
Synology 4GB DDR4 ECC Unbuffered SODIMM (DS923+, DS723+, RS822RP+, RS822+, DS2422+) D4ES02-4G
4 GB / 260-pin SO-DIMM

Synology Rail Kit RKS-02

Synology 16GB DDR4 ECC Unbuffered DIMM (SA3400D, SA3200D, UC3400, UC3200, RS4021xs+, RS3621xs+, RS3621RPxs, RS2821RP+, RS2421RP+, RS2421+, RS1619xs+, RS3618xs, RS2818RP+, RS2418RP+, RS2418+) D4EC-2666-16G
16 GB / 260-pin SO-DIMM

Synology 4GB DDR4 ECC Unbuffered SODIMM (RS1221RP+, RS1221+, DS1821+, DS1621+) D4ES01-4G
4 GB

Synology 8GB DDR4 ECC Unbuffered DIMM (SA3400D, SA3200D, UC3400, UC3200, RS3621xs+, RS3621RPxs, RS2821RP+, RS2421RP+, RS2421+, RS1619xs+, RS3618xs) D4EC-2666-8G
8 GB / 288-pin DIMM / 1.2 V

Synology 8GB DDR4 ECC Unbuffered DIMM (FS2500, RS2423RP+, RS2423+) D4EU01-8G
8 GB

Synology 8GB DDR4 ECC Unbuffered SODIMM (DS1823xs+, DS923+, DS723+, RS822RP+, RS822+, DS3622xs+, DS2422+, DS1522+) D4ES02-8G
8 GB / 260-pin SO-DIMM

Synology Dual M.2 SSD adapter M2D20
PCIe

Synology 16GB DDR4 ECC Unbuffered SODIMM (DS1823xs+, DS923+, DS723+, RS822RP+, RS822+, DS3622xs+, DS2422+, DS1522+) D4ES01-16G
16 GB / 260-pin SO-DIMM

Synology 16GB DDR4 ECC Unbuffered DIMM (FS2500, RS2423RP+, RS2423+) D4EU01-16G
16 GB

Synology Rail Kit RKM114 (RS822+, RS822RP+, RS1619xs+, RS422+)