Crucial 2GB 240-Pin UDIMM DDR3 1066MT/S (PC3-8500) Desktop Memory Module, CL7, Unbuffered, ECC, 1.5V, 256Megx72

The Crucial 2GB 240-Pin UDIMM DDR3 1066MT/S (PC3-8500) Desktop Memory Module is used in DDR3 memory for desktop computers. DDR3 is the latest generation of memory with an improved architecture that allows it to transmit data more quickly. A dual inline memory module (DIMM) consists of a number of memory components (usually black) that are attached to a printed circuit board (usually green). The gold pins on the bottom of the DIMM provide a connection between the module and a socket on a larger printed circuit board. The pins on the front and back of a DIMM are not connected to each other.

To use DDR3 memory, your system motherboard must have 240-pin DIMM slots and a DDR3-enabled chipset. The number of black components on a 240-pin DIMM can vary, but it always has 120 pins on the front and 120 pins on the back, for a total of 240.