Welcome to our store! 1. Broad Compatibility: This computer memory tester is fully compatible with all DDR4 motherboards from Intel and AMD. 2. Wide Application: This LED-equipped memory tester is used to troubleshoot motherboard issues such as no boot, no display, and memory read failures. 3. Forward and Reverse Support: The motherboard tester supports both forward and reverse slot interfaces, catering to your diverse needs. 4. LED Indicator: The LED lights on this desktop motherboard tester clearly indicate open circuits and short circuits in the data line, address line, and other signals. 5. Note: Due to differences in motherboard design and chipsets, some signal displays may vary. Use the same motherboard to verify the fault. Item Type: Computer Memory Tester Material: PCB Battery Type: CR2032 Button Battery (battery not included) Applicable: Motherboards supporting all DDR4 interfaces for Intel and AMD Package Includes: 1 x Computer Memory Tester 1 x User Manual Your 100% satisfaction is our top priority. We are committed to providing you with the best service. If you encounter any problems after receiving the product, such as damage, incorrect quantity, etc., please contact us immediately, and we will provide you with the best solution!