NAS Drive Compatibility

Compatible hard drives for Synology DS1821+

198 drives are on Synology's official compatibility list for the DS1821+. Read from synology.com, refreshed daily by CI.

1-bay

198
Listed drives
123
NAS / Plus line
50
Enterprise line
24 TB
Largest listed drive

Capacity range on the official list

24TB (1)20TB (3)18TB (1)16TB (10)14TB (13)12TB (18)10TB (15) … 10TB & below (137)

Where to start on the DS1821+

For a home or small-office workload, the NAS/Plus lines below balance sustained writes and RAID-rebuild tolerance. Enterprise speed is only worth paying for in full-bay builds:

Full DS1821+ compatibility list

Grouped by part number; Max shows the largest capacity Synology lists. Filter by brand, line or capacity:

DriveBrandSeriesLineTypeMax listed
HAT5320-24T Synology HAT5320 Enterprise 3.5" SATA HDD 24 TB
HAT3320-20T Synology HAT3320 Plus 3.5" SATA HDD 20 TB
HAT5310-20T Synology HAT5310 Enterprise 3.5" SATA HDD 20 TB
HAT5320-20T Synology HAT5320 Enterprise 3.5" SATA HDD 20 TB
HAT5310-18T Synology HAT5310 Enterprise 3.5" SATA HDD 18 TB
HAT3310-16T Synology HAT3310 Plus 3.5" SATA HDD 16 TB
HAT5300-16T Synology HAT5300 Enterprise 3.5" SATA HDD 16 TB
HAT5310-16T Synology HAT5310 Enterprise 3.5" SATA HDD 16 TB
HDWG31G*ZSTA Toshiba N300 NAS 3.5" SATA HDD 16 TB
MN08ACA16T Toshiba MN08ACA*** NAS 3.5" SATA HDD 16 TB
ST16000NE000 - 2RW103 Seagate IronWolf Pro Enterprise NAS 3.5" SATA HDD 16 TB
ST16000NM001G - 2KK103 Seagate Exos X16 Enterprise 3.5" SATA HDD 16 TB
ST16000VE000 Seagate SkyHawkAI Surveillance 3.5" SATA HDD 16 TB
ST16000VN001 - 2RV103 Seagate IronWolf NAS 3.5" SATA HDD 16 TB
ST16000VN001 - 2YU101 Seagate IronWolf NAS 3.5" SATA HDD 16 TB
HDWG21EAZSTA Toshiba N300 NAS 3.5" SATA HDD 14 TB
HDWG21EEZSTA Toshiba N300 NAS 3.5" SATA HDD 14 TB
HDWG21EUZSVA Toshiba N300 NAS 3.5" SATA HDD 14 TB
HDWG21EXZSTA Toshiba N300 NAS 3.5" SATA HDD 14 TB
HDWG21EYZSTA Toshiba N300 NAS 3.5" SATA HDD 14 TB
MN07ACA14T Toshiba MN07ACA*** NAS 3.5" SATA HDD 14 TB
ST14000NE0008 - 2RX103 Seagate IronWolf Pro Enterprise NAS 3.5" SATA HDD 14 TB
ST14000NM001G - 2KJ103 Seagate Exos X16 Enterprise 3.5" SATA HDD 14 TB
ST14000VE0008 Seagate SkyHawkAI Surveillance 3.5" SATA HDD 14 TB
ST14000VN0008 - 2KU103 Seagate IronWolf NAS 3.5" SATA HDD 14 TB
ST14000VN0008 - 2YT101 Seagate IronWolf NAS 3.5" SATA HDD 14 TB
WD140EFGX - 68B0GN0 Western Digital Red Plus NAS 3.5" SATA HDD 14 TB
WD141KFGX Western Digital Red Pro Enterprise NAS 3.5" SATA HDD 14 TB
HAT3300-12T Synology HAT3300 Plus 3.5" SATA HDD 12 TB
HAT3310-12T Synology HAT3310 Plus 3.5" SATA HDD 12 TB
HAT5300-12T Synology HAT5300 Enterprise 3.5" SATA HDD 12 TB
HDWG21CAZSTA Toshiba N300 NAS 3.5" SATA HDD 12 TB
HDWG21CEZSTA Toshiba N300 NAS 3.5" SATA HDD 12 TB
HDWG21CUZSVA Toshiba N300 NAS 3.5" SATA HDD 12 TB
HDWG21CXZSTA Toshiba N300 NAS 3.5" SATA HDD 12 TB
HDWG21CYZSTA Toshiba N300 NAS 3.5" SATA HDD 12 TB
HUH721212ALE600 - 0F30144 Western Digital Ultrastar DC HC520 Enterprise 3.5" SATA HDD 12 TB
HUH721212ALE604 - 0F30146 Western Digital Ultrastar DC HC520 Enterprise 3.5" SATA HDD 12 TB
MN07ACA12T Toshiba MN07ACA*** NAS 3.5" SATA HDD 12 TB
ST12000NE0008 - 2PK103 Seagate IronWolf Pro Enterprise NAS 3.5" SATA HDD 12 TB
ST12000NM001G - 2MV103 Seagate Exos X16 Enterprise 3.5" SATA HDD 12 TB
ST12000VE0008 Seagate SkyHawkAI Surveillance 3.5" SATA HDD 12 TB
ST12000VN0008 - 2PH103 Seagate IronWolf NAS 3.5" SATA HDD 12 TB
ST12000VN0008 - 2YS101 Seagate IronWolf NAS 3.5" SATA HDD 12 TB
WD120EFBX - 68B0EN0 Western Digital Red Plus NAS 3.5" SATA HDD 12 TB
WD121KFBX Western Digital Red Pro Enterprise NAS 3.5" SATA HDD 12 TB
HDWG11AAZSTA Toshiba N300 NAS 3.5" SATA HDD 10 TB
HDWG11AEZSTA Toshiba N300 NAS 3.5" SATA HDD 10 TB
HDWG11AUZSVA Toshiba N300 NAS 3.5" SATA HDD 10 TB
HDWG11AXZSTA Toshiba N300 NAS 3.5" SATA HDD 10 TB
HDWG11AYZSTA Toshiba N300 NAS 3.5" SATA HDD 10 TB
HUH721010ALE600 - 0F27452 Western Digital Ultrastar DC HC510 Enterprise 3.5" SATA HDD 10 TB
HUH721010ALE600 - 0F27604 Western Digital Ultrastar DC HC510 Enterprise 3.5" SATA HDD 10 TB
MN06ACA10T Toshiba MN06ACA*** NAS 3.5" SATA HDD 10 TB
ST10000NE0008 - 2PL103 Seagate IronWolf Pro Enterprise NAS 3.5" SATA HDD 10 TB
ST10000NM001G - 2MW103 Seagate Exos X16 Enterprise 3.5" SATA HDD 10 TB
ST10000VE0008 Seagate SkyHawkAI Surveillance 3.5" SATA HDD 10 TB
ST10000VN000 - 3AK101 Seagate IronWolf NAS 3.5" SATA HDD 10 TB
ST10000VN0008 - 2PJ103 Seagate IronWolf NAS 3.5" SATA HDD 10 TB
WD101EFBX - 68B0AN0 Western Digital Red Plus NAS 3.5" SATA HDD 10 TB
WD102KFBX - 68M95N0 Western Digital Red Pro Enterprise NAS 3.5" SATA HDD 10 TB
HAT3300-8T Synology HAT3300 Plus 3.5" SATA HDD 8 TB
HAT3310-8T Synology HAT3310 Plus 3.5" SATA HDD 8 TB
HAT3320-8T Synology HAT3320 Plus 3.5" SATA HDD 8 TB
HAT5300-8T Synology HAT5300 Enterprise 3.5" SATA HDD 8 TB
HAT5310-8T Synology HAT5310 Enterprise 3.5" SATA HDD 8 TB
HAT5320-8T Synology HAT5320 Enterprise 3.5" SATA HDD 8 TB
HDWG180AZSTA Toshiba N300 NAS 3.5" SATA HDD 8 TB
HDWG180EZSTA Toshiba N300 NAS 3.5" SATA HDD 8 TB
HDWG180UZSVA Toshiba N300 NAS 3.5" SATA HDD 8 TB
HDWG180XZSTA Toshiba N300 NAS 3.5" SATA HDD 8 TB
HDWG180YZSTA Toshiba N300 NAS 3.5" SATA HDD 8 TB
HDWG480AZSTA Toshiba N300 NAS 3.5" SATA HDD 8 TB
HDWG480EZSTA Toshiba N300 NAS 3.5" SATA HDD 8 TB
HDWG480UZSVA Toshiba N300 NAS 3.5" SATA HDD 8 TB
HDWG480XZSTA Toshiba N300 NAS 3.5" SATA HDD 8 TB
HDWG480YZSTA Toshiba N300 NAS 3.5" SATA HDD 8 TB
HDWN180AZSTA Toshiba N300 NAS 3.5" SATA HDD 8 TB
HDWN180EZSTA Toshiba N300 NAS 3.5" SATA HDD 8 TB
HDWN180UZSVA Toshiba N300 NAS 3.5" SATA HDD 8 TB
HDWN180XZSTA Toshiba N300 NAS 3.5" SATA HDD 8 TB
HDWN180YZSTA Toshiba N300 NAS 3.5" SATA HDD 8 TB
HUH721008ALE600 - 0F27455 Western Digital Ultrastar DC HC510 Enterprise 3.5" SATA HDD 8 TB
HUH721008ALE600 - 0F27610 Western Digital Ultrastar DC HC510 Enterprise 3.5" SATA HDD 8 TB
MN05ACA800 Toshiba MN05ACA*** NAS 3.5" SATA HDD 8 TB
MN06ACA800 Toshiba MN06ACA*** NAS 3.5" SATA HDD 8 TB
MN08ADA800 Toshiba MN08AD NAS 3.5" SATA HDD 8 TB
ST8000NE001 - 2M7101 Seagate IronWolf Pro Enterprise NAS 3.5" SATA HDD 8 TB
ST8000NM000A - 2KE101 Seagate Exos 7E8 Enterprise 3.5" SATA HDD 8 TB
ST8000VN002 - 2ZM188 Seagate IronWolf NAS 3.5" SATA HDD 8 TB
ST8000VN004 - 2M2101 Seagate IronWolf NAS 3.5" SATA HDD 8 TB
ST8000VN004 - 3CP101 Seagate IronWolf NAS 3.5" SATA HDD 8 TB
ST8000VX004 - 2M1101 Seagate SkyHawk Surveillance 3.5" SATA HDD 8 TB
WD8003FFBX - 68B9AN0 Western Digital Red Pro Enterprise NAS 3.5" SATA HDD 8 TB
WD80EFBX - 68AZZN0 Western Digital Red Plus NAS 3.5" SATA HDD 8 TB
WD80EFPX - 68C4ZN0 Western Digital Red Plus NAS 3.5" SATA HDD 8 TB
WD80EFZX - 68B3CN0 Western Digital Red Plus NAS 3.5" SATA HDD 8 TB
WD80EFZZ - 68BTXN0 Western Digital Red Plus NAS 3.5" SATA HDD 8 TB
WD82EJRX - 89AD9Y0 Western Digital Purple Surveillance 3.5" SATA HDD 8 TB
WD82EVRX - 52DZFY0 Western Digital Purple Surveillance 3.5" SATA HDD 8 TB
WD82PURX - 64GVLYO Western Digital Purple Surveillance 3.5" SATA HDD 8 TB
WD82PURX - 69GVLY0 Western Digital Purple Surveillance 3.5" SATA HDD 8 TB
WD82PURX - 78GVLY0 Western Digital Purple Surveillance 3.5" SATA HDD 8 TB
WD82PURZ - 85TEUY0 Western Digital Purple Surveillance 3.5" SATA HDD 8 TB
SAT5210-7000G Synology SAT5210 Enterprise 2.5" SATA SSD 7 TB
HAT3300-6T Synology HAT3300 Plus 3.5" SATA HDD 6 TB
HDWG160AZSTA Toshiba N300 NAS 3.5" SATA HDD 6 TB
HDWG160EZSTA Toshiba N300 NAS 3.5" SATA HDD 6 TB
HDWG160UZSVA Toshiba N300 NAS 3.5" SATA HDD 6 TB
HDWG160XZSTA Toshiba N300 NAS 3.5" SATA HDD 6 TB
HDWG160YZSTA Toshiba N300 NAS 3.5" SATA HDD 6 TB
HDWG460AZSTA Toshiba N300 NAS 3.5" SATA HDD 6 TB
HDWG460EZSTA Toshiba N300 NAS 3.5" SATA HDD 6 TB
HDWG460UZSVA Toshiba N300 NAS 3.5" SATA HDD 6 TB
HDWG460XZSTA Toshiba N300 NAS 3.5" SATA HDD 6 TB
HDWG460YZSTA Toshiba N300 NAS 3.5" SATA HDD 6 TB
HUS726T6TALE6L4 - 0B36039 Western Digital Ultrastar DC HC310 Enterprise 3.5" SATA HDD 6 TB
MN06ACA600 Toshiba MN06ACA*** NAS 3.5" SATA HDD 6 TB
MN08ADA600 Toshiba MN08AD NAS 3.5" SATA HDD 6 TB
ST6000NE000 - 2KR101 Seagate IronWolf Pro Enterprise NAS 3.5" SATA HDD 6 TB
ST6000NM021A Seagate Exos 7E8 Enterprise 3.5" SATA HDD 6 TB
ST6000VN001 - 2BB186 Seagate IronWolf NAS 3.5" SATA HDD 6 TB
ST6000VN006 - 2ZM186 Seagate IronWolf NAS 3.5" SATA HDD 6 TB
ST6000VX001 - 2BD186 Seagate SkyHawk Surveillance 3.5" SATA HDD 6 TB
WD6003FFBX - 68MU3N0 Western Digital Red Pro Enterprise NAS 3.5" SATA HDD 6 TB
WD60EFPX - 68C5ZN0 Western Digital Red Plus NAS 3.5" SATA HDD 6 TB
WD60EFZX - 68B3FN0 Western Digital Red Plus NAS 3.5" SATA HDD 6 TB
WD60EJRX Western Digital Purple Surveillance 3.5" SATA HDD 6 TB
WD60PURX - 64T0ZY0 Western Digital Purple Surveillance 3.5" SATA HDD 6 TB
WD60PURZ - 85ZUFY1 Western Digital Purple Surveillance 3.5" SATA HDD 6 TB
HAT3300-4T Synology HAT3300 Plus 3.5" SATA HDD 4 TB
HAT5300-4T Synology HAT5300 Enterprise 3.5" SATA HDD 4 TB
HAT5320-4T Synology HAT5320 Enterprise 3.5" SATA HDD 4 TB
HDWG440AZSTA Toshiba N300 NAS 3.5" SATA HDD 4 TB
HDWG440EZSTA Toshiba N300 NAS 3.5" SATA HDD 4 TB
HDWG440UZSVA Toshiba N300 NAS 3.5" SATA HDD 4 TB
HDWG440XZSTA Toshiba N300 NAS 3.5" SATA HDD 4 TB
HDWG440YZSTA Toshiba N300 NAS 3.5" SATA HDD 4 TB
HDWQ140AZSTA Toshiba N300 NAS 3.5" SATA HDD 4 TB
HDWQ140EZSTA Toshiba N300 NAS 3.5" SATA HDD 4 TB
HDWQ140UZSVA Toshiba N300 NAS 3.5" SATA HDD 4 TB
HDWQ140XZSTA Toshiba N300 NAS 3.5" SATA HDD 4 TB
HDWQ140YZSTA Toshiba N300 NAS 3.5" SATA HDD 4 TB
HUS726T4TALE6L4 - 0B36040 Western Digital Ultrastar DC HC310 Enterprise 3.5" SATA HDD 4 TB
MG04ACA400E Toshiba MG04ACA**** Enterprise 3.5" SATA HDD 4 TB
MN04ACA400 Toshiba MN04ACA*** NAS 3.5" SATA HDD 4 TB
MN08ADA400E Toshiba MN08AD NAS 3.5" SATA HDD 4 TB
ST4000NE001 - 2MA101 Seagate IronWolf Pro Enterprise NAS 3.5" SATA HDD 4 TB
ST4000NM002A Seagate Exos 7E8 Enterprise 3.5" SATA HDD 4 TB
ST4000VN006 - 3CW104 Seagate IronWolf NAS 3.5" SATA HDD 4 TB
ST4000VN008 - 2DR166 Seagate IronWolf NAS 3.5" SATA HDD 4 TB
WD4003FFBX Western Digital Red Pro Enterprise NAS 3.5" SATA HDD 4 TB
WD40EFPX - 68C6CN0 Western Digital Red Plus NAS 3.5" SATA HDD 4 TB
WD40EFZX - 68AWUN0 Western Digital Red Plus NAS 3.5" SATA HDD 4 TB
WD40EJRX Western Digital Purple Surveillance 3.5" SATA HDD 4 TB
WD40PURX - 64GVNY0 Western Digital Purple Surveillance 3.5" SATA HDD 4 TB
WD40PURZ Western Digital Purple Surveillance 3.5" SATA HDD 4 TB
SAT5200-3840G Synology SAT5200 Enterprise 2.5" SATA SSD 3.84 TB
SAT5210-3840G Synology SAT5210 Enterprise 2.5" SATA SSD 3.84 TB
SAT5220-3840G Synology SAT5220 Enterprise 2.5" SATA SSD 3.84 TB
SAT5221-3840G Synology SAT5221 Enterprise 2.5" SATA SSD 3.84 TB
MG04ACA300E Toshiba MG04ACA**** Enterprise 3.5" SATA HDD 3 TB
ST3000VN006 - 3CW10G Seagate IronWolf NAS 3.5" SATA HDD 3 TB
ST3000VN007 - 2AH16M Seagate IronWolf NAS 3.5" SATA HDD 3 TB
ST3000VN007 - 2E4166 Seagate IronWolf NAS 3.5" SATA HDD 3 TB
ST3000VX009 Seagate SkyHawk Surveillance 3.5" SATA HDD 3 TB
WD30EFPX - 68C6CN0 Western Digital Red Plus NAS 3.5" SATA HDD 3 TB
WD30EFZX - 68AWUN0 Western Digital Red Plus NAS 3.5" SATA HDD 3 TB
WD30EJRX Western Digital Purple Surveillance 3.5" SATA HDD 3 TB
WD30PURX Western Digital Purple Surveillance 3.5" SATA HDD 3 TB
WD30PURZ Western Digital Purple Surveillance 3.5" SATA HDD 3 TB
HAT3300-2T Synology HAT3300 Plus 3.5" SATA HDD 2 TB
HUS722T2TALA604 - 1W10002 Western Digital Ultrastar 7K2 Enterprise 3.5" SATA HDD 2 TB
MG04ACA200E Toshiba MG04ACA**** Enterprise 3.5" SATA HDD 2 TB
ST2000NE001 - 2M5101 Seagate IronWolf Pro Enterprise NAS 3.5" SATA HDD 2 TB
ST2000NM001A Seagate Exos 7E8 Enterprise 3.5" SATA HDD 2 TB
ST2000VN003 - 3CW102 Seagate IronWolf NAS 3.5" SATA HDD 2 TB
ST2000VN004 - 2E4164 Seagate IronWolf NAS 3.5" SATA HDD 2 TB
WD20EFPX - 68C4TN0 Western Digital Red Plus NAS 3.5" SATA HDD 2 TB
WD20EFZX - 68AWUN0 Western Digital Red Plus NAS 3.5" SATA HDD 2 TB
WD20EJRX Western Digital Purple Surveillance 3.5" SATA HDD 2 TB
WD20PURX Western Digital Purple Surveillance 3.5" SATA HDD 2 TB
WD20PURZ Western Digital Purple Surveillance 3.5" SATA HDD 2 TB
SAT5200-1920G Synology SAT5200 Enterprise 2.5" SATA SSD 1.92 TB
SAT5210-1920G Synology SAT5210 Enterprise 2.5" SATA SSD 1.92 TB
SAT5220-1920G Synology SAT5220 Enterprise 2.5" SATA SSD 1.92 TB
SAT5221-1920G Synology SAT5221 Enterprise 2.5" SATA SSD 1.92 TB
HUS722T1TALA604 - 1W10001 Western Digital Ultrastar 7K2 Enterprise 3.5" SATA HDD 1 TB
ST1000VN002 - 2EY102 Seagate IronWolf NAS 3.5" SATA HDD 1 TB
ST1000VN008 - 3CW10C Seagate IronWolf NAS 3.5" SATA HDD 1 TB
SAT5200-960G Synology SAT5200 Enterprise 2.5" SATA SSD 960 GB
SAT5210-960G Synology SAT5210 Enterprise 2.5" SATA SSD 960 GB
SAT5220-960G Synology SAT5220 Enterprise 2.5" SATA SSD 960 GB
SAT5221-960G Synology SAT5221 Enterprise 2.5" SATA SSD 960 GB
SAT5200-480G Synology SAT5200 Enterprise 2.5" SATA SSD 480 GB
SAT5210-480G Synology SAT5210 Enterprise 2.5" SATA SSD 480 GB
SAT5220-480G Synology SAT5220 Enterprise 2.5" SATA SSD 480 GB
SAT5221-480G Synology SAT5221 Enterprise 2.5" SATA SSD 480 GB

Going big on the DS1821+?

At the top of the capacity range only enterprise lines are listed. They are built for sustained 7200RPM writes and 24/7 RAID duty — the right choice for a full-bay build: