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1TB to 32TB 3.5" Serial Attached SCSI (SAS) Hard Drives

HDDs (Hard Disk Drives) are the most cost effective data storage device. While HDDs are considerably slower than SSDs, you get considerably more TB of storage per pound spent. Server HDDs are designed for 24/7 usage and differ from consumer HDDs in having greater endurance and longer warranties.

SAS HDDs are for use in hot swap 3.5in drive bays, connecting to the server via a SAS backplane and controller. These particular SAS HDDss communicate at up to 22,500MB/s and come in a wide variety of capacities.

You can check the compatibility of these HDDs with your server in your system documentation or our buyers guide.

Need help? Read our Internal Storage Buying Guide

2TB Seagate Exos 7E10 ST2000NM001B SAS Hard Drive, 512N, 3.5" HDD, SAS 12Gb/s, 7200rpm, 256MB Cache, 4.16ms, OEMSeagate Exos 7E10 2TB 3.5" 512N SAS HDD/Hard Drive LN121265
Key Specifications
- 2TB Seagate Exos 7E10 ST2000NM001B SAS Hard Drive
- 512N
- 3.5" HDD
- SAS 12Gb/s
- 7200rpm
- 256MB Cache
- 4.16ms
- OEM
No customer review
2TB Seagate Exos 7E10 ST2000NM018B SAS Hard Drive, 512E/4kn, 3.5" HDD, SAS 12Gb/s, 7200rpm, 256MB Cache, 4.16ms, OEMSeagate Exos 7E10 2TB 3.5" 512E/4kn SAS HDD/Hard Drive LN121264
Key Specifications
- 2TB Seagate Exos 7E10 ST2000NM018B SAS Hard Drive
- 512E/4kn
- 3.5" HDD
- SAS 12Gb/s
- 7200rpm
- 256MB Cache
- 4.16ms
- OEM
No customer review
Call for price
4TB Seagate Exos 7E10 ST4000NM001B SAS Hard Drive, 512N, 3.5" HDD, SAS 12Gb/s, 7200rpm, 256MB Cache, 4.16ms, OEMSeagate Exos 7E10 4TB 3.5" 512N SAS HDD/Hard Drive LN121266
Key Specifications
- 4TB Seagate Exos 7E10 ST4000NM001B SAS Hard Drive
- 512N
- 3.5" HDD
- SAS 12Gb/s
- 7200rpm
- 256MB Cache
- 4.16ms
- OEM
No customer review
Call for price
4TB Seagate Exos 7E10 ST4000NM025B SAS Hard Drive, 512E/4kn, 3.5" HDD, SAS 12Gb/s, 7200rpm, 256MB Cache, 4.16ms, OEMSeagate Exos 7E10 4TB 3.5" 512E/4kn SAS HDD/Hard Drive LN121268
Key Specifications
- 4TB Seagate Exos 7E10 ST4000NM025B SAS Hard Drive
- 512E/4kn
- 3.5" HDD
- SAS 12Gb/s
- 7200rpm
- 256MB Cache
- 4.16ms
- OEM
No customer review
£259.99
Pre Order
Pre order
6TB Seagate Exos 7E10 ST6000NM001B SAS Hard Drive, 512N, 3.5" HDD, SAS 12Gb/s, 7200rpm, 256MB Cache, 4.16ms, OEMSeagate Exos 7E10 6TB 3.5" 512N SAS HDD/Hard Drive LN121271
Key Specifications
- 6TB Seagate Exos 7E10 ST6000NM001B SAS Hard Drive
- 512N
- 3.5" HDD
- SAS 12Gb/s
- 7200rpm
- 256MB Cache
- 4.16ms
- OEM
No customer review
Get it Tomorrow, 11 Sep
£309.98
Add To Basket
Get it Tomorrow, 11 SepIn stock
Get it Tomorrow, 11 Sep
6TB Seagate Exos 7E10 ST6000NM020B SAS Hard Drive, 512E/4kn, 3.5" HDD, SAS 12Gb/s, 7200rpm, 256MB Cache, 4.16ms, OEMSeagate Exos 7E10 6TB 3.5" 512E/4kn SAS HDD/Hard Drive LN121269
Key Specifications
- 6TB Seagate Exos 7E10 ST6000NM020B SAS Hard Drive
- 512E/4kn
- 3.5" HDD
- SAS 12Gb/s
- 7200rpm
- 256MB Cache
- 4.16ms
- OEM
No customer review
Call for price
8TB Seagate Exos 7E10 ST8000NM018B SAS Hard Drive, 512E/4kn, 3.5" HDD, SAS 12Gb/s, 7200rpm, 256MB Cache, 4.16ms, OEMSeagate Exos 7E10 8TB 3.5" 512E/4kn SAS HDD/Hard Drive LN121270
Key Specifications
- 8TB Seagate Exos 7E10 ST8000NM018B SAS Hard Drive
- 512E/4kn
- 3.5" HDD
- SAS 12Gb/s
- 7200rpm
- 256MB Cache
- 4.16ms
- OEM
No customer review
£403.49
Pre Order
Pre order
10TB Seagate Exos 7E10 ST10000NM018B SAS Hard Drive, 512E/4kn, 3.5" HDD, SAS 12Gb/s, 7200rpm, 256MB Cache, 4.16ms, OEMSeagate Exos 7E10 10TB 3.5" 512E/4kn SAS HDD/Hard Drive LN121652
Key Specifications
- 10TB Seagate Exos 7E10 ST10000NM018B SAS Hard Drive
- 512E/4kn
- 3.5" HDD
- SAS 12Gb/s
- 7200rpm
- 256MB Cache
- 4.16ms
- OEM
No customer review
Call for price
10TB Western Digital Ultrastar DC HC330 SAS Hard Drive, 3.5" HDD, SAS 12Gb/s, 7200rpm, 256MB Cache, 512E/4096N, OEMWD Ultrastar 0B42258 DC HC330 10TB 3.5" SAS HDD/Hard Drive LN116668
Key Specifications
- 10TB Western Digital Ultrastar DC HC330 SAS Hard Drive
- 3.5" HDD
- SAS 12Gb/s
- 7200rpm
- 256MB Cache
- 512E/4096N
- OEM
No customer review
£529.99
Pre Order
Pre order
10TB Toshiba MG10-D Series MG10SDA10TE Hard Disk Drive, 3.5", SAS (12Gb/s), 7200RPM, 512MB Cache, OEMToshiba MG10-D Series MG10SDA10TE 10TB 3.5" SAS 12Gb/s 7200RPM Enterprise HDD / Hard Disk Drive LN172198
Key Specifications
- 10TB Toshiba MG10-D Series MG10SDA10TE Hard Disk Drive
- 3.5"
- SAS (12Gb/s)
- 7200RPM
- 512MB Cache
- OEM
No customer review
Call for price
12TB Seagate Exos X24 ST12000NM007H SAS Hard Drive, 3.5" HDD, SAS 12Gb/s, 7200rpm, 512MB Cache, 512E/4KN, 4.16ms, OEMSeagate Exos X24 12TB 3.5" SAS 12GB/s HDD/Hard Drive LN142808
Key Specifications
- 12TB Seagate Exos X24 ST12000NM007H SAS Hard Drive
- 3.5" HDD
- SAS 12Gb/s
- 7200rpm
- 512MB Cache
- 512E/4KN
- 4.16ms
- OEM
Customer Review (2)
£559.99
Pre Order
Pre order
16TB Seagate Exos X24 ST16000NM007H SAS Hard Drive, 3.5" HDD, SAS 12Gb/s, 7200rpm, 512MB Cache, 512E/4KN, 4.16ms, OEMSeagate Exos X24 16TB 3.5" SAS 12GB/s HDD/Hard Drive LN142807
Key Specifications
- 16TB Seagate Exos X24 ST16000NM007H SAS Hard Drive
- 3.5" HDD
- SAS 12Gb/s
- 7200rpm
- 512MB Cache
- 512E/4KN
- 4.16ms
- OEM
No customer review
£616.49
Pre Order
Pre order
16TB Toshiba MG11SCA16TE Hard Disk Drive, 3.5", SAS-3 (12Gb/s), CMR, 7200RPM, 1024MB Cache, OEMToshiba MG11SCA16TE 16TB 3.5" SAS-3 7200RPM CMR HDD / Hard Disk Drive LN171397
Key Specifications
- 16TB Toshiba MG11SCA16TE Hard Disk Drive
- 3.5"
- SAS-3 (12Gb/s)
- CMR
- 7200RPM
- 1024MB Cache
- OEM
No customer review
Get it Tomorrow, 11 Sep
£739.99
Add To Basket
Get it Tomorrow, 11 SepIn stock
Get it Tomorrow, 11 Sep
18TB Toshiba MG11SCA18TE Hard Disk Drive, 3.5", SAS-3 (12Gb/s), CMR, 7200RPM, 1024MB Cache, OEMToshiba MG11SCA18TE 18TB 3.5" SAS-3 7200RPM CMR HDD / Hard Disk Drive LN172752
Key Specifications
- 18TB Toshiba MG11SCA18TE Hard Disk Drive
- 3.5"
- SAS-3 (12Gb/s)
- CMR
- 7200RPM
- 1024MB Cache
- OEM
No customer review
Call for price
20TB Seagate Exos X24 ST20000NM007H SAS Hard Drive, 3.5" HDD, SAS 12Gb/s, 7200rpm, 512MB Cache, 512E/4KN, 4.16ms, OEMSeagate Exos X24 20TB 3.5" SAS 12GB/s HDD/Hard Drive LN142806
Key Specifications
- 20TB Seagate Exos X24 ST20000NM007H SAS Hard Drive
- 3.5" HDD
- SAS 12Gb/s
- 7200rpm
- 512MB Cache
- 512E/4KN
- 4.16ms
- OEM
Customer Review (1)
£915.98
Pre Order
Pre order
22TB Toshiba MG10SFA22TE Enterprise Hard Drive, 3.5" HDD, SAS 3.0, 7200rpm, 512MB Buffer, OEMToshiba 22TB 3.5" Enterprise SAS HDD/Hard Drive 7200rpm LN144129
Key Specifications
- 22TB Toshiba MG10SFA22TE Enterprise Hard Drive
- 3.5" HDD
- SAS 3.0
- 7200rpm
- 512MB Buffer
- OEM
No customer review
Call for price
24TB Seagate Exos X24 ST24000NM007H SAS Hard Drive, 3.5" HDD, SAS 12Gb/s, 7200rpm, 512MB Cache, 512E/4KN, 4.16ms, OEMSeagate Exos X24 24TB 3.5" SAS 12GB/s HDD/Hard Drive LN142805
Key Specifications
- 24TB Seagate Exos X24 ST24000NM007H SAS Hard Drive
- 3.5" HDD
- SAS 12Gb/s
- 7200rpm
- 512MB Cache
- 512E/4KN
- 4.16ms
- OEM
Customer Review (1)
Call for price
20TB Synology HAS5310-20T Enterprise 3.5" HDD, SAS 12Gb/s, 7200rpm, OEMSynology HAS5310-20T 20TB 3.5" Enterprise SAS HDD/Hard Drive LN151195
Key Specifications
- 20TB Synology HAS5310-20T Enterprise 3.5" HDD
- SAS 12Gb/s
- 7200rpm
- OEM
No customer review
£1,177.99
Pre Order
Pre order
26TB Ultrastar DC HC590 SE 3.5" HDD, SAS III 12Gb/s, 7200rpm, 512MB Cache, CMR, OEMWD Ultrastar DC HC590 26TB 7200rpm 3.5" SAS 12Gb/s Hard Disk Drive LN156319
Key Specifications
- 26TB Ultrastar DC HC590 SE 3.5" HDD
- SAS III 12Gb/s
- 7200rpm
- 512MB Cache
- CMR
- OEM
No customer review
£1,276.99
Pre Order
Pre order
24TB Synology HAS5320-24T Enterprise 3.5" HDD, SAS 12Gb/s, 7200rpm, 1GB Cache, 512e, OEMSynology HAS5320-24T 24TB 3.5" Enterprise SAS HDD / Hard Drive LN169448
Key Specifications
- 24TB Synology HAS5320-24T Enterprise 3.5" HDD
- SAS 12Gb/s
- 7200rpm
- 1GB Cache
- 512e
- OEM
No customer review
48hrReplacement
£1,359.98
Pre Order
Pre order
48hrReplacement

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