A cheap SAS hard drive is only useful when it is actually a compatible enterprise SAS HDD. Low-priced results can be misleading when they are smaller-capacity drives, trays, refurbished units or SATA versions of the same family. This page keeps the main results focused on new 3.5-inch SAS HDDs and uses price per TB to make the comparison more meaningful.
Look for the lowest price per TB among new, clearly identified 3.5-inch SAS drives that fit your controller. If used or refurbished storage is acceptable, compare it separately rather than mixing conditions.
See compatible products ↓Current SAS Hard Drives on Amazon 8
Compare 3.5-inch enterprise SAS hard drives that match the capacity and interface on this page. SATA drives, SSDs, trays and accessories are kept separate so you can focus on compatible SAS HDDs.
A saving badge appears only when fresh Amazon data supplies a comparable reference price for the same ASIN.
Seagate EXOS X20 18TB SAS 3.5IN 7200RPM 6GB/S 512E/4K
18TB · $38.30/TB
HGST Ultrastar He8 HUH728080AL5200 | 0F23268 | 8TB 7.2K RPM 128MB Cache SAS 12Gb/s 512E 3.5" Helium Platform Enterprise Hard Drive Bare Drive
8TB · $36.18/TB
Dell 4TB HDD SAS 3,5 Inch 7,2K Near Line, 202V7 (Near Line)
4TB · $40.00/TB
Hpe 834031-B21 8TB 7.2K LFF SAS Hard Drive
8TB · $32.75/TB
Seagate Exos X24 16TB Enterprise Internal Hard Drive HDD - 6GB/s SAS 7200RPM 2.5M MTBF (ST16000NM002H)
16TB · $41.56/TB
HGST Ultrastar He6 6TB 3.5" SAS 7200 RPM Enterprise Internal Hard Drive - SAS 64 Mb Cache, 12Gb/s - HUS726060als640 / 0F18370 64 MB Cache 3.5-Inch Internal Bare or OEM Drives 0F18370
6TB · $37.50/TB
Dell M40TH 8TB 7.2K 12G LFF SAS 512E Hard Drive
8TB · $45.00/TB
New Sealed 857965-001 HPE 10TB SAS 12G MIDLINE 7.2K LFF (3.5IN) SC Hard Drive 857644-B21
10TB · $38.85/TB
Enterprise SATA Alternatives 8
These are enterprise SATA HDDs, shown separately so a lower-cost SATA listing is never mistaken for a SAS drive. They can make sense when your server does not require SAS features.
Seagate Exos 7E10 ST4000NM000B - Hard Drive - 4 TB - SATA 6Gb/s | 2 Million Hour MTBF, 550TB Workload Rate, Data Centers, RAID Systems, Cloud Storage
4TB · $69.52/TB
HGST Ultrastar He6 6TB 3.5" SATA 7200 RPM Enterprise Internal Hard Drive with 64Mb Cache - HUS726060ALA640/ 0F18335 64 MB Cache 3.5-Inch Internal Bare or OEM Drives 0F18335
6TB · $22.50/TB
![Toshiba MG09ACA18TE 18 TB Hard Drive - 3.5 Internal - SATA [SATA/600]](https://m.media-amazon.com/images/I/41LMzYKRp7L._SL160_.jpg)
Toshiba MG09ACA18TE 18 TB Hard Drive - 3.5 Internal - SATA [SATA/600]
18TB · $47.06/TB
Seagate Exos 7E8 6TB Internal Hard Drive Enterprise HDD – CMR 3.5 Inch 512E SATA 6Gb/s 7200 RPM 128MB Cache for Enterprise, Data Center – Frustration Free Packaging (ST6000NM021A)
6TB · $54.73/TB
HGST Ultrastar 7K6000 HUS726060ALE610 0F23001 6TB 7200 RPM SATA 3.5" 512E ISE 128MB Cache Enterprise Hard Drive
6TB · $31.67/TB
Toshiba MG09ACA16TE / JP-EC 7,200 RPM, SATA 24x7, RV Sensor, Helium-Filled Hard Drive, 3.5 Inch Enterprise Grade Hard Drive, 16 TB (CMR), Authorized Japanese Dealer, 5 Year Warranty
16TB · $55.88/TB
Seagate Exos 7E8 8TB Enterprise Capacity HDD - 7200 RPM, 256MB Cache, SATA III 6 Gb/s Interface, 3.5" Internal Hard Drive, Crypto Chia Mining - ST8000NM0055
8TB · $46.88/TB
HGST Ultrastar 7K4000 4 TB 3.5" 7200 RPM SATA Internal Enterprise Hard Drive 64 MB Buffer 6.0Gb/s - HUS724040ALA640 / 0F14688 64 MB Cache 3.5-Inch Internal Bare or OEM Drives 0F14688
4TB · $50.00/TB
SAS Hardware You May Also Need 8
A SAS hard drive needs the right host hardware. Compare HBAs and cables only after checking the connector on your controller or backplane.
SAS HBA Card Compatible with LSI 9300-8i IT Mode 9211-8i 9207-8i | PCIe 3.0 x8, 2x 8643 Internal, PCIe SATA Expansion Card, 12Gb/s SAS + SATA 6Gb/s, HBA Controller for ZFS TrueNAS unRAID NAS
SAS infrastructure
SAS HBA Card Compatible with LSI 9300-8i & D3307 IT Mode HBA Controller | SAS3008, PCIe 3.0 x8, 2x SFF-8643 Internal, 12Gb/s SAS + SATA 6Gb/s, PCIe SATA Expansion Card for ZFS TrueNAS unRAID NAS
SAS infrastructure
2-Pack SFF-8643 to 4x SFF-8482 SAS Forward Breakout Cable 0.5m, 12Gbps | Two 0.5m/1.6ft SAS-3 cables with 29+15-pin power connect up to 8 SAS HDDs/SSDs; for LSI 9300-8i and Broadcom 9400-8i
SAS infrastructure
LSI Logic SAS 9300-8e SGL LSI00343
SAS infrastructure
ADCAUDX Mini-SAS to SAS Cable: 0.5M SFF-8087 to SAS SFF-8087 to SFF-8482 | 4X SFF-8482 Connector with SATA Power Adapter Cable (1.6FT)
SAS infrastructure
Sonilco Storage Configurations Cable Mini SAS HDD SFF-8643 to 4 SFF-8482 with 15-pin Power Port Cord (1 Cable, 0.5 Meter / 1.6 Feet)
SAS infrastructure
NGFF Internal Slimline SAS HD SFF-8654 Host Controller to 4 SFF-8482 Target SAS Hard Disk and SATA Power Breakout Fanout Cable (100cm)
SAS infrastructure
CableCreation Mini SAS 26Pin (SFF-8088) Male to 4 SATA 7Pin Female Cable, Mini SAS Host/Controller to 4 SATA Target/Backplane, 1M / 3.3FT
SAS infrastructure
SAS cables are not universal. Confirm the HBA, backplane and connector standard before ordering.
Why this buying advice matters
Search results often mix the hard drive with server trays, caddies, cables and SATA versions. A low price is not a bargain if the item is not the SAS HDD you intended to buy.
Before treating a listing as a SAS hard drive, verify the enterprise drive family, supported capacity and an explicit SAS interface. This helps keep SATA versions, accessories and unrelated hardware out of the drive comparison.
What should you compare before buying?
| Option | Best fit | Check before buying |
|---|---|---|
| Lowest price | Smallest cash outlay | Can hide poor $/TB |
| Lowest $/TB | Best capacity value | Better shortlist metric |
| Existing HBA fit | Avoids controller upgrade | Important for total cost |
| OEM fit | May reduce server support risk | Can cost more |
SAS Price per TB Calculator
Compare two drives using the same currency and condition.
SAS hard drive buying guide
Why the cheapest SAS listing can be misleading
How to compare cheap SAS capacities
Compare the price per TB across 8TB, 12TB, 16TB, 18TB and larger drives rather than choosing by sticker price alone.
If a smaller drive requires more bays to reach your target capacity, the apparent saving can disappear once chassis, power and HBA port costs are included.
When not to chase the lowest price
If the server requires vendor-qualified firmware or support, a standard enterprise drive may not be the right substitute for an OEM part.
Likewise, if the listing has unclear condition, missing warranty information or an unfamiliar sector format, paying slightly more for a clearly identified drive can reduce deployment risk.
Related SAS buying guides
Frequently asked questions
Are cheap SAS drives usually used?
Many low-cost SAS offers are used or refurbished, but this guide focuses on new drives. Refurbished SAS should be compared separately because condition, warranty and expected service life are different.
What capacity is usually cheapest per TB?
It changes with inventory. Use the live price-per-TB comparison rather than assuming one capacity always wins.
Can I use a cheap SAS drive in a desktop PC?
Only if the PC has an appropriate SAS HBA or controller and the correct cabling. A standard SATA motherboard port is not enough.
Should I buy an OEM Dell or HPE SAS drive?
Buy OEM when qualification or support matters. Otherwise compare the price premium with a standard enterprise SAS drive that your hardware supports.
Manufacturer and platform references
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