Patriot PSD38G13332 Signature 8GB CL9 PC3-10600 1333MHz DIMM 8 DDR3 1333 Computer Internal Memory PC3-10600 (1333MHz) Data Rate 240-Pin Dual in-line memory module Non-ECC Unbuffered 2 Rank Double-sided module 7.8US Refresh Interval (8192 CYCLES/64MS) 1.5V Power Requirement Auto and self refresh capability PCB height: 1181(mil)