DVM21E1T8/4G is an Unbuffered 512Mx72 memory module, which conforms to JEDEC's DDR4-2133, PC4-2133 standard. The assembly is Single-Rank, comprised of nine 512Mbx8 DDR4- 2133 SDRAMs. One EEPROM is used for Serial Presence Detect and a combination register/PLL, with Address and Command Parity, is also used.Both output driver strength and input termination impedance are programmable to maintain signal integrity on the I/O signals in a Fly-by topology. A thermal sensor accurately monitors the DIMM module and can prevent exceeding the maximum operating temperature of 95C.