Crucial 240-pin DIMMs are 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.

Specification:

Internal memory     4096 MB
Internal memory type     DDR3
Form factor     Memory Module
Bus clock rate     1600 MHz
ECC     N
CAS latency     9
Memory voltage     1.35 V
Number of pins     240