HP 606424-001 COMP 4GB DDR3-1333MHZ ECC 1.35V SR RDIMMAddOn 4GB DDR3 SDRAM Memory Module 4 GB (1 x 4GB) DDR3 1333 PC3 10664 DDR3 SDRAM 1333 MHz Single rank Memory CL9 1. 35 V ECC Registered 240 pin DIMM Lifetime Warranty VPN: 606424 001 AM SKU: RSC916269 UPC: 821455579473 4 GB memory allows you to have more programs open at a time Up to 1333 MHz memory speed with Registered signal for remarkable multitasking capability DDR3 1333 PC3 10664 interface multiplexes 2 bit data from memory cell and I O buses to