18TB drives on the Synology compatibility list
Synology officially lists 89 different 18TB part numbers from 5 brands: Toshiba (36) · Seagate (25) · Western Digital (22) · WD (5) · Synology (1). Ranked below by how many models list each — the wider the support, the safer the pick for an unlisted or older machine.
89
Listed 18TB drives
5
Brands
194
Widest model support
Our pick at 18TB
The most universally listed 18TB NAS-line drive is the Seagate IronWolf Pro (ST18000NE000-2YY101) — on 194 Synology models' official lists. For surveillance builds, filter the table below by the Surveillance line instead.
All 18TB drives, ranked by support
| Drive | Brand | Series | Line | Listed on |
|---|---|---|---|---|
| ST18000NM000J | Seagate | EXOS x18 | Enterprise | 211 machines |
| ST18000NE000-2YY101 | Seagate | IronWolf Pro | NAS | 194 machines |
| ST18000NT001-3LU101 | Seagate | IronWolf Pro | Enterprise | 192 machines |
| WUH721818ALE6L4 | Western Digital | Ultrastar DC HC550 | Enterprise | 165 machines |
| WUH721818ALE6L0 | Western Digital | Ultrastar DC HC550 | Enterprise | 162 machines |
| WD181KRYZ | Western Digital | Gold | Enterprise | 160 machines |
| WD181VRYZ | Western Digital | Gold | Enterprise | 148 machines |
| MG09ACA18TE | Toshiba | MG09 | Enterprise | 145 machines |
| MG11ACA18TE | Toshiba | MG11 Series | Enterprise | 145 machines |
| WD181KFGX-68AFPN0 | Western Digital | Red Pro | NAS | 126 machines |
| ST18000NM003D | Seagate | EXOS x20 | Enterprise | 121 machines |
| MN09ACA18T | Toshiba | MN09 | NAS | 114 machines |
| HDEB00UGEA51 | Toshiba | MG | Enterprise | 107 machines |
| HDEB00VGEA51 | Toshiba | MG | Enterprise | 107 machines |
| MG10ACA18TA | Toshiba | MG10 | Enterprise | 107 machines |
| MG10ACA18TE | Toshiba | MG10 | Enterprise | 107 machines |
| 0B48718 (WUH722018CLE6L1) | Western Digital | Ultrastar DC HC555 | Enterprise | 100 machines |
| 0B48723 (WUH722018CLE6L4) | Western Digital | Ultrastar DC HC555 | Enterprise | 100 machines |
| WD181KRYZ | Western Digital | Gold Enterprise | Enterprise | 100 machines |
| HDWG51JAZSTA (HDWG51J*) | Toshiba | N300/N300 Pro | NAS | 99 machines |
| HDWG51JEZSTA (HDWG51J*) | Toshiba | N300/N300 Pro | NAS | 99 machines |
| HDWG51JUZSVA (HDWG51J*) | Toshiba | N300/N300 Pro | NAS | 99 machines |
| HDWG51JXZSTA (HDWG51J*) | Toshiba | N300/N300 Pro | NAS | 99 machines |
| HDWG51JYZSTA (HDWG51J*) | Toshiba | N300/N300 Pro | NAS | 99 machines |
| MG09ACA18TEY | Toshiba | MG09 | Enterprise | 98 machines |
| MG09ACA18TA | Toshiba | MG09 | Enterprise | 97 machines |
| WUH721818ALE6L1 | Western Digital | Ultrastar DC HC550 | Enterprise | 95 machines |
| HDEPZ10GEA51 | Toshiba | MG | Enterprise | 94 machines |
| HDEPZ20GEA51 | Toshiba | MG | Enterprise | 94 machines |
| WD181KFGX-68CKWN0 | Western Digital | Red Pro | NAS | 90 machines |
| ST18000NE000-3G6101 | Seagate | IronWolf Pro | NAS | 89 machines |
| WD181PURA-64CLBY0 | Western Digital | Surveillance Purple Pro | Surveillance | 89 machines |
| WD181PURP-74CLCY0 | Western Digital | Surveillance Purple Pro | Surveillance | 89 machines |
| WD181PURP-85CLCY0 | Western Digital | Surveillance Purple Pro | Surveillance | 89 machines |
| ST18000VN000-2YV101 | Seagate | IronWolf | NAS | 86 machines |
| HAT5310-18T | Synology | HAT5310 | Enterprise | 75 machines |
| MN11ACA18T(HDWG81J*ZSTB) | Toshiba | MN11 | NAS | 75 machines |
| WD181KFGX | Western Digital | WD RED Pro | Enterprise | 63 machines |
| ST18000NM001J | Seagate | EXOS x18 | Enterprise | 59 machines |
| ST18000NE000 | Seagate | IronWolf | NAS | 48 machines |
| ST18000VN000 | Seagate | IronWolf | NAS | 48 machines |
| ST18000VN000-3J3101 | Seagate | IronWolf | NAS | 34 machines |
| ST18000VE002-3BS101 | Seagate | Surveillance SKYHAWK AI | Surveillance | 33 machines |
| DC HC500 | Western Digital | Ultrastar | Enterprise | 32 machines |
| WD180PURZ | Western Digital | Surveillance Purple | Surveillance | 22 machines |
| WD181EJRP | Western Digital | Surveillance Purple | Surveillance | 22 machines |
| WD181PURP | Western Digital | Surveillance Purple | Surveillance | 22 machines |
| ST18000NE000 - 2YY101 | Seagate | IronWolf Pro | NAS | 18 machines |
| ST18000NT001 - 3LU101-500 | Seagate | IronWolf Pro | NAS | 18 machines |
| HDWG51J*ZSTA | Toshiba | N300 | NAS | 16 machines |
| HDWG51JUZSVA | Toshiba | N300 | NAS | 16 machines |
| HDWG81J*ZSTA | Toshiba | N300 | NAS | 14 machines |
| HDWG81J*ZSTB | Toshiba | N300 Pro | NAS | 14 machines |
| HDWG81JUZSVA | Toshiba | N300 | NAS | 14 machines |
| HDWG81JUZSVB | Toshiba | N300 Pro | NAS | 14 machines |
| MN11ACA18T | Toshiba | N300 Pro | NAS | 14 machines |
| MN11ACA18TS | Toshiba | N300 | NAS | 14 machines |
| ST18000NE000 - 3G6101-500 | Seagate | IronWolf Pro | NAS | 13 machines |
| ST18000VN000 - 2YV101-500 | Seagate | IronWolf | NAS | 12 machines |
| ST18000VN000 - 3J3101-500 | Seagate | IronWolf | NAS | 12 machines |
| MG11ACA18TE-V | Toshiba | S300 AI | Surveillance | 11 machines |
| ST18000NM004J | Seagate | EXOS x18 | Enterprise | 9 machines |
| WUH721818AL5204 | Western Digital | Ultrastar DC HC550 | Enterprise | 8 machines |
| WUH722018CLE6L4 | WD | Ultrastar DC HC555 | Enterprise | 8 machines |
| HDWG81JUZSVA (MN11ACA18TS) | Toshiba | N300 | Enterprise | 7 machines |
| ST18000VE002-3GA101 | Seagate | Surveillance SKYHAWK AI | Surveillance | 7 machines |
| WUH721818AL5200 | Western Digital | Ultrastar DC HC550 | Enterprise | 7 machines |
| MG09SCA18TE | Toshiba | MG09 | Enterprise | 6 machines |
| HDEPY10GEA51 | Toshiba | MG09 | Enterprise | 5 machines |
| MG10SCA18TA | Toshiba | MG10 | Enterprise | 5 machines |
| MG10SCA18TE | Toshiba | MG10 | Enterprise | 5 machines |
| HDEA00UGEA51 | Toshiba | MG | Enterprise | 4 machines |
| HDEA00VGEA51 | Toshiba | MG | Enterprise | 4 machines |
| ST18000NEA01 | Seagate | IronWolf Pro | NAS | 3 machines |
| ST18000NEZ01 | Seagate | IronWolf Pro | NAS | 3 machines |
| ST18000NM000D | Seagate | EXOS x20 | Enterprise | 3 machines |
| ST18000NTA01 | Seagate | IronWolf Pro | NAS | 3 machines |
| ST18000NTZ01 | Seagate | IronWolf Pro | NAS | 3 machines |
| WD180EJRX | Western Digital | Surveillance Purple | Surveillance | 3 machines |
| WD181KFGX - 68CKWN0 | WD | Red Pro | NAS | 3 machines |