The HP V28 4K Monitor delivers sharp and vivid visuals for work and entertainment.It features a 28-inch 4K UHD display that shows lifelike detail and rich color.Moreover, the slim design fits well on desks at home and in office setups. This monitor uses an advanced panel for wide viewing angles and consistent color from different positions.Additionally, the 4K resolution brings out clear text and crisp images for videos and photos.Anti-glare coating helps reduce reflections in bright lighting. The HP V28 4K also includes HDMI and DisplayPort inputs for flexible connectivity.Furthermore, tilt adjustment lets you find a comfortable viewing angle.Low blue light and flicker-free features help reduce eye strain during long use. This display suits professionals, content creators, and home users alike.Therefore, it supports productivity, creative work, and media streaming.Finally, it combines high picture quality, versatile connections, and comfort features for everyday use. Specifications: 28″ 4K UHD (3840 × 2160) panel HDMI + DisplayPort ports for flexible connection Anti-glare coating for comfortable viewing Tilt-adjustable stand for ergonomic use Wide viewing angles for consistent color
WiWU 20W fast Charger for Mobile Phone with USB C Quick Power Adapter in white Wall charger
A31N1319 A41N1308 A41 Battery for Asus X451 X551 X451C X451CA X551C X551CA X551CA-SX024H X551CA-SX029H X551CA-DH21 X551CA-0051A2117U D550 0B110-00250100 About this item Fully compatible with your original battery, brand new from Professional Manufacturer, CE RoHS certified, grade A cells ensure fast charges and low power consumption; Built-in circuit protection ensures safety and stability. Expected operation time: 1.5-3 hours. This may vary depending on the device type and how it is used. Fits models: X451 X551 X451C X451CA X551C X551CA A41 D550 X45li9c X551CA-0051A2117U X551CA-DH21 X551CA-SX024H X551CA-SX029H Compatible Part Numbers 0B110-00250100 A41N1308 A31LJ91 A31N1319 A41N1308 X45LI9C YU12008-13007D YU12125-13002 More Part numbers of compatible batteries and Computers are listed in the Product Description
A reliable pre-owned Lenovo ThinkPad T460 with 14" display, 6th Gen Core i5, 8GB RAM, and 256GB SSD—built for durability, security, and everyday business productivity.
VSTAR UA150 1500VA UPS | Simulated Sine Wave Output | 230V | 24VDC Battery System | 50/60Hz Auto Sensing | Compact Design | Black Color | Model UPS-UA150 Robust 1500VA Power CapacityThe VSTAR UA150 delivers 1500VA of reliable backup power to safeguard your essential electronics, including PCs, servers, routers, and security systems. Dual Voltage CompatibilitySupports 110/120V or 220/230/240V input, making it ideal for use in a variety of international voltage environments. Stable 230V Output with AVR FunctionalityMaintains a consistent 230VAC output, protecting connected devices from voltage fluctuations and surges. Simulated Sine Wave OutputProvides a simulated sine wave waveform suitable for most common electronics, especially during normal backup operations. Auto-Sensing FrequencyAutomatically detects 50Hz or 60Hz power sources, adapting to your electrical environment without manual adjustments. Compact, Space-Saving DesignMeasuring just 353 x 149.3 x 162 mm, the UA150 fits neatly on or under desks, in server cabinets, or against walls. Reliable 24VDC Battery SystemOperates on a 24VDC internal battery configuration, delivering longer runtimes and better reliability during outages. Universal Output SocketsEquipped with IEC-style or universal output sockets that are compatible with a wide range of devices. Sleek Black FinishA clean and modern black color allows it to blend seamlessly into professional or home environments. Ideal for Home or OfficeProtects critical electronics, telecom gear, and POS systems from data loss and downtime.
Samsung Odyssey G5 G50F QHD 180Hz Gaming Monitor delivers smooth gameplay and sharp visuals for competitive players. It features a 27-inch QHD display with high detail and clarity. As a result, games appear more immersive and realistic on screen. Moreover, the Fast IPS panel ensures consistent colors and wide viewing angles. It maintains clear visuals from different positions. In addition, HDR10 enhances brightness and contrast for deeper blacks and brighter highlights. Furthermore, the 180Hz refresh rate and 1ms response time reduce motion blur and lag. This allows faster reactions during intense gameplay. NVIDIA G-Sync compatibility and AMD FreeSync also help deliver smooth and stable frames. Finally, Samsung Odyssey G5 G50F QHD 180Hz Gaming Monitor includes gaming tools like Black Equalizer and Virtual Aim Point. These features improve visibility and accuracy. Therefore, players gain better control and performance in every match. Specifications: 27-inch QHD (2560×1440) resolution for sharp and detailed visuals Fast IPS panel with wide 178° viewing angles and consistent colors 180Hz refresh rate with 1ms response time for smooth gameplay HDR10 support for improved contrast and realistic image depth NVIDIA G-Sync Compatible and AMD FreeSync for reduced tearing and lag
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
HP M24f Monitor Overview The HP M24f is a 24-inch Full HD monitor designed for work and everyday use. It offers a slim design and reliable performance. As a result, it suits offices, home setups, and students. 24-Inch Full HD Display This monitor features a 24-inch Full HD resolution. Therefore, text appears sharp and easy to read. Moreover, images look clear and well balanced. Because of this, it supports long working sessions comfortably. In addition, the wide viewing angles improve screen visibility. As a result, content stays clear from different positions. Smooth Visual Performance The HP M24f delivers smooth visuals for daily tasks. As a result, scrolling and browsing feel natural. Furthermore, the display maintains consistent brightness. This improves overall viewing comfort. Eye Comfort and Anti-Glare Screen This monitor includes eye comfort features. Therefore, it helps reduce eye strain. In addition, the anti-glare coating minimizes reflections. As a result, users can work comfortably in bright rooms. Connectivity and Compatibility The HP M24f includes HDMI and VGA ports. As a result, it connects easily to modern and older devices. Moreover, setup is quick and simple. Therefore, users can start working right away. Slim Design and Mounting Options The monitor features a sleek and modern design. In addition, it supports VESA mounting. As a result, users can save desk space and customize layouts. Ideal for Daily Use This monitor focuses on clarity and reliability. Moreover, it suits office work, browsing, and media viewing. In conclusion, the HP M24f offers a balanced and efficient display solution. Specifications: 60.5 cm (23.8) FHD (1920 x 1080) Sustainable; Adaptive Sync; Eyesafe® Certified; IPS panel 1 VGA; 1 HDMI 1.4 (with HDCP support)
AOC 27G50Z 27-inch 260Hz gaming monitor delivers ultra-fast performance for competitive esports gaming. It focuses on extreme refresh rate, ultra-low response time, and precise motion clarity for high-level gameplay. Additionally, it features a 27-inch Fast IPS panel with Full HD resolution (1920 × 1080). This panel provides sharp visuals and accurate colors, so it ensures consistent performance during intense gaming sessions. Moreover, it supports up to a 260Hz refresh rate (overclocked, 240Hz native). As a result, it delivers extremely smooth motion and maximizes high FPS gameplay performance. The monitor includes 1ms GtG and 0.3ms MPRT response time. Therefore, it reduces motion blur and ghosting for clearer fast-action visuals. In addition, it supports Adaptive Sync technology and low input lag mode. This reduces screen tearing and ensures precise, responsive gameplay. Furthermore, it supports HDR10 and gaming features like Shadow Control and Game Mode presets. These features improve contrast, visibility, and in-game performance tuning. The monitor also includes HDMI 2.0 and DisplayPort 1.4 connectivity with a frameless esports design. It supports modern gaming setups with clean and simple installation. AOC 27G50Z 27-inch 260Hz gaming monitor provides top-tier speed, ultra-smooth visuals, and competitive features for serious gamers. Specifications: 27-inch Fast IPS panel with Full HD 1920 × 1080 resolution 260Hz refresh rate (240Hz native, overclocked) 0.3ms MPRT and 1ms GtG response time Adaptive Sync with low input lag mode HDR10 with gaming presets and image controls
Kingston NV3 1TB NVMe SSD — ultra-fast PCIe 4.0 storage in a compact M.2 form.• Read up to 6,000 MB/s • Write up to 4,000 MB/s • 320 TBW enduranceForm Factor: M.2 2280 | Interface: PCIe 4.0 x4 | Warranty: 5-year limitedSKU: SNV3S/1000G Full Details: The Kingston NV3 PCIe 4.0 NVMe M.2 1TB SSD gives you ultra-fast performance and reliable storage for laptops and desktops. Built with PCIe 4.0 technology, it delivers read speeds up to 6,000 MB/s and write speeds up to 4,000 MB/s, making it perfect for gaming, content creation, or simply speeding up your system. PCIe 4.0 × 4 NVMe interface for lightning-fast speed Compact M.2 2280 design for easy installation Up to 6,000 MB/s read and 4,000 MB/s write speeds 1TB capacity for games, media, and apps Low power use and heat for better efficiency Works with most modern desktops and laptops that support M.2 NVMe (PCIe) drives. Backward compatible with PCIe 3.0 systems (at lower speeds). Kingston NV3 1TB M.2 NVMe SSD Quick start/warranty guide
Viewsonic VA2406-MH 24” The Viewsonic VA2406-MH 24” is a 24” Full HD monitor with HDMI . and VGA input for business or home usage.Delivering a stunning image quality . this monitor provides six ViewMode presets that deliver optimized screen performance based on your needs. The eye care technology that comes standard with all VA monitors helps to eliminate eyestrain from extended viewing periods. A VESA-compatible mount makes this monitor is easy to setup on the wall or with a wide range of industry-standard mounts. Viewsonic VA2406-MH 24” Viewing Clarity from Wide Angles Enjoy superb performance and better viewing quality from horizontal to vertical angles. With SuperClear® Vertical Alignment panel technology, the monitor remains clear and in good contrast color . from 178° all around, whether you are looking at the screen from above, below, the front. Viewsonic VA2406-MH 24” Full HD 1080p Full HD 1920×1080 resolution creates unbelievably clear pixel-by-pixel image performance. Experience amazing clarity and detail while working, gaming, or enjoying the latest entertainment. Comfortable Viewing Flicker-Free technology and a Blue Light Filter help to eliminate eye strain from extended viewing periods. Color Rendering Options ViewSonic’s ViewMode feature offers “Game”, “Movie”, “Web”, “Text”, and “Mono” presets. These presets enhance gamma curve, color temperature, contrast, and brightness to deliver an optimized viewing experience for different uses. Low Energy Consumption Designed for energy efficiency in mind, ViewSonic’s Eco Mode results in a smaller carbon footprint and reduced office overhead costs. Specifications Viewsonic VA2406-MH 24” Display Size (in.): 24 Viewable Area (in.): 23.8 Panel Type: VA Technology Resolution: 1920 x 1080 Resolution Type: FHD (Full HD) Static Contrast Ratio: 5,000:1 (typ) Dynamic Contrast Ratio: 50M:1 Light Source: LED Brightness: 250 cd/m² (typ) Colors: 16.7M Color Space Support: 8 bit (6 bit + FRC) Aspect Ratio: 16:9 Response Time (Typical GTG): 4ms Viewing Angles: 178º horizontal, 178º vertical Backlight Life (Hours): 30000 Hrs (Min) Curvature: Flat Refresh Rate (Hz): 75 Blue Light Filter: Yes Flicker-Free: Yes Color Gamut: NTSC: 72% size (Typ) sRGB: 104% size (Typ) Pixel Size: 0.275 mm (H) x 0.275 mm (V) Surface TreatmenViewsonic VA2406-MH 24” t: Anti-Glare, Hard Coating (3H) Compatibility PC Resolution (max): 1920×1080 Mac® Resolution (max): 1920×1080 PC Operating System: Windows 10/11 certified; macOS tested Mac® Resolution (min): 1920×1080 Connector VGA: 1 3.5mm Audio Out: 1 HDMI 1.4: 1 Power in: DC Socket (Center Positive) Specifications: Key Features SuperClear® VA panel Eye-care technology for comfortable viewing Eco-mode for low energy consumption ViewMode color rendering options HDMI and VGA inputs for connectivity HD 24″ Display 1 year warranty Manufacturer Link
The Alienware AW2524HF 24.5″ 500Hz Gaming Monitor is built for pro gamers who want unmatched speed and clarity. It features a 24.5-inch Full HD display with a Fast IPS panel for accurate colors and wide viewing angles. This monitor offers a blazing 500Hz refresh rate through DisplayPort when overclocked, and up to 240Hz via HDMI, making gameplay ultra-smooth. A 0.5ms response time helps reduce motion blur, so every frame stays sharp and clean. It supports NVIDIA G-SYNC, giving you tear-free and fluid motion across demanding games. You also get support for HDR10 and 99% sRGB color coverage, bringing vivid visuals to every scene. Connectivity options are flexible, including two HDMI 2.0 ports, one DisplayPort 1.4, four USB 3.2 Gen 1 ports, and one USB upstream port. There’s also a built-in USB hub for quick accessory access. The stand is fully adjustable with tilt, swivel, pivot, and height settings, making long sessions more comfortable. You can also use VESA mounting for a custom setup. Extra features like AlienFX lighting and NVIDIA Reflex Latency Analyzer add depth to your gaming experience. These tools help improve reaction time and personalize your setup. Overall, the Alienware AW2524HF delivers unmatched refresh speed, quick response, and stunning visuals. It’s perfect for competitive gamers who want every possible advantage. Specifications: Display : 24.5″ IPS Resolution : FHD 1920 x 1080 Refresh Rate : 500Hz Response Time : 0.5ms
Are you seeking a versatile solution for your presentation and collaboration needs? Look no further than the BenQ RE03A 75″ Board Essential. This cutting-edge interactive whiteboard redefines productivity and engagement in meeting rooms and classrooms alike. With its expansive 75-inch display, the BenQ RE03A offers ample space for showcasing your ideas and content. Whether you’re delivering a presentation, brainstorming with colleagues, or teaching a class, this interactive board provides a captivating canvas for your creativity. Transitioning to functionality, the BenQ RE03A boasts intuitive touch controls that make navigation and interaction effortless. Its responsive touch technology ensures smooth and precise input, allowing you to annotate, draw, and manipulate content with ease. Furthermore, the board’s seamless connectivity options enable seamless integration with your existing devices and software. Whether you’re using a laptop, tablet, or smartphone, the BenQ RE03A ensures compatibility and flexibility for all your presentation needs. In addition, collaboration features such as screen sharing and real-time annotation foster teamwork and idea exchange among participants. Break down communication barriers and enhance productivity with the BenQ RE03A’s collaborative tools. Moreover, the board’s durable construction and anti-glare surface ensure reliability and visibility even in brightly lit environments. Say goodbye to distractions and glare, and hello to clear, crisp visuals every time. In conclusion, the BenQ RE03A 75″ Board Essential is a game-changer for presentations and collaboration. With its large display, intuitive controls, and collaborative features, it empowers users to deliver impactful presentations and foster teamwork like never before. Upgrade your meeting room or classroom with the BenQ RE03A and unlock new possibilities for productivity and engagement. Specifications: Screen Size : 75″ Panel Type : IPS Resolution : UHD 3840×2160 Response Time : 8ms
The AOC Q27G3ZN 27″ 2K 260Hz Gaming Monitor delivers sharp visuals and ultra-smooth performance for gaming and media. Its 2K resolution shows crisp detail in games, videos, and creative work. The 27-inch panel gives you wide viewing space. This helps improve focus and immersion during gameplay. Moreover, the AOC Q27G3ZN 27″ 2K 260Hz Gaming Monitor features an ultra-fast 260 Hz refresh rate. Motion looks fluid and clear during fast action. This reduces blur and improves responsiveness. Every movement feels smooth and precise. In addition, the monitor offers a quick response time for accurate control. This helps reduce ghosting and keeps motion crisp. Gameplay feels responsive in competitive matches. This improves performance when you need speed. Furthermore, the AOC Q27G3ZN 27″ 2K 260Hz Gaming Monitor uses a high-quality panel with rich, vibrant colors. Images stay vivid and consistent from wide angles. This makes movies and games look more engaging. Visual quality stays impressive. Also, the monitor supports adaptive sync technology for tear-free gameplay. This keeps frames smooth when GPU frame rates fluctuate. Tearing and stutter decrease significantly. This improves the overall gaming experience. In addition, the AOC Q27G3ZN 27″ 2K 260Hz Gaming Monitor includes HDMI and DisplayPort connections for flexible setup. You can connect PC, consoles, and media devices easily. Setup stays simple and quick. Connectivity helps everyday use. Moreover, the design features slim bezels for a clean, modern look. The monitor fits well in gaming setups and multi-screen layouts. This saves desk space and improves style. Furthermore, the AOC Q27G3ZN 27″ 2K 260Hz Gaming Monitor offers adjustable stand settings for tilt, height, and comfort. You can set your view for long sessions. Comfort matters in extended gaming. Overall, the AOC Q27G3ZN 27″ 2K 260Hz Gaming Monitor delivers outstanding clarity, fast refresh, and smooth gameplay. It enhances competitive play and entertainment alike. This monitor is perfect for gamers and users who want speed, vivid visuals, and precise performance. Check out other option here! Specifications: Display : 27″ Fast IPS Resolution : 2560 x 1440 (QHD) Refresh Rate : 260Hz Response Rate : 0.5ms
Genuine-spec UK layout (QWERTY) black keyboard replacement for MacBook Air 13.6″ and 15″ models (2023–2025, M2/M3/M4 chips)—featuring Apple’s Magic Keyboard design with scissor-switch mechanism, backlighting, and precise OEM fit. Compatible With: 13.6″ MacBook Air: A2681 (M2, 2022–2023), A3113 (M3, 2023–2024), A3240 (M4, 2024–2025) 15″ MacBook Air: A2941 (M2, 2023), A3114 (M3, 2023–2024), A3241 (M4, 2024–2025) 13.6″ MacBook Air: A2681 (M2, 2022–2023), A3113 (M3, 2023–2024), A3240 (M4, 2024–2025) 15″ MacBook Air: A2941 (M2, 2023), A3114 (M3, 2023–2024), A3241 (M4, 2024–2025) Keyboard Layout: UK English (QWERTY) with £ symbol, taller Enter key, and standard UK key labeling—matches Apple’s original regional configuration. Design: Apple’s Magic Keyboard with scissor-switch mechanism—offering quiet, responsive typing with 1mm travel and improved reliability. Features: Backlit keys, ambient light sensor support, and original-style flex cable connector for seamless integration with the logic board. Color: Matte black keycaps matching the Space Gray and Midnight MacBook Air finishes (also compatible with Silver/Starlight—keycaps are model-agnostic). Precision Engineering: Manufactured to exact OEM specifications for fit, alignment, and tactile performance—ensures flush mounting within the top case. Installation Note: Keyboard is glued into the top case and requires full disassembly and careful re-adhesion. Recommended for professional technicians only due to complexity and risk of damage.
Are you ready to take your gaming to the next level? Look no further than the Asus VG279Q3A 27″ 180Hz Gaming Monitor. With its advanced features and cutting-edge technology, this monitor is designed to deliver an immersive gaming experience like no other. Firstly, let’s talk about the impressive display. With a 27-inch Full HD panel, you’ll enjoy crisp, clear visuals with vibrant colors and sharp details. Whether you’re exploring vast open worlds or engaging in intense battles, every moment will come to life on this stunning screen. Moreover, the 180Hz refresh rate ensures smooth and fluid gameplay, allowing you to react quickly to every movement with precision and accuracy. Say goodbye to motion blur and screen tearing, and hello to seamless gaming sessions that keep you on the edge of your seat. In addition, the Asus VG279Q3A features Adaptive-Sync technology, which eliminates stuttering and tearing for a smoother gaming experience. Whether you’re playing fast-paced shooters or immersive RPGs, you’ll enjoy tear-free gameplay without any distractions. In conclusion, if you’re looking for a gaming monitor that delivers exceptional performance and immersion, the Asus VG279Q3A 27″ 180Hz Gaming Monitor is the perfect choice. Immerse yourself in stunning visuals, fluid gameplay, and unparalleled gaming excellence. Specifications: Display : 27″ IPS Resolution : 1920×1080 Refresh Rate : 180Hz Response Rate : 1ms
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
BATTERY DELL 93FTF Laptop Battery Compatible with Dell Precision15 3520 3530 Dell Latitude12 5280 E5280 Latitude E5280 E5480 E5580 E5490 E5590 E5480 E5290 E5591E5491 Series D4CMT 4YFVG 83XPC 083XPC 11.4V 51Wh About this item Battery Type:3cell Li Polymer Best Quality Voltage &Capacity :11.4V 51Wh 4254MAH Safeguard features against incorrect voltage, short circuit, internal overheating 100% Brand new ,Grade A cells battery; Quality assurance;every battery has passed factory testing; 500+ recharge cycles over
Apple 60W MagSafe Power Adapter (for MacBook and 13-inch MacBook Pro) The 60 Watt MagSafe Power Adapter features a magnetic DC connector that ensures your power cable will disconnect if it experiences undue strain and 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 will light up; an amber light lets you know that your portable is charging, while a green light tells you that you have a full charge. An AC lead is provided with the adapter for maximum lead length, while the AC wall adapter (also provided) gives users an even easier and more compact way to travel. Designed to be the perfect travelling companion, the adapter has a clever design that allows the DC cable to be wound neatly around itself for easy cable storage. This power adapter recharges the lithium polymer battery while the system is off, on, or in sleep mode. It also powers the system if you choose to operate without a battery. Compatible with MacBook and 13-inch MacBook Pro. 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.
