Synology DDR4 Non-ECC SO-DIMM Memory Module - D4NESO-2400-4G

Synology DDR3 Memory Module - RAMEC1600DDR3-2GBX2/RAMEC1600DDR3-8GBX2

Synology DDR3 Memory Module - D3NS1866L-4G/RAM1600DDR3-4G/RAM1600DDR3L-4GBx2/RAM1600DDR3L-8GBx2