suitable for example, as shown in the figure is the number 4,194,304, then put Xxx / 1024/1024, 4194304/1024/1024 =4. " it means the computer can support up to 4GB Memory"! I do not know if this RAM fit suitable for my computer OK, please download a program on the website: so you can check your computer and confirm your CPU specification. when a specification of the computer is not the same with our insuitable formation of our RAM memory, please do not buy this article because it will not work properly with your computer. Caution: The imsuitable formation of our images is a computer, that we choose to test, is only suitable for reference. suitable for more insuitable formation about your computer, please see the topic of "CPU" "SPD" "Memory". Sequence:PC2 5300 = DDR2 667MHZ 5 size: 13.3*3cm 100% new and high quality. Color: green Material: PCB Backed by superior design and rigorous testing, this product is engineered suitable for long life and continuing value. Capacity: 2GB Pins: 240-Pin Voltage:1.8V suitable form Factor: DIMM Buffering/ECC: Non-ECC, unbuffered Compatible with most major of desktop with Intel AMD CPU. It is the best choice suitable for your Intel/AMD cpu motherboard. "How to check the maximum storage capacity of my computer support?" 1. Press the taste "Windows" and "R", then the "Run" appears. 2. Enter ". Then a dialog box appears. 3. Continue typing with "wmic memphysical maxcapacity", then press "Enter" 4. You can then get the number, the unit KB. Pins of Memory RAMS DDR suitable for Desktop=184 pins DDR suitable for Laptop=200 pins DDR2 suitable for Desktop=240 pins DDR2 suitable for Laptop=200 pins DDR3 suitable for Desktop=240 pins DDR3 suitable for Laptop=204 pins Package Contents:4 * Memory RAM Only the above package content, other products are not included. Note: Light 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.