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Drive Cages & RAID Enclosures

Multi-bay enclosures get marketed under "RAID" as a category name whether or not they actually do RAID in hardware. That distinction is the single most important thing to check before buying one — and it's usually buried a few lines down the spec sheet, not in the product title.

The distinction that actually matters

A hardware RAID enclosure has a dedicated controller chip inside that manages the array itself — striping, mirroring, parity — independent of whatever computer it's plugged into. Pull the whole enclosure out and connect it elsewhere, and the array still works. A "multi-bay DAS enclosure" without that controller, despite often looking identical and sitting in the same product category, just presents each drive to the computer separately; any RAID array has to be built and managed entirely in the operating system's own software instead. Both are legitimate products — a fast multi-drive box for independent volumes is a completely reasonable thing to want — but only one of them is actually a RAID device, and the two examples below, from the same manufacturer, illustrate the difference concretely.

This isn't just a shopping footnote. It connects directly to RAID Array Failure and Failed or Interrupted RAID Rebuild elsewhere in this catalog: an array built in software (in Windows Storage Spaces, Apple's software RAID, or Linux mdadm) generally behaves less predictably under a rebuild than a well-implemented hardware controller does, and recovering it later can require knowing exactly which software layer built it in the first place.

Prices verified August 2026 directly from the vendor's own site, in USD. 2026 has seen genuinely unusual hard drive and SSD price increases industry-wide, driven by a flash-memory supply shortage — if enclosure or drive prices look higher than you remember, that's a real market shift, not a markup added here. Confirm the current price before buying.