Server Drive Caddies & Trays — HP/Dell SFF/LFF
Published April 7, 2026 · 10 min read · By Pro Disk Network Team
Complete guide to server drive caddies — HP 651687-001, Dell 0G302D, 2.5" SFF and 3.5" LFF hot-swap trays. Which caddy fits your server? Find out here.
Topics: Drive Caddy, SFF, LFF, HP, Dell, Hot-Swap
Server Drive Caddies — The $5 Part That Stops a $5,000 Server
You just bought a bare drive on eBay. You slide it into your server. It does not fit. Why? Because enterprise servers use proprietary hot-swap drive caddies (also called trays, carriers, or sleds) that hold the drive and snap into the drive bay. Without the caddy, the drive literally cannot be installed.
Pro Disk Network stocks 8,800+ drive caddies and trays for HP, Dell, IBM, Lenovo, and Supermicro servers.
Two Sizes: SFF (2.5") and LFF (3.5")
| Size | Form Factor | Common Use |
|---|
| SFF (Small Form Factor) | 2.5-inch | SAS 10K/15K, enterprise SSDs, NVMe U.2 |
| LFF (Large Form Factor) | 3.5-inch | SAS 7.2K, SATA, high-capacity nearline |
HP Drive Caddies
HP 2.5" SFF Caddies
| HP Part # | Compatible Servers | Price |
|---|
| 651687-001 | DL360/DL380 Gen8, Gen9, Gen10 (SC — Smart Carrier) | $5-8 |
| 652585-001 | Same as above (different lot, same caddy) | $5-8 |
| 727695-001 | DL360/DL380 Gen10 (new SC2 carrier) | $6-10 |
HP 3.5" LFF Caddies
| HP Part # | Compatible Servers | Price |
|---|
| 651314-001 | DL380 Gen8/Gen9 LFF, ML350 Gen8/Gen9 | $6-10 |
| 652998-001 | Same (different lot) | $6-10 |
HP caddy compatibility rule: Gen8, Gen9, and Gen10 all use the same 651687-001 SFF caddy. If your server has the blue tab release latch, this is the caddy you need.
HP NVMe Caddies
| HP Part # | Description | Price |
|---|
| 727286-001 | NVMe SFF Express Bay carrier | $10-18 |
Dell Drive Caddies
Dell 2.5" SFF Caddies
| Dell Part # | Compatible Servers | Price |
|---|
| 0G302D | R620, R630, R640, R720, R730, R740 (all 12th-15th Gen) | $4-7 |
| 0KG7NR | Same (different lot, same caddy) | $4-7 |
| DXD9H | R640, R740, R940 (14th Gen — updated latch) | $5-8 |
Dell 3.5" LFF Caddies
| Dell Part # | Compatible Servers | Price |
|---|
| 0F238F | R720, R730, T620, T630 LFF | $5-8 |
| 0X7K8W | Same (different lot) | $5-8 |
| 0KG1CH | R740xd, R540 LFF (14th Gen) | $6-10 |
Dell caddy compatibility rule: Dell uses the same 0G302D SFF caddy across ALL 12th, 13th, and 14th generation rack servers. Buy a 10-pack and you are covered for years.
How Many Caddies Do I Need?
| Server Model | SFF Bays | LFF Bays |
|---|
| Dell R720 (SFF) | 16 | — |
| Dell R720 (LFF) | — | 8 |
| Dell R730 (SFF) | 16 | — |
| Dell R630 | 8 or 10 | — |
| HP DL380 Gen9 (SFF) | 8, 16, or 24 | — |
| HP DL380 Gen9 (LFF) | — | 12 |
Pro tip: Buy 2-3 extra caddies as spares. They break, get lost, and are needed when you add drives later. At $5 each, there is no reason not to have extras.
Bulk Pricing
| Quantity | Discount |
|---|
| 1-9 | Standard price |
| 10-24 | 10% off |
| 25-49 | 15% off |
| 50+ | 20% off — contact sales@prodisknetwork.com |
Browse all drive caddies | HP SFF caddy | Dell SFF caddy | HP LFF caddy | Dell LFF caddy