Welcome to the store! 1. Excellent chips and memory particles; whether gaming or working, it provides fast and smooth operation. 2. Fast heat dissipation; the circuit module circuit board is resistant to high temperature, corrosion, and abrasion, and is easy to carry. 3. Increases efficiency in your work and life, boosts memory capacity, and improves computer operating speed. 4. Fully compatible with Intel/AMD laptops, with 4G/8G capacity for your choice. 5. Small size, easy to carry and store, convenient to use, and with good performance. Item Type: WALRAM Memory Module Model: DDR3L Material: PCB Memory Frequency: 1600mhz Bandwidth: PC4-21300 Voltage: 1.35V Pin Number: 204PIN Compatible: Fully compatible (for Intel/AMD) Applicable Computer: Applicable laptop If the memory shows: Blue screen, crash, restart, and the alarm keeps beeping, please try the following methods one by one. If it fails, it is determined to be incompatible. Try the following methods: 1. The memory is not correctly inserted, or the connecting finger is oxidized. Wipe the memory's connecting finger with an eraser and then insert it again, or replace the slot; 2. The memory slot is dusty or oxidized. Clean it with a brush and washing water (if there is no washing water, just brush it) 3. The memory is incompatible, try changing the memory. 4. The CMOS is not discharged to restore factory settings, may be normal (remove the motherboard battery and then put it back). 5. The motherboard is incompatible with the CPU, try changing the CPU. 1 x Memory Module Your satisfaction is our top priority. We will provide you with the best service. If you find any problems after receiving the product, such as damage, incorrect quantity, etc., please contact us immediately and we will give you the best solution!