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3.5 Inch Internal Hard Drives

If you need loads of storage at the best possible price, a 3.5 inch internal hard drive is the smart pick for your desktop. These drives give you massive capacity, often 2TB and up, without the high cost of SSDs, and they’re easy to install in most tower PCs.

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  • 8TB Storage Capacity: Ideal for extensive surveillance data needs
  • AI Surveillance Optimised: Designed for NVRs with AI edge applications
  • High Reliability: Built for consistent, uninterrupted performance
  • Zero Dropped Frames: Supports heavier workloads smoothly
  • Rotational Vibration Sensors: Ensures stability in multi-bay systems
SAVE 8%
SAVE £16
£215.24
£198.97
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  • 8TB Capacity: Ample space for recording and storing footage
  • ImagePerfect™ Firmware: Seamless capture of video from 64 HD cameras
  • SkyHawk Health Mgmt: Proactively maintains drive health and data safety
  • RAID RapidRebuild: Three times faster rebuilds for quick recovery
  • RV Sensors: Ensures optimal performance in multi-bay systems
£185.97
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  • 8TB Capacity: Accommodates large volumes of files and data effortlessly
  • 5400rpm Speed: Ensures steady and reliable data access for all needs
  • 3.5-Inch Form Factor: Standard size for easy desktop upgrades
  • Multi-Tier Caching: Enhances read/write speeds and data flow efficiency
  • Versatile Storage Option: Fits both desktops and all-in-one PCs
SAVE 7%
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£190.00
£175.97
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  • 16TB Capacity: Huge storage for extensive data management needs
  • 7200rpm Speed: Offers rapid data access and reliable performance
  • AgileArray Technology: Enhances RAID setups and NAS optimisations
  • 256MB Cache: Boosts data throughput for faster application response
  • 24/7 Performance: Engineered for continuous, dependable operation
£373.97
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  • 10TB Capacity: Extensive space for all your NAS storage needs
  • 7200rpm Speed: Ensures fast data access and smooth performance
  • NAS Optimisation: AgileArray tech enhances RAID and power efficiency
  • High Cache Options: Speeds up data serving for better user experience
  • Multi-User Technology: Supports simultaneous access without lag
SAVE 12%
SAVE £30
£259.99
£229.97
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  • 2TB Versatile Storage: Ideal for all-round PC storage and backup
  • 7200rpm Speed: Ensures fast data access and transfer rates
  • Multi-Tier Caching: Boosts performance for responsive computing
  • Advanced Power Modes: Saves energy while maintaining performance
  • Proven Dependability: Robust design for reliable data security
SAVE 9%
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£126.97
£114.97
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  • 2TB Storage for Surveillance: Optimised for up to 64 HD cameras
  • 1M Hour MTBF: Designed for superior reliability and durability
  • ATA Streaming Support: Ensures seamless video streaming
  • Error Recovery Built-In: For uninterrupted video recording
  • Form Factor: 3.5in
£126.97
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  • Form Factor: 3.5in
  • Rotation Speed: 7200rpm
  • Thickness: 26mm
SAVE 11%
SAVE £34
£305.99
£271.97
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  • 1TB Storage Capacity: Adequate space for essential surveillance footage
  • ImagePerfect Firmware: Ensures seamless 24/7 video recording
  • RAID RapidRebuild: 3× faster rebuilds for reduced downtime
  • SkyHawk Health Management: Actively protects your stored data
  • RV Sensors Included: Maintains performance in multi-bay systems
SAVE 20%
SAVE £16
£79.99
£63.97
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SAVE 19%
SAVE £100
£539.99
£439.97
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  • 12TB Storage Capacity: Ample space for extensive video and data storage
  • 7200rpm Rotation Speed: Quick data access for efficient performance
  • Supports 64 HD Cameras: Ideal for AI video analytics systems
  • 550 TB/yr Workload Rate: Designed for high reliability in demanding tasks
  • Enhanced ImagePerfect AI: Zero dropped frames for smooth recording
SAVE 10%
SAVE £29
£292.49
£263.97
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Why choose a 3.5 inch hard drive?

If you need big storage without big cost, a 3.5 inch hard drive is the ideal upgrade. It fits into most desktop towers and offers large capacity for photos, videos, games and backups, all at a price that’s much lower than smaller form-factor drives.


What you get with a 3.5 hard drive

A standard 3.5 hard drive brings lots of space, so you don’t keep deleting files to make room. It’s great if you’re archiving family memories, building a large game or media library, or simply want one drive to hold everything. Because an Internal hard drive is designed for desktop use, it stays cool, runs steadily and gives you value for money.


What’s in a 3.5 inch HDD (the tech side)

A 3.5 inch HDD uses the classic SATA interface (typically SATA III) and spins at 5,400 RPM or 7,200 RPM. It’s built for high capacity, not ultra-speed, so it’s perfect for storage rather than extremely fast tasks. Most desktop PCs support these drives easily (many laptops do not). Desktops with 3.5? bays are ideal for large-capacity drives.


When to use a 3.5 SATA HDD and when a smaller drive will do

If you spend your time editing huge video files, collecting games or storing years of Photos, then a 3.5 SATA HDD makes sense. It gives you big capacity at lower cost. But if you use a laptop, switch locations often, or just need a fast drive for everyday files, then a smaller format or even an SSD might be more suitable.

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