Buy Kingston KF316C10BBK2/8 8GB DDR3 Memory Kit Total Memory: 8GB (2 x 4GB modules) Memory Type: DDR3 SDRAM Memory Speed: 1600 MHz Data Rate: DDR3-1600/PC3-12800 Latency: CL10 Voltage: 1.50 V Form Factor: 240-pin DIMM Unbuffered: Yes Warranty: Lifetime Warranty