Mushkin 996988E Enhanced ECO2 8GB (2 x 4GB) 240-Pin DDR3 Capacity 8GB (2 x 4GB) Type 240-Pin DDR3 SDRAM Speed DDR3L 1600 (PC3L 12800) Cas Latency 9 Timing 9-9-9-24 Voltage 1.35V Buffered/Registered Unbuffered Color N/A Heat Spreader ECO-blk/slv