Specification: Item Type: Desktop Computer Memory Bar Model: DDR3 Material: Printed circuit board Memory Capacity: 2GB Memory Frequency: 1333Mhz Bandwidth: PC3-10600 Voltage: 1.5V Pin Number: 240pin Compatibility: Totally compatible(for /) Applicable Computer: Desktop Note: 1. The memory is divided into memory card, 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. The memory DDR, DDR2, DDR3 and DDR4 are not common to each other, and the sockets are different, and you can't force to insert it in, so as not to damage the memory and the motherboard, remember! 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 2. If the memory appears: blue screen, crash, restart, alarm keeps beeping, please operate one by one according to the following methods. If fails, it is determined not compatible. a. The memory is not inserted well, or the gold finger is oxidized. Use an eraser to erase the memory gold finger and then reinsert it, or change the slot. b. The memory slot is dusty or oxidized. Use a brush and water for cleaning panel to wash it (if you dont have the water, just brush it down). c. The memory is not compatible, try another memory. d. CMOS did not discharge, restore to the factory settings, maybe it is normal (remove the motherboard battery, and then put it back). Package List: 1 x Desktop Computer Memory Bar