4 Bays, Rackmount
+Four drive bays in a rackmount chassis
+Can be used as direct-attached storage
+Compact expansion unit for rack installations
$514.26
as of 11/04/2026 02:11 PST - DetailsProduct details
QNAP TR-004U 4 Bay Rackmount NAS Expansion - Optional Use as a Direct-Attached Storage Device
$514.26as of 11/04/2026 02:11 PST - Details
View on AmazonPros
+Four drive bays in a rackmount chassis
+Can be used as direct-attached storage
+Compact expansion unit for rack installations
Compared with the 1 NAS Devices on this page−M.2 SSD slots not listed: 9 of the 18 here list one
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