24TB is at the top end of widely available conventional enterprise SAS HDD capacity. Current Exos X24 and Ultrastar HC580 families include 24TB SAS models, making it a serious option for dense storage shelves. Below you can compare current 24TB enterprise SAS HDDs, same-capacity SATA alternatives, and the HBA or cabling hardware you may need to use the drive correctly.
24TB SAS is the capacity-density leader among the sizes compared here. Compare the total cost per usable TB and confirm 512e/4Kn support, HBA/backplane compatibility and replacement strategy before scaling out.
See compatible products ↓Current 24TB SAS Hard Drives on Amazon 1
Compare 24TB enterprise SAS HDDs here. SATA versions, SAS SSDs, smaller high-RPM drives, trays, cables and accessories are kept separate so you can compare like with like.
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Seagate Exos X24 ST24000NM005H 24 TB Hard Drive - 3.5" Internal - SAS (12Gb/s SAS) - Conventional Magnetic Recording (CMR) Method
24TB
24TB Enterprise SATA Alternatives 3
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 X24 ST24000NM001H 24 TB Hard Drive - 3.5" Internal - SATA (SATA/600) - Conventional Magnetic Recording (CMR) Method - Storage Array Device Supported - 7200rpm - Hot Pluggable - 5 Yea
24TB · $56.85/TB
Western Digital Ultrastar DC HC580 WUH722424ALE604 0F62798 24TB 7.2K RPM SATA 6Gb/s 512e 3.5in Enterprise Hard Drive
24TB · $46.12/TB
Western Digital Ultrastar HC590 WUH722624ALE6L4 0F65684 24TB 7.2K RPM SATA 6Gb/s 512e 3.5in Enterprise Hard Drive
24TB · $56.67/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
24TB is at the top end of widely available conventional enterprise SAS HDD capacity. Current Exos X24 and Ultrastar HC580 families include 24TB SAS models, making it a serious option for dense storage shelves.
What should you compare before buying?
| Option | Best fit | Check before buying |
|---|---|---|
| 24TB Seagate Exos SAS | High-capacity server and array use | Verify exact SAS part number |
| 24TB WD Ultrastar SAS | Enterprise storage and dense arrays | Verify SAS model and sector format |
| 24TB Toshiba MG SAS | Enterprise capacity alternative | Verify MG SAS part number |
| 24TB enterprise SATA | Lower controller complexity | Not a SAS replacement when SAS features are required |
SAS Price per TB Calculator
Compare two drives using the same currency and condition.
SAS hard drive buying guide
Is a 24TB SAS hard drive the right size?
How to compare 24TB SAS prices
Compare only clearly identified 24TB SAS HDDs at the same condition. Divide the current drive price by 24 to get a simple price-per-TB figure, then compare that with the neighboring capacity pages.
For an array, multiply the drive price by the planned drive count and divide by usable capacity after redundancy. That exposes cases where a slightly larger drive reduces bay and controller requirements enough to justify the higher unit price.
What to check before installing a 24TB SAS drive
Confirm the HBA or RAID controller supports the drive, and match the cable to the controller connector. A SAS drive cannot be made compatible with a SATA-only motherboard port through a passive adapter.
For replacements, check the existing array sector format, tray or caddy, firmware expectations and actual usable capacity. Enterprise labels can look similar even when the interface or format differs.
When a SATA alternative makes more sense
A same-capacity enterprise SATA drive can be a sensible alternative in a server that does not require dual-port SAS and already has SATA connectivity.
Keep SATA alternatives separate from the SAS results so the cheaper interface is not mistaken for a like-for-like SAS replacement.
Related SAS buying guides
Frequently asked questions
What is a good price for a 24TB SAS hard drive?
Use the current price per TB rather than a fixed threshold. Divide the live price by 24 and compare it with neighboring capacities and the same-capacity SATA alternatives.
Can I use a 24TB SAS drive in a normal desktop?
Yes only with a compatible SAS HBA or controller and the correct cable. A standard SATA motherboard port cannot directly run a SAS drive.
Should I buy 24TB SAS or SATA?
Choose SAS when your server, backplane or storage design requires SAS features. Choose SATA when the system supports it and lower cost or simpler connectivity is more important.
Do all 24TB enterprise drives use the same sector format?
No. Check the exact listing and model documentation for 512e, 4Kn or other enterprise formatting before adding it to an existing array.
Manufacturer and platform references
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