Compatible Hynix partnumbers Hynix HMA81GU7AFR8N-UHDescription Hynix 8GB 1Rx8 PC4-2400T ECC UDIMM DDR4-19200 ECC Brand: HynixForm Factor: DIMMClass: DDR4Capacity: 8GBECC Type: ECC UnbufferedSpeed: PC4-19200Frequency: 2400MHz (MT/s)