Genuine-spec touchpad flex cable for MacBook Pro 13″ (Model A2251, 2020, Intel)—essential for restoring full Force Touch functionality, haptic feedback, and precise multi-touch gesture control during trackpad repair or replacement. Compatible With: MacBook Pro 13-inch (2020, Two Thunderbolt Ports, Model A2251, Model Identifier MacBookPro16,1) with Intel Core i5/i7 processors. 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: Precise touch coordinates Force Touch pressure data Haptic feedback signals to the Taptic Engine Enables full macOS gesture support including Force Click, three-finger lookup, swipe navigation, and inertial scrolling. Precise touch coordinates Force Touch pressure data Haptic feedback signals to the Taptic Engine Enables full macOS gesture support including Force Click, three-finger lookup, swipe navigation, and inertial scrolling. OEM-Quality Build: Matches Apple’s original specifications in: Cable length and routing Connector pitch and ZIF latch design EMI shielding and flex durability Cable length and routing Connector pitch and ZIF latch design EMI shielding and flex durability Common Use Cases: Replacing a torn, creased, or liquid-damaged original flex 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 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 partial disassembly (including battery disconnect). Cable routes under the right speaker and logic board—must be seated in original retention channels. Connects via ZIF (Zero Insertion Force) socket—align carefully and latch gently. Recommended for experienced or certified technicians only. Requires full bottom case removal and partial disassembly (including battery disconnect). Cable routes under the right speaker and logic board—must be seated in original retention channels. Connects via ZIF (Zero Insertion Force) socket—align carefully and latch gently. Recommended for experienced or certified technicians only.
The Philips 242V8 24″ 75Hz Monitor is a great choice for home and office use. It delivers clear visuals and smooth performance. With its Full HD resolution, you can enjoy sharp and detailed images. This 24-inch monitor features a 75Hz refresh rate for fluid motion. It reduces screen tearing and stuttering, making it ideal for everyday tasks and casual gaming. The fast response time ensures smooth transitions between frames. The Philips 242V8 24″ 75Hz Monitor uses SmartContrast technology for deep blacks and bright whites. It enhances image quality, making videos and images look better. The IPS panel provides wide viewing angles with consistent colors. With Flicker-Free technology, this 75Hz monitor reduces eye strain. It also includes LowBlue Mode to minimize harmful blue light. This makes it comfortable for long hours of use. Connectivity is simple with HDMI and VGA ports. You can easily connect it to your PC, laptop, or gaming console. The setup is quick and hassle-free. The Philips 242V8 24″ 75Hz Monitor has a slim and modern design. It fits well in any workspace, whether at home or in the office. The adjustable tilt stand provides a comfortable viewing experience. This Full HD monitor is energy-efficient, helping you save on power consumption. It meets eco-friendly standards while delivering high performance. In conclusion, the Philips 242V8 24″ 75Hz Monitor is a reliable and affordable display. It offers smooth visuals, eye comfort, and a sleek design, making it a perfect choice for work and entertainment. Specifications: Display : 24″ IPS Resolution : 1920×1080 Refresh Rate : 75Hz Response Rate : 4ms Speaker : 2W x2
The MSI PRO MP275Q 27″ 100Hz Business Monitor is built for productivity, comfort, and performance in both work and study environments. With a 27-inch QHD display, it delivers sharper images and more screen space compared to standard Full HD monitors. Moreover, the thin bezels create a modern look and allow for seamless multi-monitor setups. Because eye health is important, this monitor includes TÜV-certified low blue light and flicker-free technology. As a result, it reduces strain during long working hours. In addition, the ergonomic tilt adjustment ensures a comfortable viewing position throughout the day. The MSI PRO MP275Q 27″ 100Hz Business Monitor provides smooth visuals with its 100Hz refresh rate. Furthermore, AMD FreeSync support minimizes screen tearing, making video playback and light gaming more fluid. Therefore, it suits professionals who want a monitor that balances work efficiency with entertainment. Connectivity is flexible with HDMI and DisplayPort options, allowing easy connection to PCs, laptops, and other devices. Besides that, its built-in speakers deliver clear audio, reducing the need for external accessories. Not only does it excel in performance, but it is also VESA mount compatible, giving you more setup flexibility. In short, the MSI PRO MP275Q 27″ 100Hz Business Monitor combines visual clarity, smooth performance, and practical features, making it an excellent choice for offices and home setups alike. Specifications: Display : 27″ IPS Screen : FHD (2560×1440) Refresh Rate : 100Hz Response Rate : 1ms (MPRT) / 4ms (GtG)
The Meetion C235 is an economical wired keyboard and mouse combo featuring a full-size 104-key layout and reliable USB connectivity. Designed for business and office use, it offers comfortable typing, smooth mouse control, and plug-and-play compatibility with laptops and desktops. The Meetion C235 Keyboard & Mouse Combo is a practical and cost-effective solution for everyday office and business needs. With a full-size 104-key keyboard, it provides a familiar and comfortable typing experience, making it perfect for work, study, and daily computer use. The included wired mouse ensures precise and smooth control, while the USB plug-and-play setup makes installation quick and effortless on both laptops and desktop PCs. Full-Size 104-Key Keyboard for comfortable and efficient typing Wired USB Connection for stable, lag-free performance Plug & Play – no drivers required Comfortable Key Layout ideal for office and business work Smooth Wired Mouse Included for accurate control Durable Design suitable for long working hours Compatible with Laptop & Desktop PCs Economical Combo Set perfect for home or office setups Ideal for business offices, schools, home setups, and laptop users who need a reliable keyboard and mouse combo for productivity. Works with most computers and laptops supporting USB.
WIWU GENIUS COMBO SET BAG WITH MOUSE AND MOUSE PAD FOR 14" LAPTOP/ULTRABOOK - BLACK WIWU GENIUS COMBO SET BAG WITH MOUSE AND MOUSE PAD FOR 14″ LAPTOP/ULTRABOOK – BLACK Details: Material: plaid polyester + metal Mouse: single mode 2.4G Product weight: 14 inch / 465g Product size: 14 inches: 35*25*2cm Handbag+mouse+mouse pad Front layer multi-pocket design Better help classify items Waterproof fabric
Philips 27M2N3200FQ is a 27-inch Full HD Fast IPS gaming monitor. It delivers a 1920 × 1080 resolution with a 200Hz refresh rate and 1ms response time. Additionally, it uses a Fast IPS panel for wide viewing angles and consistent color performance. Moreover, it supports Adaptive Sync for smoother visuals with reduced tearing. It includes SmartImage Game mode to optimize display settings for different game types. Furthermore, it features Flicker-Free technology and LowBlue Mode for reduced eye strain during long use. It also includes HDMI and DisplayPort connectivity for display input options. The Philips 27M2N3200FQ monitor provides high refresh Fast IPS performance for smooth gaming and everyday use. Specifications: 27-inch Fast IPS panel with Full HD 1920 × 1080 resolution 200Hz refresh rate for smooth motion display 1ms response time for reduced blur Adaptive Sync support for smoother visuals Flicker-Free technology and LowBlue Mode
Genuine-spec touchpad flex cable for MacBook Air 13″ (Model A1932, 2018–2019)—essential for restoring full Force Touch functionality, haptic feedback, and precise multi-touch gesture control during trackpad repair or replacement. Compatible With: MacBook Air 13-inch (2018 & 2019, Model A1932, Model Identifier MacBookAir8,1) with Intel Core i5/i7 processors. 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, Force Touch pressure data, and haptic feedback signals—critical for macOS gestures like Force Click, three-finger lookup, pinch-to-zoom, and smooth cursor tracking. OEM-Quality Build: Matches Apple’s original in length, connector pitch, EMI shielding, and flexibility—ensures reliable signal integrity and long-term durability. Common Use Cases: Replacing a torn, creased, or liquid-damaged original flex cable Completing a trackpad replacement when the original cable is unusable 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 unusable Fixing intermittent trackpad behavior, loss of Force Touch, or complete unresponsiveness Installation Note: Requires full bottom case removal and careful routing beneath the battery. The cable connects via a ZIF (Zero Insertion Force) socket on the logic board—must be properly aligned and latched without force. Recommended for experienced or certified technicians. Important: This is flex cable only—not a complete trackpad assembly. Must be used with the original or compatible A1932 trackpad and Taptic Engine. Not compatible with MacBook Air M1 (A2337/A2338), M2 (A2681/A2941), or any MacBook Pro model. This is flex cable only—not a complete trackpad assembly. Must be used with the original or compatible A1932 trackpad and Taptic Engine. Not compatible with MacBook Air M1 (A2337/A2338), M2 (A2681/A2941), or any MacBook Pro model.
The ASUS VA279HG 27″ FHD Eye Care Monitor delivers clear Full HD visuals on a large 27-inch screen. It offers bright colors and a wide viewing area. This makes work, entertainment, and daily tasks look clean and comfortable. The larger display improves productivity and visual clarity. Moreover, the ASUS VA279HG 27″ FHD Eye Care Monitor features a 75Hz refresh rate. This creates smoother motion in games and videos. It reduces blur and keeps movement stable. You enjoy a more responsive and pleasant viewing experience. In addition, Adaptive Sync support minimizes screen tearing. It keeps visuals smooth during fast scenes. Gamers and casual users benefit from consistent performance. This adds comfort to longer sessions. Furthermore, the monitor includes ASUS Eye Care technology. It reduces blue light and eliminates screen flicker. This protects your eyes from strain and fatigue. You can work or watch content for longer with ease. Also the ASUS VA279HG 27″ FHD Eye Care Monitor uses a VA panel for strong contrast. It delivers deeper blacks and more vivid colors. Also, the design is simple and modern. The thin frame looks clean on any desk. The stand offers tilt adjustment for better comfort. This helps you find the ideal viewing angle easily. Finally connectivity is flexible and reliable. The monitor includes HDMI and VGA ports. This allows quick setup with many devices. It works well with laptops, desktops, and media players. Overall, the ASUS VA279HG 27″ FHD Eye Care Monitor combines smooth performance, eye protection, and a spacious display. It is ideal for home, office, and entertainment use. It delivers comfort, clarity, and strong everyday value. Specifications: Display : 27″ IPS Resolution : FHD Refresh Rate : 120Hz Response Time : 1ms Model : 90LM04J1-B02371
In the world of monitors, the ViewSonic VA2406-h 24″ stands out as a reliable solution, offering clear visuals and straightforward features for an enhanced viewing experience. Transitioning to its key features, the VA2406-h excels in providing crisp and clear visuals. This monitor is designed to deliver sharp images and vibrant colors, ensuring a visually engaging experience for work, entertainment, or everyday tasks. Moreover, this display impresses with its sleek and minimalistic design. The ViewSonic VA2406-h not only complements your workspace but also ensures easy setup, making it an ideal choice for users seeking simplicity. In addition to its functionality, the VA2406-h offers user-friendly controls and versatile 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 VA2406-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 VA2406-h 24″ redefines visual clarity and simplicity, combining clear visuals, sleek design, and user-friendly features. Elevate your viewing experience effortlessly with the VA2406-h – your clear and straightforward solution for enhanced display quality! Specifications: SuperClear 178°/178° Full HD 1080p Flicker Free Blue Light Filter ViewMode: Game/Movie/Web/Text/Mono Low Energy Consumption VGA: 1 3.5mm Audio Out: 1 HDMI 1.4: 1
Upgrade your entertainment setup with the ViewSonic VX2458-P-MHD monitor, designed to take your viewing experience to new heights. Featuring a 24” display, this monitor offers crystal-clear visuals that immerse you in every scene. With a blazing-fast 144Hz refresh rate, this monitor ensures smooth, fluid motion in all your favorite content. Say goodbye to motion blur and hello to a seamless viewing experience that keeps up with the action. Transitioning to responsiveness, the VX2458-P-MHD boasts an impressive 1ms response time, minimizing input lag for ultra-responsive gaming and multimedia performance. Enjoy instantaneous reactions to your commands, whether you’re gaming or watching movies. Furthermore, the monitor’s Full HD resolution delivers crisp, detailed images that bring your entertainment to life. From vibrant colors to sharp contrasts, every scene pops with stunning clarity and realism. Moreover, with AMD FreeSync technology, screen tearing and stuttering are virtually eliminated, ensuring silky-smooth gameplay and seamless video playback. Immerse yourself in your favorite games and movies without distractions. In addition, the monitor’s versatile connectivity options, including HDMI and DisplayPort, make it easy to connect to a variety of devices, from gaming consoles to PCs and laptops. In conclusion, the ViewSonic VX2458-P-MHD monitor is the ultimate choice for immersive entertainment experiences. With its high refresh rate, swift response time, and vibrant visuals, it’s the perfect companion for gaming, movies, and more. Upgrade your viewing experience today and enter a world of endless entertainment possibilities. Specifications: Display : 24″ TN Resolution : FHD (1920×1080) Refresh Rate : 144Hz Response Rate : 1ms GTG
Philips 271V8W is a 27-inch Full HD LCD monitor designed for everyday use. It delivers a 1920 × 1080 resolution with a 75Hz refresh rate and IPS panel for wide viewing angles and consistent color performance. Additionally, it includes Adaptive Sync technology for smoother visuals and reduced screen tearing. Moreover, it supports Flicker-Free technology and LowBlue Mode to help reduce eye strain during long use. It also features an anti-glare coating for more comfortable viewing in bright environments. SmartContrast adjusts brightness and contrast based on displayed content for improved image clarity. The Philips 271V8W monitor provides a simple and reliable 27-inch IPS display experience with smooth 75Hz performance for daily tasks. Specifications: 27-inch IPS panel with Full HD 1920 × 1080 resolution 75Hz refresh rate for smooth daily visuals Adaptive Sync for reduced screen tearing Flicker-Free technology for eye comfort LowBlue Mode and anti-glare coating for reduced eye strain
AOC Screen 23.8″ VA Panel Model name 24B2XHM Panel 23.8″ (VA) Pixel Pitch (mm) 0.2745 (H) × 0.2745 (V) Effective Viewing Area (mm) 527.04 (H) × 296.46 (V) Brightness (typical) 250 cd/m² Contrast Ratio 3000 : 1 (Typical) 20 Million : 1 (DCR) Response Time 6ms (GtG (BW)) Viewing Angle 178° (H) / 178° (V) (CR > 10) Color Gamut NTSC 80% (CIE1976) / sRGB 101% (CIE1931) Color Accuracy – Optimum Resolution 1920 × 1080 @ 75Hz – HDMI 1920 × 1080 @ 60Hz – VGA Display Colors 16.7 Million Signal Input VGA × 1, HDMI 1.4 × 1 HDCP Version – USB Hub no Power Supply 19V DC, 1.31A Power Consumption (typical) 21W Speakers no Line in & Earphone – Wall-Mount 100mm × 100mm Adjustable Stand Tilt: -5° ~ 20° Product without Stand (mm) 320.94 (H) × 539.47 (W) × 37.6 (D) Product with Stand (mm) 418.35 (H) × 539.47 (W) × 170.94 (D) Product without Stand (kg) 2.41 Product with Stand (kg) 2.73 Cabinet Color Black Regulatory Approvals CE / FCC Specifications: AOC Screen 23.8″ VA Model name 24B2XHM Panel 23.8″ (VA) Pixel Pitch (mm) 0.2745 (H) × 0.2745 (V) Effective Viewing Area (mm) 527.04 (H) × 296.46 (V) 1 Year Warranty Manufacturer Link
Replacement Audio Board with IPD Cable for MacBook Air M1 2020 (A2337). Compatible with part numbers 820-01929-A, 821-03452-A, 923-03672, 923-03663, and more. Ideal for fixing audio issues, headphone jack problems, or sound board failures. The Audio Board with IPD Cable for MacBook Air (M1, 2020) is a high-quality replacement spare part designed to restore proper sound functionality on MacBook Air A2337 models. If your MacBook is experiencing no sound output, headphone jack issues, distorted audio, or audio board failure, this replacement board provides a reliable solution. It includes the required IPD cable for proper installation and connection, making it ideal for professional repairs and technician use. Replacement Audio Board + IPD Cable for MacBook Air M1 Fixes audio issues such as no sound, headphone jack failure, or audio distortion Includes IPD cable for correct connection and repair High-quality build for stable and long-term performance Ideal for technicians, repair shops, and spare part replacement Compatible with multiple Apple part numbers for easy matching ✔ MacBook Air (M1, 2020) A2337 Compatible only with MacBook Air A2337 (M1, 2020). Please match your device model and part number before ordering to ensure correct fit.
Genuine Apple MacBook Pro 16″ (A2141) Retina display assembly—professionally removed from original units and tested for full functionality. Ideal for high-quality repairs with true OEM performance and clarity. Model Compatibility: Fits MacBook Pro 16-inch (2019 model, A2141) only. 100% Original Apple Display: Not a copy or aftermarket part—this is an authentic Apple Retina display assembly carefully pulled from used or refurbished MacBook Pro units. Stunning Retina Display: 16-inch LED-backlit screen with 3072 x 1920 resolution, P3 wide color, True Tone technology, and high brightness for crisp, lifelike visuals. Complete Assembly Included: Comes with front glass, LCD panel, integrated 720p FaceTime HD camera, ambient light sensor, and full bezel—ready for installation. Rigorously Inspected: Each unit is tested for dead pixels, backlight uniformity, color accuracy, and physical condition to ensure reliable performance. “Pulled” Condition: Removed from a genuine MacBook Pro—fully functional with OEM quality, but shows signs of prior use (no cracks or major blemishes). Perfect for Professional Repairs: Trusted by technicians and refurbishers who demand factory-level display quality and compatibility.
Genuine-spec US layout keyboard replacement for MacBook Pro 13″ (Model A1502, Mid 2014)—featuring durable scissor-switch keys, backlighting, and OEM-fit design for reliable performance and easy installation. Compatible With: MacBook Pro 13-inch (Mid 2014, Model A1502, Model Identifier MacBookPro11,1) with Retina display. Layout: Standard US English (QWERTY) with full-size keys, inverted-T arrow keys, and dedicated function row (F1–F12). Keyboard Type: Traditional scissor-switch mechanism—offers good key travel, tactile feedback, and proven long-term reliability (pre-Butterfly design). Integrated Features: Backlit keys for low-light environments, ambient light sensor compatibility, and original-style ribbon cable connector for direct logic board attachment. Build & Fit: Precision-molded to match Apple’s exact dimensions and mounting points—ensures flush integration into the top case with consistent key alignment. Installation Note: Keyboard is secured with screws and light adhesive—more serviceable than later glued models. Requires top case access and battery disconnection. Suitable for intermediate DIYers or professional technicians.
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
A modern pre-owned Dell Latitude 5420 with 14" display, 11th Gen Core i5, 8GB RAM, and 256GB SSD—delivering reliable performance, enterprise security, and all-day productivity in a compact business laptop.
The Samsung 65″ QLED Q6F 4K Smart TV QA65Q6FAAUXTW delivers vibrant picture quality and smart entertainment features in a sleek design. It uses advanced QLED technology to produce bright colors, sharp details, and impressive clarity, making movies, sports, and games more engaging on the 65-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 variety of content. Dark scenes retain important details, while bright scenes remain balanced and clear. This creates a more enjoyable viewing experience throughout the day. The 4K UHD resolution provides exceptional image detail and clarity. Therefore, content looks sharper and more refined than standard Full HD. In addition, Samsung processing technology enhances lower-resolution content, helping it appear closer to native 4K quality. HDR support improves contrast and expands the visible color range. This allows brighter highlights and deeper shadows, creating more realistic images. Fast-moving scenes also appear smoother and clearer, making sports events and action-packed content more enjoyable. The Smart TV platform provides access to popular streaming services, apps, and connected home features. It offers a responsive interface that makes navigation simple and convenient. In addition, the slim design and narrow bezels give the Samsung QLED 65 Q6F 4K Smart TV QA65Q6FAAUXTW a modern appearance that fits well in most living spaces. Overall, this Samsung QLED TV combines vivid colors, sharp 4K resolution, and smart functionality for a complete home entertainment experience. Specifications: QLED technology delivers vibrant colors and enhanced brightness 65-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
Gain the competitive advantage with the Bloody ES7, featuring a high-performance 6000 CPI PixArt Optical Engine. With ultra-fast 1ms click response and customizable 16.8 million color RGB lighting, this mouse is built for gamers who demand precision, speed, and comfort in every match. The A4Tech Bloody ES7 is a professional-grade esports tool designed to translate every hand movement into on-screen action with 1:1 tracking accuracy. Driven by the reliable PixArt Optical Engine, it eliminates “angle snapping” and artificial corrections, ensuring your aim remains raw and precise. Its ergonomic symmetrical shape supports various grip styles, while the anti-sweat matte finish ensures you stay in control even during the most intense gaming sessions. PixArt Optical Engine (6000 CPI): High-precision tracking with 5-level adjustable sensitivity (1000/1200/1600/2000/6000 CPI). Fine-tune your control via software to suit any game genre. Lightning-Fast 1ms Response: Equipped with ahead-of-the-curve technology, the ES7 reacts instantly to your clicks, providing the low-latency performance required for competitive play. Vibrant RGB Lighting: Immerse yourself in your gaming setup with 16.8 million customizable RGB colors and dynamic lighting effects. Customizable “M” Button: The dedicated M button can be programmed via software to execute complex macros or combined functions, putting more power at your fingertips. Extreme Durability: Built to last, the primary buttons are rated for over 10 million clicks, and the high-quality scroll wheel is tested for over 500,000 scrolls. Braided 1.8m Cable: The robust, tangle-free braided cable ensures a stable connection and long-term durability against wear and tear. Sensor: PixArt Optical Engine Resolution: 100 – 6,000 CPI Report Rate: 125 – 1,000 Hz (Adjustable) Key Response: 1 ms Acceleration: 15 g Tracking Speed: 45 ips Frame Speed: 6,000 fps Buttons: 7 Buttons Memory: 256K Onboard Memory Interface: USB Wired (1.8m Cable) System Requirements: Windows 7/8/8.1/10/11 or later Bloody ES7 Esports Gaming Mouse Quick Start Guide
