Enterprise Hard Drives — SAS, SATA, 10K & 15K RPM
Seagate Exos, WD Ultrastar, Toshiba, HGST. 1 TB - 22 TB. Tested for 24/7 duty.
About Enterprise Hard Drives
Enterprise hard drives are not just bigger — they're built for continuous 24/7 duty, higher vibration tolerance, longer MTBF, and deeper command queues than consumer drives. Pro Disk Network stocks the full range of enterprise HDDs: Seagate Exos, WD Ultrastar, Toshiba Enterprise, and HGST — in SAS (12 Gbps) and SATA (6 Gbps) interfaces, 7.2K/10K/15K RPM, and capacities from 1 TB to 22 TB.
Enterprise drives carry a 5-year warranty (versus 1-2 years for consumer drives), ship pre-formatted to 512e or 4Kn sectors per customer spec, and are validated against HP ProLiant, Dell PowerEdge, Cisco UCS, Lenovo ThinkSystem, NetApp, and Supermicro server families. We ship same-day from US inventory with free ground shipping on orders over $150.
SAS vs SATA: which should you buy?
- SAS — full-duplex 12 Gbps, dual-port for multipath, better error handling, choose for production databases and VMware storage
- SATA — half-duplex 6 Gbps, single port, cheaper per TB, ideal for backups, archives, cold storage
- 7.2K RPM — nearline / capacity-oriented workloads (backup, file servers, video surveillance)
- 10K / 15K RPM — performance-oriented workloads (transactional DBs, VDI, OLTP) — SAS only
For performance tiers that used to use 15K SAS, modern deployments typically use SATA/NVMe SSDs (10× faster, same cost). 15K SAS is still valuable for legacy app compatibility and cost-sensitive cached read workloads.
Featured Enterprise Hard Drives Products
03T7739 - Lenovo 900GB 10000RPM SAS 6Gbps 2.5-inch Enterprise Hard Drive$200.00
AL13SXB45EN - HP 450GB SAS 12Gb/s 15000RPM 3.5-inch Enterprise Hard Drive
03T7732 - Lenovo 3TB 7200RPM SAS 6Gb/s 3.5-inch Enterprise Hard Drive$823.14
03T7738 - Lenovo 600GB 10000RPM SAS 6Gb/s 2.5-inch Enterprise Hard Drive$344.84
03T7783 - Lenovo 500GB 7200RPM SATA 3.5-inch Enterprise Hard Drive$292.26
118032840 - EMC 3TB 7200RPM SAS 6Gb/s 3.5-inch Enterprise Hard Drive$712.70
91Y1654 - Lenovo 500GB 7200RPM SATA 3.5-inch Enterprise Hard Drive$282.20
0C19501 - Lenovo 500GB 7200RPM SATA 3.5-inch Enterprise Hard Drive$155.79
4XB0K12303 - Lenovo 300GB 10000RPM SAS 12Gb/s 2.5-inch Enterprise Hard Drive$392.99
0JG1T2 - Dell 600GB 10000RPM SAS 12Gb/s SFF 2.5-inch Enterprise Hard Drive$194.29
JG1T2 - Dell 600GB 10000RPM SAS 12Gb/s SFF 2.5-inch Enterprise Hard Drive$194.29
ST2000NX0323 - Seagate 2TB SAS 12Gb/s 128MB Cache 2.5-inch Enterprise Hard Drive$286.32
J9F49A - HP 1.8TB 10000RPM SAS 12Gb/s 512e 2.5-inch Enterprise Hard Drive$278.95
Hat5300-16T - Synology 16Tb Hat5300 Sata Iii 3.5 Inch Internal Enterprise Hard$1,128.42
880152-001 - HP 300GB SAS 12Gb/s 15000RPM 2.5-inch Enterprise Hard Drive$147.37
873036-001 - HP 1.2TB 10000RPM SAS 12Gb/s 2.5-inch Enterprise Hard Drive$173.68
634603-002 - HP 250GB 7200RPM SATA 6Gb/s 3.5-inch Enterprise Hard Drive$138.95
870797-001 - HPE 600GB 15000RPM SAS 12Gb/s 2.5-inch Enterprise Hard Drive$278.95
Browse all 102,958 Enterprise Hard Drives SKUs.
More Enterprise Hard Drives
- 07N3130 - IBM 36GB 7200RPM Ultra 160 SCSI 3.5-inch Hard Drive $503.09
- CA06550-B15400PS - Fujitsu Enterprise 73.5GB 10000RPM Ultra-320 SCSI 80-Pin 8MB Cache $182.37
- 9406-4327 - IBM 70.56GB 15000RPM Ultra 320 SCSI 3.5-inch Hard Drive for AS400 iSeries $238.13
- CA06350-B260 - Fujitsu Enterprise 146GB 10000RPM Ultra-320 SCSI 68-Pin 8MB Cache 3.5-inch $795.79
- 8203-3585 - IBM 300GB 15000RPM Ultra 320 SCSI 3.5-inch Hard Drive $1,034.53
- CA06560-B200 - Fujitsu Enterprise 73.5GB 15000RPM Ultra-320 SCSI 80-Pin 8MB Cache $165.79
- CA06708-B200 - Fujitsu Enterprise 147GB 15000RPM Ultra-320 SCSI 80-Pin 8MB Cache 3.5-inch $344.33
- MAA3182SC - Fujitsu 18.2GB 7200RPM Ultra-160 SCSI 512KB Cache 80-Pin 3.5-inch Half Height $157.07
- 07N3674 - IBM 18.3GB 7200RPM Ultra-160 SCSI 68-Pin 3.5-inch Hard Drive $494.68
- 24P3700 - IBM 18.2GB SCSI 3.5-inch Hard Drive $296.30
- 25L2141 - IBM 9.1GB 7200RPM Ultra-2 Wide SCSI 68-Pin 3.5-inch Hard Drive $138.95
- 242992-001 - Compaq 2.5GB BIGFOOT IDE 5.25-inch Hard Drive $291.79
- 100-845-369 - EMC 146GB 10000RPM SCSI 8MB Cache 3.5-inch Hard Drive $1,115.29
- CA06308-E142 - Fujitsu Enterprise 147GB 10000RPM Ultra-320 SCSI 80-Pin 8MB Cache 3.5-inch $300.91
- CA06550-B25400PS - Fujitsu Enterprise 147GB 10000RPM Ultra-320 SCSI 80-Pin 8MB Cache $183.96
- MAN3735MP - Fujitsu Enterprise 73.5GB 10000RPM Ultra-160 SCSI 68-Pin 8MB Cache 3.5-inch $736.84
- 03N5267 - IBM 146.8GB 10000RPM Ultra-320 SCSI 80-Pin 3.5-inch Hard Disk Drive for pSeries $495.00
- 18P3549 - IBM 36GB 10000RPM Ultra-320 SCSI 80-Pin 3.5-inch Internal Hard Disk Drive $172.62
- 22L0027 - IBM 4GB 7200RPM Ultra Wide SCSI 3.5-inch Hard Drive $392.99
- 25L1963 - IBM 9GB 7200RPM Ultra2 Wide SCSI 3.5-inch Hard Drive $160.00
- 25R4908 - IBM 73GB 15000RPM Ultra 320 SCSI 3.5-inch Hard Drive $235.79
- 27H1710 - IBM 9GB 7200RPM Ultra Wide SCSI 3.5-inch Hard Drive $260.39
- 33P3378 - IBM 73.4GB 15000RPM Ultra-320 SCSI 3.5-inch Non Hot Swapable Hard Disk Drive $395.34
- 6813-9406 - IBM 8.5GB 7200RPM Ultra SCSI 3.5-inch Hard Drive for AS400 $652.28
- 89H4940 - IBM 9.1GB 7200RPM SCSI Hot Swap 3.5-inch Hard Drive $109.75
- 9113-3835 - IBM 300GB 15000RPM Ultra 320 SCSI 3.5-inch Hard Drive $1,034.53
- 9117-3585 - IBM 300GB 15000RPM Ultra 320 SCSI 3.5-inch Hard Drive $1,034.53
- 9406-1292 - IBM 300GB 15000RPM Ultra 320 SCSI 3.5-inch Hard Drive $1,034.53
- 390-0043-04 - Sun 18.2GB 10000RPM Ultra-160 SCSI 80-Pin 4MB Cache 3.5-inch Hard Drive $163.74
- 540-6599-01 - Sun 73GB 10000RPM Ultra-320 SCSI 80-Pin 3.5-inch Hard Drive $291.79
- DK32EJ72NSUN72G - Sun 73GB 10000RPM Ultra-320 SCSI LVD Hot-Pluggable 80-Pin 3.5-inch Hard $129.51
- ST318404LSun18G - Sun 18GB 10000RPM Ultra-160 SCSI 80-Pin 4MB Cache 3.5-inch Hard Drive $226.08
Most-searched Enterprise Hard Drives part numbers
The enterprise hard drives that US buyers look up most often on Google, from our own Search Console data. Every part listed is priced, photographed and in stock as of 25 October 2026.
| Part number | Description | Price |
|---|---|---|
| 400-BJKT | Dell 400-BJKT 16TB 7200RPM 12Gb/s SAS 256MB Cache 512e Hot-Pluggable 3.5-Inch Hard Drive With Tray For PowerVault ME4084 | $1,142.11 |
| 223X4 | Dell 8TB 7200RPM SAS 12Gb/s 512E Hot-Pluggable 3.5-inch Hard Drive with Tray | $374.66 |
| STKP20000400 | Seagate STKP20000400 Expansion 20 TB USB Hard Drive | $760.53 |
| V2-PS07-030 | EMC 3TB 7200RPM SAS 6Gb/s 3.5-inch Hard Drive | $371.01 |
| WUH722626AL5204 | Western WUH722626AL5204 Western Digital WUH722626AL5204 Ultrastar DC HC590 26TB 7200RPM 12Gb/s SAS 3.5-Inch Hard Drive | $1,376.84 |
| 49Y7409 | 49Y7409 IBM 450GB 10000RPM 2.5-inch SAS 6GB/s Hard Drive | $109.27 |
| ST20000NM000D | Seagate ST20000NM000D Exos X20 Series 20TB 7200RPM SATA 6Gb/s 256MB Cache 3.5-Inch Hard Drive | $776.84 |
| 9CA158-301 | Seagate BarraCuda ES.2 1TB 7200RPM SATA 3Gb/s 32MB Cache 3.5-inch Hard Drive | $451.93 |
| HUH721010ALE604 | HGST Ultrastar DC HC510 10TB 7200RPM SATA 6Gb/s 256MB Cache 3.5-inch Hard Drive | $305.26 |
| 09X49 | Dell 900GB 10000RPM SAS 6Gb/s 64MB Cache 2.5-inch Hard Drive | $491.64 |
| 00AR403 | IBM 1TB SAS 6Gb/s 10000RPM 2.5-inch Hot-Swappable Hard Drive with Tray for StorWize V7000 | $305.26 |
| T7XPD | Dell 12TB 7200RPM SAS 12Gb/s 512e Hot-Pluggable 3.5-inch Nearline Hard Drive | $524.21 |
Enterprise Hard Drives in stock, by capacity
Live count of enterprise hard drives that are priced, photographed and ready to ship, taken from our own catalogue on 26 October 2026. Prices are what you pay, not a list price.
| Capacity | Drives available | Price range | Average |
|---|---|---|---|
| 9GB | 1,722 | $66.97 – $1,171.38 | $305.26 |
| 18GB | 2,292 | $63.77 – $1,218.17 | $285.00 |
| 36GB | 3,317 | $47.37 – $1,936.93 | $305.60 |
| 73GB | 3,966 | $47.37 – $5,543.79 | $287.56 |
| 146GB | 3,875 | $47.37 – $14,704.75 | $344.65 |
| 300GB | 4,870 | $47.37 – $12,846.86 | $501.23 |
| 450GB | 1,163 | $47.37 – $8,024.96 | $489.87 |
| 600GB | 3,311 | $47.37 – $18,389.21 | $683.43 |
| 900GB | 1,255 | $47.37 – $6,451.32 | $685.36 |
| 1TB | 3,688 | $47.37 – $18,181.05 | $574.73 |
| 2TB | 2,091 | $54.74 – $23,373.68 | $551.88 |
| 4TB | 1,383 | $84.21 – $10,348.78 | $713.43 |
Need several of one capacity? Paste the part numbers into the quick order pad, or ask for a bulk quote.
Frequently Asked Questions
What is the difference between enterprise and consumer hard drives?
Enterprise drives are designed for 24/7 continuous operation (workload rating: ~550 TB/year vs ~55 TB/year for consumer), carry 5-year warranties (vs 1-2 years), tolerate vibration from neighboring drives in dense rack-mount chassis, have Time-Limited Error Recovery (TLER) so RAID arrays don't drop drives during recoverable errors, and support 4K native sectors and SAS interface (consumer drives are SATA-only). The MTBF is typically 2-2.5 million hours (enterprise) vs 1 million (consumer).
Are Seagate Exos and WD Ultrastar interchangeable?
For most applications yes — both are JEDEC-spec enterprise SATA/SAS drives in standard 3.5" or 2.5" form factors with identical electrical interfaces. The main differences are firmware behavior (command queue depth, error recovery timing) and specific RAID controller certifications (check your HP Smart Array / Dell PERC / LSI compatibility matrix). Mixing Exos and Ultrastar within the same RAID volume is allowed but not ideal for performance-sensitive arrays.
Do I need SAS drives for a RAID array?
No — modern RAID controllers (HPE Smart Array, Dell PERC H730/H740/H745, LSI MegaRAID) support both SAS and SATA drives, often in the same backplane. For most workloads, SATA enterprise drives + a good controller work perfectly. Choose SAS if you need: dual-port multipathing for high availability, full-duplex I/O for write-intensive databases, or the deeper command queue (255 vs 32 on SATA) for heavy concurrent workloads.
What capacity enterprise hard drive should I buy?
For general-purpose server storage, 4 TB to 12 TB is the sweet spot on cost-per-TB. For backup/archive workloads, 16-22 TB maximizes density. For high-performance arrays, choose multiple smaller drives (8× 4 TB beats 2× 16 TB on IOPS). Beware: drives over 16 TB typically use SMR (Shingled Magnetic Recording) which has terrible random-write performance — verify the drive is CMR (Conventional Magnetic Recording) for production use. Our listings specify recording type.
How long do enterprise hard drives last?
Enterprise drives are rated for 5 years of continuous 24/7 operation and 550 TB/year of read/write workload. In practice, well-cooled enterprise drives often last 7-10 years in production environments. Annual failure rate (AFR) from Backblaze's public datasets shows enterprise SAS/SATA drives at 0.5-1.5% AFR in year 1-3, rising to 2-3% by year 5. Plan your refresh cycle at year 4-5 for mission-critical arrays.