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Network Storage

UniFi UNAS Pro 8

$799 MSRP
UniFi UNAS Pro 8, a 2U rack-mount NAS with eight drive trays in two rows of four

UniFi UNAS Pro 8: what it is & who it's for

Eight bays, two NVMe cache slots, 16 GB of memory and three 10-gigabit ports, behind a pair of hot-swappable power supplies. Power redundancy is built in here, where the UNAS Pro and UNAS Pro 4 hand it to a separate USP-RPS. Shared storage that has to stay up: a rack with 2U and 480 mm of depth free, clients on 10-gigabit RJ45 or SFP+, and no appetite for a separate redundant power unit.

Specifications

UniFi UNAS Pro 8 specifications
ProcessorQuad-core ARM Cortex-A57 at 2.0 GHz
System Memory16 GB
Drive Capacity(8) 2.5/3.5" HDD / SSD + (2) M.2 NVMe SSD
SSD CacheYes
Max NVMe SSD Capacity4 TiB
Max Power Budget for Drives225 W
Networking Interface(2) 10G SFP+ (10G only) + (1) 10 GbE RJ45 (10G/5G/2.5G/1G/100M)
RAID TypesRAID 5, RAID 6, RAID 10
RAID GroupsMultiple
Hot Spare SupportYes
File ProtocolsSMB, NFS
SnapshotsYes
File EncryptionYes
Time Machine BackupYes
Backup DestinationsRemote UNAS, CIFS/SMB server, cloud (Google Drive, OneDrive, Dropbox, Amazon S3, Backblaze B2, Wasabi)
Power RedundancyYes (dual hot-swappable PSUs)
Power Supply(2) hot-swappable AC/DC 550 W power modules
Form FactorRackmount (2U)
Dimensions442.4 × 480 × 87.4 mm
Weight11.5 kg
Max Power Draw250 W

Verdict

Eight bays, two NVMe cache slots, 16 GB of memory and three 10-gigabit ports, behind a pair of hot-swappable power supplies. Power redundancy is built in here, where the UNAS Pro and UNAS Pro 4 hand it to a separate USP-RPS.

Pros
  • Eight 2.5/3.5" bays plus two M.2 NVMe slots for SSD cache
  • Two 10G SFP+ ports and a multi-gig 10 GbE RJ45 — the RJ45 on the UNAS Pro and UNAS Pro 4 stops at 1 GbE
  • Two hot-swappable 550 W power modules, so redundancy needs no USP-RPS
  • 16 GB of memory, double the UNAS Pro and UNAS Pro 4
  • Multiple RAID groups and hot-spare support, with RAID 5, 6 and 10 listed
Cons
  • $799 before a single drive, and eight bays is a large disk bill
  • 480 mm deep and 11.5 kg — 155 mm deeper than the UNAS Pro, so check the rack first
  • The same quad-core Cortex-A57 at 2.0 GHz as the $499 UNAS Pro 4: the extra $300 buys bays, memory, a faster RJ45 and power modules, not a faster processor
Best forShared storage that has to stay up: a rack with 2U and 480 mm of depth free, clients on 10-gigabit RJ45 or SFP+, and no appetite for a separate redundant power unit.
A UNAS Pro 8 at U4 and U5 of a UniFi rack, its front panel labelled, below a 1U recorder and above a brush panel.
The UNAS Pro 8 in our rack.