Item Type: Desktop Computer Memory Model: DDR3 Material: PCB Memory Capacity: 4GB Memory Frequency: 1600Mhz Bandwidth: PC3-12800 Voltage: 1.5V Pin Number: 240PIN Compatible: For AMD Dedicated Memory Applicable Computer: Desktop Note: The memory is divided into SD, DDR, DDR2, DDR3, DDR4 models. Please check the following list to know what memory has been installed in your computer and what memory you need to buy. If you don't know which memory is suitable for your computer, please use the software test to see what memory your favorite computer needs. (Enter in the Baidu search bar: "CPU-Z download" to search for a CPU-Z software to download and unzip), after running the software, look at the "Max Bandwidth" column of the "SPD" option, you will see "PCxx00", as follows: PC-2100 is DDR 266 memory PC-2700 is DDR 333 memory PC-3200 is DDR 400 memory PC2-4200 is DDR2 533 memory PC2-4300 is DDR2 533 memory PC2-5300 is DDR2 667 memory PC2-6400 is DDR2 800 memory PC3-8500 is DDR3 1066 memory PC3-10700 is DDR3 1333 memory PC3-12800 is DDR3 1600 memory PC4-17000 is DDR4 2133 memory PC4-19200 is DDR4 2400 memory PC4-2666V is DDR4 2666 memory Memory DDR, DDR2, DDR3, DDR4 are not common to each other, and the sockets are also different, let alone insert it forcibly, so as not to damage the memory and motherboard, remember! If the memory appears: blue screen, crash, restart, and the alarm keeps beeping, please operate according to the following methods one by one, if not, it is determined that it is not compatible. Try the following methods: 1 The memory is not inserted well, or the gold finger is oxidized. Use an eraser to remove the memory finger and then reinsert it, or change the slot; 2 The memory slot is dusty or oxidized. Use a brush and wash water to clean it (if you don’t have wash water, just brush it down) 3 The memory is not compatible, try another memory. 4 CMOS is not discharged to restore the factory settings, it may be normal (remove the motherboard battery, and then put it back). 5 The motherboard is not compatible with the CPU, try changing the CPU 1、Increased memory capacity, increased computer operating speed, and brought higher efficiency to your work and life. 2、High?quality chips and memory particles, powerful and stable performance. 3、The memory capacity is 4GB,frequency is 1600Mhz,the bandwidth is PC3?12800, voltage is 1.5V and the pin number is 240PIN. 4、Suitable for desktop computers, with strong compatibility and high stability. 5、The product can provide you with quick response time and smooth operation efficiency. 1 x Desktop Computer Memory