Drive Tray & Caddy Finder
Pick your server, workstation or desktop model and get the exact drive tray, caddy, blank filler or 2.5″-to-3.5″ adapter that fits — with OEM part numbers. Covers Dell PowerEdge & Precision, HPE ProLiant & Z-series, Lenovo ThinkStation and Supermicro.
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What is a drive tray (caddy)?
A drive tray — also called a caddy, sled or carrier — is the frame that holds a bare hard drive or SSD and slides it into a hot-swap bay. It aligns the drive's SAS/SATA connector with the server's backplane, locks it in place with a latch, and lets you replace a failed drive without opening the chassis or powering down. In any server or workstation with hot-swap bays, a bare drive simply cannot be installed without the right caddy — and every occupied bay needs its own.
Why trays are model-specific
Every vendor designs its own latch, LED light-pipe and mounting geometry, and changes them between platform generations — which is why a caddy is matched by part number, not by looks. The good news: within a generation family one part number usually covers dozens of machines.
| Platform family | 2.5″ (SFF) caddy | 3.5″ (LFF) caddy |
|---|---|---|
| Dell PowerEdge 11th–13th gen (R610–R630, R710–R730…) | G176J | F238F |
| Dell PowerEdge 14th gen (R440, R640, R740/xd…) | DXD9H | X7K8W |
| HPE ProLiant Gen8–Gen10 (DL360, DL380, ML350…) | 651687-001 | 651314-001 |
| Dell Precision 5820 / 7820 / 7920 | IB5IFK200-600 caddy · 4MTV7 M.2 flex-bay tray | |
| HP Z-series (Z620, Z640, Z820, Z840) | 663074-001 / 506601-002 | |
Use the finder above for the full per-model breakdown — it covers 90+ Dell, HPE, Lenovo and Supermicro machines from the same compatibility data we use in the warehouse.
SFF vs LFF — and putting a 2.5″ SSD in a 3.5″ bay
Most rack servers ship in two chassis variants: SFF (small form factor, 2.5″ bays) and LFF (large form factor, 3.5″ bays). The caddies are not interchangeable between them, so check the front of your machine before ordering. Upgrading an LFF chassis to SSDs? A 2.5″-to-3.5″ converter sled — Dell 9W8C4 for PowerEdge, R494D for OptiPlex, HPE 668261-002 for ProLiant — seats the smaller drive so its connectors line up with the 3.5″ backplane, and rides inside the standard LFF caddy. Planning the array itself? Size capacity and speed with our RAID calculator and IOPS calculator.
Don't run empty bays open: blank fillers
Server cooling assumes front-to-back airflow through fully populated bays. Leave a hot-swap slot open and air short-circuits around your drives, running the whole array hotter; the chassis also loses its EMI shielding. Blank filler caddies close unused slots for a few dollars each — the finder lists the correct blank for every server family, like Dell TW13J (2.5″) or HPE 652994-001 (3.5″).