cells and Packed with Safety Features. Compatible part number:31CR19/65-2 / 31CR19/66-2 / 3ICR19/66-3 / 31CR19/65-2 / AS10D31 / AS10D3E / AS10D41 / AS10D51 / AS10D61 / AS10D71 / AS10D75 / AS10G3E / AS10D / BT.00603.111 / BT.00606.008 / BT.00607.125 / BT.00607.127 / AK.006BT.075 / AS10D73 / BT.00603.117 / BT.00605.062 / BT. 00607.130 / AK.006BT.080 / AS10D75 / BT.00603.124 / LC.BTP00.123 / BT.00604.049 / BT.00605.065 / BT.00607.126 Compatible Models 1:Acer Aspire 4250 4253 4339 4349 4551 4551G 4738 4738Z 4739 4739Z 4743 4743Z 4741 4750 4750G 4755 4755G 4752 4752G 4752Z 4771 5251 5252 5253 5336 5349 5551 5551G 5552G 5560 5560G 5733 5741 5741G 5741Z 5742 5742G 5742Z 5742ZG 5750 5750G 5750Z 5750ZG 5755 5755G 5736 5736Z 7741G 7741Z-5731 7741Z-4643 7551G 7552G 7750Z Compatible Models 2:Acer TravelMate 4740 4750 5335 5542 5542G 5735 5735Z 5740 5740G 5740Z 5742 5742G 5742Z 5742ZG 5744 5760 6495T 7740 7740G 7750 7750G 7750Z 8472 8473 8573 TM5742;Gateway NV57H NV55S NV50A NE56R NV51B NV75S NV77H NE51B NV76R NV52L NV73A NV79C NV56R NV49C.
WiWU Waterproof Large Capacity Minimalist Backpack Business Laptop Backpack Bags with Multi-Pockets For digital gadgets Minimalist Style Water-resistant material,Polyester Large Capacity Have Stock Size:15.6 inch
The Xiaomi TV A Pro 65 2026 delivers sharp visuals with its 65″ QLED 4K display. It shows clear detail in movies, games, and series. The 3840 × 2160 resolution brings rich textures and crisp images. This makes watching and gaming feel immersive and cinematic. Moreover, the Xiaomi TV A Pro 65 2026 uses a QLED panel covering a wide color gamut. Colors appear vivid, bright, and natural. Dark scenes stay deep, and highlights stay clear. In addition, the TV supports HDR standards like HDR10+ and HLG. This enhances color range, brightness, and contrast. Scenes look more realistic and cinematic. Furthermore, the Xiaomi TV A Pro 65 2026 includes smooth motion processing. Fast scenes stay fluid without blur or stutter. Also, the smart TV system offers easy access to streaming apps and content. You can use voice control and casting with built-in smart features. Connecting devices and streaming content becomes quick and simple. Moreover, the audio performance delivers clear sound and good balance. Dialogue and music come out strong and balanced. This makes movies and series more immersive without needing extra speakers. Overall, the Xiaomi TV A Pro 65 2026 blends picture quality, cinematic color, and smart features in one strong TV. It works well for movies, gaming, and everyday entertainment. This television is ideal for users seeking a high-quality display for home viewing. Specifications: Display Type QLED Resolution 4K, 3840 × 2160 Speaker 2 x 10W Dimensions including base (L × W × H) 1445*391*900mm Dimensions not including base (L × W × H) 1445*75*833mm CPU Quad cortex A55 GPU Mali-G52 MC1 RAM 2GB ROM 8GB
The Gigabyte 25″ 200Hz GS25F2 Gaming Monitor is built for gamers who want smooth and fast gameplay. It features a 25-inch display with Full HD resolution for clear and detailed visuals. This monitor gives you sharp images with excellent color quality. With its ultra-fast 200Hz refresh rate, the Gigabyte 25″ 200Hz GS25F2 Gaming Monitor reduces motion blur and screen tearing. Gamers will enjoy smooth and responsive action in every game they play. It also features a 1ms response time, which helps reduce lag and ghosting during fast movements. As a result, every action appears more accurate and real-time. The Gigabyte 25″ 200Hz GS25F2 Gaming Monitor supports AMD FreeSync for tear-free visuals. This ensures that the screen refresh rate matches the graphics card’s performance. Moreover, the monitor has built-in gaming features like crosshairs and timers to improve your gaming experience. These tools give players an edge during competitive gameplay. The sleek and modern design of this gaming monitor fits perfectly in any gaming setup. It includes a thin bezel for a more immersive viewing experience. Additionally, it has multiple input ports like HDMI and DisplayPort for easy connection to your devices. You can connect it to your PC, console, or laptop quickly. The Gigabyte 25″ 200Hz GS25F2 Gaming Monitor is also designed for long use. It includes low blue light and flicker-free technology to reduce eye strain. In conclusion, this gaming monitor is ideal for gamers who want speed, clarity, and comfort. It’s a great upgrade for serious and casual gamers alike. Specifications: Display : 24.5″ SS IPS Resolution : 1920 x 1080(FHD) Refresh Rate : 200 Hz Response Rate : 1ms (GTG) Speaker : 2x 2W
AOC 27B3HM 27-inch VA panel monitor delivers reliable everyday performance for office work, study, and casual entertainment. It focuses on clear Full HD visuals, stable refresh rate, and comfortable long-term viewing. Additionally, it features a 27-inch VA panel with Full HD resolution (1920 × 1080). This panel provides strong contrast and deeper blacks, so it improves readability and image depth in daily use. Moreover, it supports up to a 75Hz refresh rate. As a result, it offers smoother motion than standard 60Hz displays, especially during scrolling and light gaming. The monitor includes a 4ms response time (GtG). Therefore, it helps reduce motion blur and keeps visuals clearer during fast transitions. In addition, it supports Adaptive Sync technology. This reduces screen tearing and stuttering, so visuals stay stable across supported graphics cards. Furthermore, it includes Flicker-Free and Low Blue Light features. So it helps reduce eye strain during long working or study sessions. AOC 27B3HM 27-inch VA monitor provides a simple, stable, and comfortable display solution for everyday productivity and casual use. Check out other option here! Specifications: 27-inch VA panel with Full HD 1920 × 1080 resolution 75Hz refresh rate for smoother everyday visuals 4ms GtG response time for clearer motion Adaptive Sync for tear-free performance Flicker-Free and Low Blue Light eye comfort technology
The MSI MAG 321UPX QD‑OLED 32″ 240Hz Gaming Monitor delivers stunning visuals and ultra‑fast performance for gamers and creators. It features a 32‑inch QD‑OLED panel for vibrant colors and deep blacks. Moreover, the 240Hz refresh rate makes gameplay ultra‑smooth and responsive. Also, its 0.03ms response time cuts motion blur to near zero. Because of HDMI 2.1 and DisplayPort 1.4, it supports high refresh on both PC and console. Furthermore, it offers 1440p resolution for sharp visuals without taxing your GPU. Additionally, the monitor covers 99% DCI‑P3 for rich and accurate color reproduction. Besides that, the HDR True Black 400 enhances contrast in bright and dark scenes. Also, the MSI MAG 321UPX QD‑OLED 32″ 240Hz Gaming Monitor includes HDMI VRR support for tear‑free gameplay. In addition, it features Adaptive‑Sync for smooth performance under varying frame rates. Moreover, the embeddable game mode presets help you optimize visuals with one button. Because it offers crosshair overlays and timers, it helps improve your competitive play. Also, the low‑blue light and flicker‑free technology protect your eyes during long sessions. Furthermore, the stand allows height, tilt, swivel, and pivot adjustments for ergonomic comfort. Also, the sleek design with ultra‑thin bezels gives a modern look to your setup. Moreover, built‑in 2 W speakers provide basic audio without extra clutter. Besides, the monitor includes a KVM feature for easy switching between two systems. Furthermore, connectivity covers USB‑C with 90 W power delivery for laptops. As a result, you can charge devices while transmitting video and data. Because of its USB hub, peripherals remain connected without cable swapping. Also, the 240Hz overclock mode boosts responsiveness in fast‑paced games. In addition, factory calibration ensures color accuracy out of the box. Therefore, creators benefit from both gaming performance and content work quality. Also, this monitor supports console gamers with up to 240Hz via HDMI 2.1. Furthermore, thanks to OLED’s fast refresh, motion clarity is unmatched. Moreover, HDR content truly pops with deep blacks and vibrant highlights. As a result, the MSI MAG 321UPX QD‑OLED 32″ 240Hz Gaming Monitor excels in both competitive gaming and creative work. Finally, upgrade your experience with this powerful, immersive, and feature‑rich gaming monitor. Specifications: Display : 31.5″ QD-OLED Resolution : 3840×2160 (UHD) Refresh Rate : 240Hz Response Rate : 0.03ms (GTG)
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
✅ Full Specifications: Model: HyperX Cloud II Headphone Type: Over-Ear, Closed-Back Gaming Headset Connection: Wired USB for PC/Mac 3.5mm jack for consoles & mobile Drivers: 53mm Neodymium Surround Sound: Virtual 7.1 Surround Sound (via USB sound card) Frequency Response: Headphones: 15Hz – 25kHz Microphone: 50Hz – 18kHz Impedance: 60 Ohms Sound Pressure Level: 98 ± 3 dB Microphone: Detachable noise-canceling mic TeamSpeak & Discord certified Build: Aluminum frame Memory foam ear cushions Leatherette or velour ear pads Cable Length: 1m headset cable 2m extension with USB control box Compatibility: PC, Mac, PS4, PS5, Xbox (via 3.5mm), Nintendo Switch, Mobile
NB OMS035 NB Desk Mount with Keyboard Tray for 19-27 Inch Screens Up to 9Kg Load Full Motion • Desk Stand offers comfortable viewing position that promotes healthy movements and requires minimum space at home or the office • Fits most 19 to 27 inch screens with ultra-wide foldable keyboard tray • Full motion mount with rotation 360°, swivel ±90° and Tilt angle +12° to -15° • The mount has an extension of 40” (1020 mm), retraction of 3.9” (100mm) and an upright lift distance of 18.9” (480mm) • Design includes a durable gas-strut to hover at any working position • Built-in extra shelf for phone and small goods storage • Supports load from 2 to 9 kg • Mounting VESA compliance 75×75 mm and 100×100 mm • Product dimensions: 24 x 7.3 x 14.4 cm Specifications: Specifications • NB Desk Mount with Keyboard Tray for 19-27 Inch Screens Up to 9Kg Load Full Motion • Desk Stand offers comfortable viewing position that promotes healthy movements and requires minimum space at home or the office • Fits most 19 to 27 inch screens with ultra-wide foldable keyboard tray • Full motion mount with rotation 360°, swivel ±90° and Tilt angle +12° to -15° • The mount has an extension of 40” (1020 mm), retraction of 3.9” (100mm) and an upright lift distance of 18.9” (480mm)
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.
13" Mid-2017 Apple MacBook Pro A1708 Logic Board 16Gb 2.3Ghz i5 13″ Mid-2017 Apple MacBook Pro A1708 Logic Board 16Gb 2.3Ghz i5
Are you in search of a monitor that delivers both smooth performance and vibrant visuals? Look no further than the MSI Pro 27″ 100Hz Monitor. Designed to meet the demands of both gamers and professionals, this monitor offers a seamless viewing experience. First and foremost, let’s discuss its refresh rate. With a refresh rate of 100Hz, this monitor ensures buttery-smooth visuals, free from motion blur or screen tearing. Whether you’re gaming or working, every frame is delivered with precision and clarity. Additionally, the 27-inch display provides ample screen real estate, allowing for immersive gaming sessions or productive work environments. Say goodbye to squinting at small screens and hello to expansive viewing experiences. Transitioning to color accuracy, the MSI Pro monitor boasts vibrant and true-to-life colors, thanks to its advanced display technology. Whether you’re editing photos, watching movies, or gaming, every hue is rendered with stunning accuracy. Moreover, the monitor’s sleek and minimalist design adds a touch of sophistication to any workspace or gaming setup. Its thin bezels maximize screen space, while the adjustable stand ensures ergonomic viewing angles for maximum comfort. Furthermore, with multiple connectivity options, including HDMI and DisplayPort, this monitor seamlessly integrates with your existing setup. Whether you’re connecting a gaming console, PC, or laptop, setup is quick and hassle-free. In conclusion, the MSI Pro 27″ 100Hz Monitor is a versatile display solution that excels in both performance and aesthetics. Whether you’re a gamer, content creator, or professional, this monitor delivers an exceptional viewing experience that enhances productivity and enjoyment. Upgrade your display today and immerse yourself in the world of vibrant visuals and smooth performance. Specifications: Display : 27″ Resolution : 1920 x 1080 (FHD) Refresh Rate : 100Hz Response Rate : 1ms
The MSI MAG 275UPD E14 27-inch gaming monitor is built for competitive and immersive gameplay, offering both ultra-sharp visuals and extremely high refresh rates. Its IPS panel delivers vibrant colors and wide viewing angles, making it suitable for gaming, content creation, and everyday use. Moreover, the monitor supports dual display modes, allowing users to switch between ultra-detailed 4K resolution and ultra-fast Full HD performance. This flexibility allows gamers to enjoy crisp visuals for cinematic games or switch to very high refresh rates for competitive titles that require maximum smoothness and responsiveness. Additionally, fast response times help reduce motion blur and ghosting, ensuring smoother gameplay during fast-moving scenes. The MAG 275UPD E14 also features modern connectivity options and an ergonomic design that fits gaming or professional setups. Furthermore, its slim bezels enhance immersion in multi-monitor setups. Therefore, this monitor suits users who want both high resolution and esports-level speed. Finally, it combines versatility, speed, and image quality in one powerful gaming display. Specifications: Screen size: 27-inch IPS panel Resolution modes: 4K UHD (3840×2160) or Full HD (1920×1080) Refresh rate: 144Hz at 4K / up to 288Hz at FHD Response time: 1ms class gaming response time Connectivity: HDMI and DisplayPort inputs for PC and consoles
This is a logic board (motherboard) for the MacBook Pro 15" model A1398 (year 2015) with an Intel Core i7 processor and 16 GB of RAM. It’s the central brain of the laptop—everything else plugs into it. If your MacBook won’t turn on, has hardware faults, or logic-board damage, replacing this can restore full functionality (just make sure you choose the right version). This is a logic board (motherboard) for the MacBook Pro 15″ model A1398 (year 2015) with an Intel Core i7 processor and 16 GB of RAM. It’s the central brain of the laptop—everything else plugs into it. If your MacBook won’t turn on, has hardware faults, or logic-board damage, replacing this can restore full functionality (just make sure you choose the right version). This logic board is a high-quality replacement for the 2015 MacBook Pro 15″ Retina (model A1398). It features: Processor: Intel Core i7 (various speed variants) Memory: 16 GB soldered RAM (non-upgradeable) Graphics: Depending on version, either integrated Intel Iris Pro or dual graphics (Intel + AMD Radeon R9 M370X) Chipset & Board Info: Part numbers like 820-00138-A, 820-00163-A are common for these boards Compatibility / Model IDs: Works with MacBookPro11,4 / MacBookPro11,5 (EMC numbers 2909 / 2910) for 2015 A1398 models Ports & I/O Integrated: USB 3.0, HDMI, Thunderbolt 2, SD card slot, audio jack, etc. (same as original MacBook Pro 2015) Storage Interface: PCIe SSD slot (Apple’s proprietary SSD interface) Power & Connectors: Logic board includes connections for battery, fans, display, keyboard, trackpad, I/O board flex cables, etc. Condition / Variants: These boards are often “used / tested” when sold as replacements. Always check that all ports and soldered chips are intact. Risks & Notes: You must match the correct board variant (integrated vs dual GPU) or you can face compatibility issues or missing graphics functions.
BenQ RE6504 65” 4K UHD Interactive Flat Panel with Android 13 is a large interactive display designed for classrooms, meeting rooms, and training environments. It combines a 4K touchscreen, built-in Android system, and collaboration tools for interactive presentations. It features a 65-inch IPS panel with 3840 × 2160 (4K UHD) resolution. Therefore, it delivers sharp visuals and wide viewing angles for group interaction. In addition, it supports up to 40-point touch input for multi-user collaboration and writing. Moreover, the panel runs Android (EDLA certified, Android 14/13 depending on region) with built-in apps and Google services support. As a result, users can install apps, browse content, and run teaching or presentation tools directly on the display without an external PC. The RE6504 uses precision IR touch technology. Therefore, it provides fast and accurate writing with low delay. In addition, it includes anti-glare and tempered 9H glass for durability and better visibility in bright rooms. Furthermore, it includes multiple connectivity options such as HDMI, USB, USB-C, OPS slot, and LAN. As a result, it supports laptops, media players, and modular PC systems for flexible installation. It also includes built-in speakers and collaboration software tools. Therefore, it supports presentations, whiteboarding, screen sharing, and remote teaching or meeting scenarios. Finally, the BenQ RE6504 delivers a large 4K interactive workspace with Android integration, multi-touch control, and strong connectivity for education and business use. Specifications: Display: 65-inch IPS panel with 3840×2160 4K UHD resolution Touch: Up to 40-point multi-touch for collaboration System: Built-in Android (EDLA support with Google services) Glass: Anti-glare 9H tempered glass for durability Connectivity: HDMI, USB, USB-C, OPS slot, and LAN support
The HP Series 5 Pro 23.8″ FHD USB‑C Conferencing Monitor delivers crisp visuals on a 23.8‑inch Full HD IPS screen with a 16:9 aspect ratio. Additionally, it features a built‑in 5 MP Poly Studio tiltable webcam. This webcam, combined with AI noise reduction, ensures clear video and audio during calls. Moreover, the monitor supports USB‑C video input with up to 100 W power delivery. It also provides USB‑C data transfer, HDMI 2.0, DisplayPort 1.4, USB‑A ports with one charging port, an audio combo jack, and an RJ‑45 Ethernet port. These connections simplify hybrid work setups. Furthermore, the ergonomic stand allows height adjustment for comfort. The ambient light sensor with HP Eye Ease reduces blue light while preserving color accuracy. The monitor incorporates recycled materials in its design and comes with a three‑year limited warranty for peace of mind. Specifications: 23.8″ Full HD (1920 × 1080) IPS display with 350 nits brightness and 1500:1 contrast Built‑in 5 MP Poly Studio webcam with AI noise reduction USB‑C video with up to 100 W power delivery and USB‑C data port HDMI 2.0, DisplayPort 1.4, USB‑A ports, Ethernet, and audio combo jack Ergonomic stand with height adjustment and HP Eye Ease ambient light sensor
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.
Philips 241V8L6/69 23.6-inch monitor delivers clear and reliable performance for everyday work and home use. It focuses on Full HD clarity, strong contrast, and eye comfort features for long sessions. Additionally, it features a 23.6-inch VA panel with Full HD resolution (1920 × 1080). This panel provides deep contrast and vivid colors, so it improves image quality for documents, browsing, and media. Moreover, it supports a 75Hz refresh rate with Adaptive Sync. As a result, it delivers smoother motion and reduces screen tearing during video playback and light gaming. The monitor includes a 4ms GtG response time. Therefore, it handles motion clearly for everyday tasks and casual entertainment. In addition, it offers a 3000:1 contrast ratio with SmartContrast technology. This enhances dark scenes and improves overall image depth. Furthermore, it includes Flicker-Free technology and LowBlue Mode. So it helps reduce eye strain during long working hours. It also provides HDMI and VGA connectivity with an anti-glare screen surface. This ensures compatibility with modern and older devices while maintaining comfortable viewing. Philips 241V8L6/69 23.6-inch monitor provides balanced performance, solid contrast, and essential comfort features for daily productivity. Specifications: 23.6-inch VA panel with Full HD 1920 × 1080 resolution 75Hz refresh rate with Adaptive Sync support 4ms GtG response time for smooth visuals 3000:1 contrast ratio with SmartContrast Flicker-Free and LowBlue Mode for eye comfort
Genuine-spec keyboard replacement for MacBook Pro 14" & 16" (2021–2025, M1 Pro/Max to M4 Pro/Max)—available in US QWERTY or UK QWERTY (with £ symbol). Features Apple’s Magic Keyboard with scissor-switch mechanism, full backlighting, and precise OEM fit. Genuine-spec keyboard replacement for MacBook Pro 14″ & 16″ (2021–2025, M1 Pro/Max to M4 Pro/Max)—available in US QWERTY or UK QWERTY (with £ symbol). Features Apple’s Magic Keyboard with scissor-switch mechanism, full backlighting, and precise OEM fit. US Layout: Wide Enter key @ above 2, # above 3 Standard inverted-T arrow keys Wide Enter key @ above 2, # above 3 Standard inverted-T arrow keys UK Layout: Tall vertical Enter key £ symbol on key 3 @ accessed via Right Alt + 2 Matches Apple’s official UK regional configuration Tall vertical Enter key £ symbol on key 3 @ accessed via Right Alt + 2 Matches Apple’s official UK regional configuration Keyboard Type: Apple Magic Keyboard with scissor-switch mechanism Backlighting: Full per-key white backlight with ambient light sensor support Function Row: Full-height physical function keys (F1–F12) with macOS shortcut toggling Build Quality: OEM-grade keycaps, consistent actuation force, and precise top-case alignment
