SERVER MEMORY MODULE 4GB DDR3-1333MHZ ECC 1.35V SR RDIMMAddOn 4 GB (2 x 2GB) DDR3 SDRAM Memory Kit For Server 4 GB (2 x 2GB) DDR3 1333 PC3 10600 DDR3 SDRAM 1333 MHz Single rank Memory CL9 1. 35 V ECC Registered 240 pin RDIMM Lifetime Warranty VPN: AM1333D3SRLPR 4GKIT SKU: RSC575292 UPC: 821455036617 RDIMM 4 GB memory allows you to have more programs open at a time 1333 MHz speed with Registered signal and CL9 latency to execute routine softwares at a steady pace DDR3 1333 PC3 10600 interface multiplexes 2