Lenovo TDSourcing - DDR3L - 16 GB - DIMM 240-pin low profile - 1066 MHz / PC3-8500 - CL7 - 1.35 V - registered - ECC - refurbished - for Lenovo Flex System x240 Compute Node/ System x35XX M3/ x36XX M3/ x3755 M3/ x3950 X5