AddOn 16GB PC3-10600 DDR3-1333MHz ECC Registered CL9 240-Pin DIMM 1.35V Low Voltage Very Low Profile (VLP) Dual Rank Memory Module. The AddOn 46C0599-AM memory module offers 16GB of DDR3-1333MHz ECC Registered RAM in a 240-pin DIMM form factor. Designed with CL9 latency and operating at 1.35V low voltage, it is suitable for systems requiring efficient performance and reliability. This Very Low Profile (VLP), dual-rank module is ideal for environments where space is limited, providing stable memory solutions for critical computing needs.