Wintec Server MHzCL9 32GB(4x8GB) RegECC Kit 2Rx4 with HS 32 Quad Channel Kit DDR3 1333 (PC3 10600) 240-Pin SDRAM 3RSH13339R5H-32GQ 240-pin Registered ECC DDR3 DIMM All contacts are gold plated Terminated command, address, and control bus Bi-directional differential data strobe Adjustable data-output drive strength ROHS compliant