HYPERTEC QNAP - DDR4 - module - 4 GB - DIMM 288-pin - 2666 MT/s / PC4-21300 - 1.2 V - unbuffered - ECC - for QNAP TS-1283, TS-1683, TS-2483, TS-883, TS-983 RAM-4GDR4ECP0-UD-2666
QNAP QNAP - T1 version - DDR4 - module - 4 GB - SO-DIMM 260-pin - 2666 MT/s / PC4-21300 - 1.2 V - unbuffered - non-ECC - for QNAP TS-873A RAM-4GDR4T1-SO-2666