Patriot Signature DDR3 8 GB CL9 PC3-10600 (1333MHz) SODIMM 8 Not a kit (Single) 204-Pin SO-DIMM PSD38G13332S PC3-10600 (1333MHz) dual Data Rate 204-Pin Dual in-line memory module Non-ECC Unbuffered SODIMM 2 Rank Double-sided module 7.8US Refresh Interval (8192 CYCLES/64MS) 1.5V Power Requirement Auto and self refresh capability Only compatible with systems based on the 2nd Generation IntelCore CPUs (Intel 2000 Series)