Welcome to the store! 1. PCI ISA Interface: This PC diagnostic card adopts standard PCI and ISA interfaces, providing easy access to desktop PCs. 2. 4-Digit Display: This PC motherboard diagnostic card features a 4-digit display; the first two digits indicate the current error code, and the last two digits indicate the previous error code. 3. Strong Compatibility: This PC diagnostic 4-digit card is compatible with various motherboards featuring PCI and ISA bus slots. It's suitable for all computers with PCI or ISA interfaces. 4. Dual POST Code Display: This motherboard diagnostic card offers a remote self-check display function and a dual POST code display, making it easy to view POST codes. 5. High Reliability: The POST code display consists of a dual dot-matrix hexadecimal readout that shows Power On Self Test (POST) status codes. Item Type: PC Diagnostic Card Material: PVC Purpose: Computer Motherboard Repair Tool Specifications: Made with all SMD components, safe to handle, LCD character display. Applicable People: Professional motherboard repair technicians who purchase old motherboards. It can diagnose over 200 common motherboard faults and provide corresponding solutions according to the manual. 1 x PC Diagnostic Card 1 x Cable 1 x User Manual Your 100% satisfaction is our top priority. We will provide you with the best service. If you find any issues after receiving the product, such as damage or incorrect quantity, please contact us immediately, and we will provide you with the best solution!