Compatible hard drives for Synology UC3400
52 drives are on Synology's official compatibility list for the UC3400. Read from synology.com, list refreshed 2026-11-03.
This Synology line keeps the stricter policy: unlisted drives are accepted for migration from an existing system only — new storage pools and caches require drives from the official list below. Full policy guide →
October 2026 — C3RB3R ransomware campaign. Is the UC3400 at risk? Not by model — by DSM build. If this unit runs DSM below 7.4-90075 / 7.3.2-86009-4 / 7.2.2-72806-9 / 7.2.1-69057-12 (or any DSM 6.x), and its admin interface is reachable from the internet, it is exposed to the ongoing C3RB3R campaign. Check Control Panel → Info Center, update, then run the 12-step lockdown. Files already encrypted with .L0CK3D? Recovery guide — don't reboot first.
Capacity range on the official list
Full UC3400 compatibility list
Grouped by part number; Max shows the largest capacity Synology lists. Filter by brand, line or capacity:
| Drive | Brand | Series | Line | Type | Max listed |
|---|---|---|---|---|---|
| HAS5320-24T | Synology | HAS5320 | Enterprise | 3.5" SAS HDD | 24 TB |
| HAS5310-20T | Synology | HAS5310 | Enterprise | 3.5" SAS HDD | 20 TB |
| HAS5300-16T | Synology | HAS5300 | Enterprise | 3.5" SAS HDD | 16 TB |
| HAS5300-12T | Synology | HAS5300 | Enterprise | 3.5" SAS HDD | 12 TB |
| HAS5310-12T | Synology | HAS5310 | Enterprise | 3.5" SAS HDD | 12 TB |
| ST10000NM020B - 2TL213 | Seagate | Exos 7E10 | Enterprise | 3.5" SAS HDD | 10 TB |
| HAS5300-8T | Synology | HAS5300 | Enterprise | 3.5" SAS HDD | 8 TB |
| ST8000NM020B - 2TJ213 | Seagate | Exos 7E10 | Enterprise | 3.5" SAS HDD | 8 TB |
| MZ-ILG7T60 (MZILG7T6HBLA-00A07) | Samsung | PM1653 | Enterprise | 2.5" SAS SSD | 7.68 TB |
| XS7680SE70045 | Seagate | Nytro 3350 | Enterprise | 2.5" SAS SSD | 7.68 TB |
| XS7680SE70055 | Seagate | Nytro 3350 | Enterprise | 2.5" SAS SSD | 7.68 TB |
| ST6000NM022B - 2TG213 | Seagate | Exos 7E10 | Enterprise | 3.5" SAS HDD | 6 TB |
| ST4000NM027B - 2TF213 | Seagate | Exos 7E10 | Enterprise | 3.5" SAS HDD | 4 TB |
| MZ-ILG3T80 (MZILG3T8HCLS-00A07) | Samsung | PM1653 | Enterprise | 2.5" SAS SSD | 3.84 TB |
| MZILT3T8HALS | Samsung | PM1643 | Enterprise | 2.5" SAS SSD | 3.84 TB |
| XS3840SE70004 | Seagate | Nytro 3331 | Enterprise | 2.5" SAS SSD | 3.84 TB |
| XS3840SE70045 | Seagate | Nytro 3350 | Enterprise | 2.5" SAS SSD | 3.84 TB |
| XS3840SE70055 | Seagate | Nytro 3350 | Enterprise | 2.5" SAS SSD | 3.84 TB |
| XS3840SE70084 | Seagate | Nytro 3332 | Enterprise | 2.5" SAS SSD | 3.84 TB |
| XS3200LE70004 | Seagate | Nytro 3531 | Enterprise | 2.5" SAS SSD | 3.2 TB |
| XS3200LE70084 | Seagate | Nytro 3532 | Enterprise | 2.5" SAS SSD | 3.2 TB |
| XS3200ME70004 | Seagate | Nytro 3731 | Enterprise | 2.5" SAS SSD | 3.2 TB |
| ST2000NM020B - 2TD213 | Seagate | Exos 7E10 | Enterprise | 3.5" SAS HDD | 2 TB |
| MZ-ILG1T90 (MZILG1T9HCJR-00A07) | Samsung | PM1653 | Enterprise | 2.5" SAS SSD | 1.92 TB |
| MZILT1T9HAJQ | Samsung | PM1643 | Enterprise | 2.5" SAS SSD | 1.92 TB |
| MZILT1T9HBJR-00007 | Samsung | PM1643a | Enterprise | 2.5" SAS SSD | 1.92 TB |
| XS1920SE70004 | Seagate | Nytro 3331 | Enterprise | 2.5" SAS SSD | 1.92 TB |
| XS1920SE70014 | Seagate | Nytro 3331 | Enterprise | 2.5" SAS SSD | 1.92 TB |
| XS1920SE70045 | Seagate | Nytro 3350 | Enterprise | 2.5" SAS SSD | 1.92 TB |
| XS1920SE70055 | Seagate | Nytro 3350 | Enterprise | 2.5" SAS SSD | 1.92 TB |
| XS1920SE70084 | Seagate | Nytro 3332 | Enterprise | 2.5" SAS SSD | 1.92 TB |
| XS1600LE70004 | Seagate | Nytro 3531 | Enterprise | 2.5" SAS SSD | 1.6 TB |
| XS1600LE70014 | Seagate | Nytro 3531 | Enterprise | 2.5" SAS SSD | 1.6 TB |
| XS1600LE70084 | Seagate | Nytro 3532 | Enterprise | 2.5" SAS SSD | 1.6 TB |
| XS1600ME70004 | Seagate | Nytro 3731 | Enterprise | 2.5" SAS SSD | 1.6 TB |
| XS1600ME70014 | Seagate | Nytro 3731 | Enterprise | 2.5" SAS SSD | 1.6 TB |
| MZ-ILG9600 (MZILG960HCHQ-00A07) | Samsung | PM1653 | Enterprise | 2.5" SAS SSD | 960 GB |
| MZILT960HAHQ | Samsung | PM1643 | Enterprise | 2.5" SAS SSD | 960 GB |
| MZILT960HBHQ-00007 | Samsung | PM1643a | Enterprise | 2.5" SAS SSD | 960 GB |
| XS960SE10003 | Seagate | Nytro 3330 | Enterprise | 2.5" SAS SSD | 960 GB |
| XS960SE70004 | Seagate | Nytro 3331 | Enterprise | 2.5" SAS SSD | 960 GB |
| XS960SE70014 | Seagate | Nytro 3331 | Enterprise | 2.5" SAS SSD | 960 GB |
| XS960SE70045 | Seagate | Nytro 3350 | Enterprise | 2.5" SAS SSD | 960 GB |
| XS960SE70055 | Seagate | Nytro 3350 | Enterprise | 2.5" SAS SSD | 960 GB |
| XS960SE70084 | Seagate | Nytro 3332 | Enterprise | 2.5" SAS SSD | 960 GB |
| XS800LE70004 | Seagate | Nytro 3531 | Enterprise | 2.5" SAS SSD | 800 GB |
| XS800LE70014 | Seagate | Nytro 3531 | Enterprise | 2.5" SAS SSD | 800 GB |
| XS800LE70084 | Seagate | Nytro 3532 | Enterprise | 2.5" SAS SSD | 800 GB |
| XS800ME70004 | Seagate | Nytro 3731 | Enterprise | 2.5" SAS SSD | 800 GB |
| XS800ME70014 | Seagate | Nytro 3731 | Enterprise | 2.5" SAS SSD | 800 GB |
| XS400ME70004 | Seagate | Nytro 3731 | Enterprise | 2.5" SAS SSD | 400 GB |
| XS400ME70014 | Seagate | Nytro 3731 | Enterprise | 2.5" SAS SSD | 400 GB |
Going big on the UC3400?
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: