1. DDR5 doubles the memory read speed to 6.4 Gbps, while also greatly increasing memory capacity. DDR5 bandwidth for DDR4 twice, module transfer rate can reach 4.8 Gbps , faster than DDR4 existing new module 3.2 Gbps 50%, transfer rate is expected to reach 6.4 GbpSo 2. DDR5 device internal operating voltage of 1.1V, more power-efficient than DDR4's 1.2V. DDR5 form factor to maintain the same number of 288 pins as DDR4, but the definition is different, not compatible with DDR4 slot. 3. DDR5 tester all support for , for AMD all DDR5 interface motherboard, with light-emitting diodes to indicate the data line, address line open and short circuit, used to repair not boot, not display, not read the memory and other motherboard failure, is a tool to repair the computer motherboard. 4. Instructions for use.(CR2032,3V) battery into the battery holder of the test card, and the tester into the DDR5 model on the motherboard, and then the motherboard installed CPU, press the key switch on the test card, you can judge the motherboard memory part of the open circuit, short-circuit fault. 5. If a LED is not lit, find the number of pins corresponding to the LED, to continue to find the memory slot and CPU block is open and shorted to ground, whether the memory slot is damaged, etc. If a LED is particularly bright, it is necessary to check whether this signal is shorted with the power supply The product will be upgraded constantly,the appearance and color may be changed,please don't mind.And take a consideration before place the order Cautions. 1: DDR5 tester in testing the motherboard,the motherboard must be plugged into the CPU,the test light will be on, because the memory part of the signal is connected to the CPU 2: After the tester battery is used for many times,the tester brightness becomes dark,then the battery voltage is too low, you need to replace the battery in time 3: This tester of various signals,due to the motherboard design and different chipsets of the motherboard vendors, some of the signals may be displayed differently, please repair personnel with the same motherboard control judgment 4: Desktop DDR5 currently on the market there are two interface types,when one side can not be inserted into the memory slot test,please switch to the other side for testing 5: Memory exists on the motherboard according to the amount of different,the signal name on the memory Pin pins will change,but all the pin number arrangement will not change,so DDR5 with light tester will change the name of the light to pin number, can facilitate customers to clearly know the signal abnormal pin 6: This tester only supports memory hooked up to the CPU.It does not support memory hooked up to Millbrook or Colour:Red Material:Plastic Package Contents: 1 * DDR5 module Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.