3.5" Hard Drives
3.5-inch (LFF) SAS and SATA hard drives are the capacity drives of the server world: most spin at 7,200 RPM as NL-SAS or SATA models, and the size also includes 15K RPM SAS performance drives. Check each listing for self-encrypting (SED) and 4Kn or 512e advanced-format builds. Match the server maker's part number and the carrier your LFF bay takes; every drive is tested on arrival and before shipment in our lab, with the warranty term shown on the product page.
Other drive pages: SAS hard drives, NL-SAS 7.2K drives and SATA hard drives, or every server hard drive.
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Dell 55H49 3TB 7.2K NL SAS 3.5" 6Gbps Hard Drive | Seagate ST3TBNM0023Availability: Available by QuoteManufacturer: Dell Condition: Refurbished 1 Year WarrantyRequest PricingOut of stock - Dell 56HPY 3TB 7.2K NL SAS 3.5" 6Gbps EP+ Hard Drive | HGST HUS723030ALS640Availability: Available by QuoteManufacturer: Dell Condition: Refurbished 1 Year WarrantyRequest PricingOut of stock
- Dell 5JH5X 4TB 7.2K NL SAS 3.5" 12Gbps Hard Drive | Seagate ST4000NM0295Availability: Available by QuoteManufacturer: Dell Condition: Refurbished 1 Year WarrantyRequest PricingOut of stock
- Dell 5JH5X-NEW 4TB 7.2K NL SAS 3.5" 12Gbps Hard Drive | Seagate ST4000NM0295Availability: Available by QuoteManufacturer: Dell Condition: New 1 Year WarrantyRequest PricingOut of stock
- Dell 5WF7Y-EQL EqualLogic 5WF7Y 500GB 7.2K SATA 3.5" 3Gbps Hard Drive | HUA722050CLA330Availability: Available by QuoteManufacturer: Dell Condition: Refurbished 1 Year WarrantyRequest PricingOut of stock
- Dell 5XTFH 600GB 15K SAS 3.5" 6Gbps SED Hard Drive | Seagate ST3600957SSAvailability: Available by QuoteManufacturer: Dell Condition: Refurbished 1 Year WarrantyRequest PricingOut of stock
- Dell 61FFW 4TB 7.2K SATA 3.5" 6Gbps Hard Drive | HGST HUS726040ALA610Availability: Available by QuoteManufacturer: Dell Condition: Refurbished 1 Year WarrantyRequest PricingOut of stock
- Dell 62VY2 1TB 7.2K NL SAS 3.5" 6Gbps EP+ Hard Drive | Seagate ST1000NM0001Availability: Available by QuoteManufacturer: Dell Condition: Refurbished 1 Year WarrantyRequest PricingOut of stock
- Dell 67TMT 2TB 7.2K NL SAS 3.5" 6Gbps Hard Drive | Seagate ST2000NM0001Availability: Available by QuoteManufacturer: Dell Condition: Refurbished 1 Year WarrantyRequest PricingOut of stock
- Dell 698PM 3TB 7.2K NL SAS 3.5" 6Gbps SED Hard Drive | Seagate ST33000652SSAvailability: Available by QuoteManufacturer: Dell Condition: Refurbished 1 Year WarrantyRequest PricingOut of stock
- Dell 6H6FG 3TB 7.2K NL SAS 3.5" 6Gbps EP+ Hard Drive | Seagate ST33000650SSAvailability: Available by QuoteManufacturer: Dell Condition: Refurbished 1 Year WarrantyRequest PricingOut of stock
- Dell 6NVK9 2TB 7.2K SATA 3.5" 6Gbps Hard Drive | HGST HUS724020ALA640Availability: Available by QuoteManufacturer: Dell Condition: Refurbished 1 Year WarrantyRequest PricingOut of stock
3.5-inch drive classes
A 3.5-inch server drive is almost always a 7,200 RPM capacity drive, built as nearline SAS for SAS controllers or as SATA; the 15K class also exists in 3.5-inch, up to 600GB in Seagate's data sheet:
| Class | Interface and ports (Seagate) | Spindle speed | Typical role |
|---|---|---|---|
| Nearline SAS | 12Gb/s SAS, dual-port | 7,200 RPM | High-capacity density RAID storage |
| Enterprise SATA | 6Gb/s SATA, single-port | 7,200 RPM | Capacity storage on SATA ports or behind SAS controllers |
| 15K SAS, 3.5-inch | 6Gb/s SAS | 15,000 RPM | Business and transaction processing |
Many capacity drives come in 512e and 4Kn sector formats as well as 512n. Dell's PERC 11 guide does not allow 512-byte and 4 KB native drives in the same virtual disk, and it supports 4K drives only in UEFI boot mode, so match the format of the drives already in the array.
Which servers take 3.5-inch drives
Dell documents these 3.5-inch bay counts and drive lists by PowerEdge generation:
| PowerEdge generation | 3.5-inch bays Dell documents | 3.5-inch drives in Dell's lists |
|---|---|---|
| 12th | Up to 8 on the standard 2U chassis, 12 on the xd | Hot-swappable 3.5-inch drives |
| 14th | 4 in 1U; 8 or 12 in 2U, plus 2 rear and 4 mid-bay on the xd | 7.2K SATA from 1 to 16TB, 7.2K SAS from 1 to 10TB |
| 15th | 12 in 2U | 7.2K SATA and SAS from 2 to 18TB |
| 16th | 12 in 2U | 7.2K SATA and SAS from 2 to 20TB |
HPE's DL380 Gen10 QuickSpecs give that server an 8-bay or 12-bay LFF front, and the 12-bay chassis can add a 4-bay LFF mid-plane and a 3-bay LFF rear cage.
Carriers for 3.5-inch bays
A 3.5-inch bay takes its drive in a 3.5-inch carrier, and Dell's 3.5-inch drive adapter lets the same carrier hold a 2.5-inch drive when a smaller SSD or SAS drive has to go in a large-form-factor slot. Shop carriers under hard drive caddies and trays, and 2.5-inch drives are on 2.5-inch hard drives. For the difference between the two interfaces, read SAS vs SATA.
