Specification: Item Type: DDR3 Memory Tester Material: PCB Battery Type: CR2032 Button Battery (delivered Without Battery) Applicable: Desktop Computer DDR3 Memory Stick Package List: 1 x DDR3 Memory Tester [110 LED Indicators, Comprehensive Data Line Testing] - 110 LED indicators are used to test all data lines of the memory. Normal brightness indicates normal functioning. Bright or no light indicates a hardware fault in the data line loop. [For Desktop Computer DDR3 Memory] - This memory test card is suitable for desktop computer DDR3 memory, allowing quick detection and troubleshooting of memory issues, improving computer stability and performance. [Easy to Use] - Insert the CR2032 battery into the test card's battery holder, insert the stick for testing. Simple and convenient operation. [Addressing Computer Memory Failures] - Computer memory failures are primarily caused by poor contact of gold pins, wear and tear of gold pins, broken PCBs, exclusion of data line damage, open and short circuits in video memory, and poor memory performance. [Durable Material for Long-Lasting Use] - Made with PCB material, providing durability and reliability for prolonged usage. [110 LED Indicators, Comprehensive Data Line Testing] - 110 LED indicators are used to test all data lines of the memory. Normal brightness indicates normal functioning. Bright or no light indicates a hardware fault in the data line loop. [For Desktop Computer DDR3 Memory] - This memory test card is suitable for desktop computer DDR3 memory, allowing quick detection and troubleshooting of memory issues, improving computer stability and performance. [Easy to Use] - Insert the CR2032 battery into the test card's battery holder, insert the stick for testing. Simple and convenient operation. [Addressing Computer Memory Failures] - Computer memory failures are primarily caused by poor contact of gold pins, wear and tear of gold pins, broken PCBs, exclusion of data line damage, open and short circuits in video memory, and poor memory performance. [Durable Material for Long-Lasting Use] - Made with PCB material, providing durability and reliability for prolonged usage.