Kingston Technology 8GB (1x8 GB) 1333MHz DDR3 PC3-12800 240-Pin ECC DIMM Memory for Select Lenovo Servers & Workstations KTL-TS313E/8G 8GB Module of 1333MHZ DDR3 ECC Memory for Lenovo 0A89461 (Lenovo) Specifically designed and tested for compatibility 240-pin unbuffered DIMM Backed by a lifetime warranty and free technical support From the industry leader in PC memory