Crucial CT51264BF160BJ 4GB DDR3 PC3-12800 Unbuffered NON-ECC

Crucial 4GB DDR3 PC3-12800 Unbuffered NON-ECC 1.35V
204-pin SODIMM

DDR3 204-pin SODIMM: Approximately 2.66 in. by 1.18 in. (66 mm by 30 mm)
In short, 204-pin small outline dual inline memory modules (SODIMMs) are the form factor used to provide DDR3 memory modules for notebook computers and other small form factor computing platforms. 204-pin SODIMMs are currently available in PC3-8500 (DDR3 1066MHz) and PC3-10600 (DDR3 1333MHz) speeds.

To use DDR3 memory, your system must have both a 204-pin SODIMM slot and a chipset that supports DDR3 memory. A DDR3 SODIMM will not fit into DDR2 or DDR memory sockets. (Information about which memory technology your system uses is included in the Crucial Memory Advisor tool.)

SODIMMs are smaller and thinner than regular DIMMs, and the 204-pin SODIMM PCBs are always ~2.6 inches long and are usually around 1.18 inches high (though the heights can vary slightly). They consist of a number of memory components (usually black) that are attached to a printed circuit board (usually green). The number of memory components on a 204-pin SODIMMs printed circuit board (PCB) can vary, but the PCB will always have 102 pins on the front and the back both, for a total of 204 pins. The gold pins on the bottom of the SODIMM provide the connection between the memory module and the memory socket.

Specification
ECC: NON-ECC
Form Factor: SODIMM
Module Size: 4GB
Kit Qty: 1
Speed: 1600 MT/S
Tracer: False
Voltage: 1.35V
DIMM Type: Unbuffered
Bullet Features: Increases system performance
Warranty: Limited Lifetime
Specs: DDR3 PC3-12800 CL=11 Unbuffered NON-ECC DDR3-1600 1.35V