From a service and support standpoint
Memory Buffered memory type Registered (buffered) Internal memory 16 GB Memory form factor 240-pin DIMM Memory ranking 2 ECC Yes Memory clock speed 1866 MHz Internal memory type DDR3 Features Buffered memory type Registered (buffered) Internal memory 16 GB Memory form factor 240-pin DIMM Memory ranking 2 ECC Yes Memory clock speed 1866 MHz Internal memory type DDR3
Memory Buffered memory type Unregistered (unbuffered) Internal memory 8 GB Memory form factor 204-pin SO-DIMM ECC No Memory clock speed 1600 MHz Internal memory type DDR3L Features Buffered memory type Unregistered (unbuffered) Internal memory 8 GB Memory form factor 204-pin SO-DIMM ECC No Memory clock speed 1600 MHz Internal memory type DDR3L
Memory Buffered memory type Unregistered (unbuffered) Internal memory 16 GB Memory form factor 260-pin SO-DIMM ECC No Memory clock speed 2133 MHz Internal memory type DDR4 Features Buffered memory type Unregistered (unbuffered) Internal memory 16 GB Memory form factor 260-pin SO-DIMM ECC No Memory clock speed 2133 MHz Internal memory type DDR4
Memory Internal memory 32 GB Memory form factor 240-pin DIMM Memory ranking 4 ECC Yes Memory clock speed 1333 MHz Internal memory type DDR3L Features Internal memory 32 GB Memory form factor 240-pin DIMM Memory ranking 4 ECC Yes Memory clock speed 1333 MHz Internal memory type DDR3L
Hypertec AM328A-HY memory module 16 GB 2 x 8 GB DDR3 1333 MHz ECC DDR3 From a service and supportMemory Buffered memory type Registered (buffered) Memory layout (modules x size) 2 x 8 GB Internal memory 16 GB Memory form factor 240 pin DIMM ECC Yes Memory clock speed 1333 MHz Internal memory type DDR3 Features Buffered memory type Registered (buffered) Memory layout (modules x size) 2 x 8 GB Internal memory 16 GB Memory form factor 240 pin DIMM ECC Yes Memory clock speed 1333 MHz Internal memory type DDR3