3TB 3.5 SATA HDD, Hard Drive 5600 - 7200 RPM Storage for Desktop CCTV DVR
The 3TB 3.5" SATA Internal Hard Drive delivers high-capacity bulk storage at an affordable price - ideal for desktop PCs, media servers, home NAS units, and CCTV DVR systems that need reliable, long-term storage. At 3TB, you have serious headroom for games, photos, video files, and documents without filling up quickly.
Connecting over the standard SATA III interface, this 3.5" drive is directly compatible with virtually every desktop motherboard sold in the last 15 years - no adapters needed. For most desktop users, the ideal setup is an SSD as your Windows drive paired with an HDD like this for bulk storage at a much lower cost per GB.
This drive has been inspected, tested, and verified to meet our performance standards before dispatch. All refurbished drives are securely data-wiped before sale. Backed by a 12-month warranty.
Technical Specifications
| Storage Capacity | 3TB |
|---|---|
| Drive Type | HDD (Hard Disk Drive) |
| Form Factor | 3.5" |
| Interface | SATA |
| Interface Speed | 6 Gb/s |
| Speed | 5600 - 7200 RPM |
| Condition | Used |
| Warranty | 12 Months Warranty (Refurbished) |
What Can You Store on
3TB gives you meaningful, everyday storage capacity. Here's a practical guide:
- Windows 11 installation (~20GB) + all system updates and apps
- Approx. 768K+ photos (at 4MB average smartphone quality)
- Around 1536 hours of Full HD (1080p) video footage
- Approximately 614400 songs in MP3 format
- 80+ typical PC games alongside your operating system
Why Choose an HDD for Bulk Storage?
For large-capacity secondary storage, HDDs remain the most cost-effective option. While SSDs are faster for your operating system and frequently accessed files, an HDD delivers far more gigabytes per pound for archives, media libraries, and cold storage. The ideal setup for most desktop users is an SSD for Windows, paired with this HDD for bulk files.
Use this drive as a secondary storage drive alongside an SSD as your primary OS drive. Your system will boot fast from the SSD while the HDD handles your large file storage at a much lower cost per GB. See our SSD range for compatible primary drives.
Compatibility - Which Systems Does This Fit?
The 3.5" SATA form factor is the standard for desktop and server storage:
- Desktop PCs - Any ATX, Micro-ATX or Mini-ITX tower with a 3.5" SATA drive bay
- Windows 10 / 11 - Plug and play, no drivers required
- Linux - Works out of the box with all major distributions
- macOS - Compatible, but requires reformatting to APFS or HFS+ after installation
- NAS enclosures - Home NAS units (Synology, QNAP) that accept 3.5" SATA drives
- CCTV DVR systems - Most CCTV digital video recorders that use 3.5" SATA storage
- USB enclosures - 3.5" SATA-to-USB hard drive enclosures for external use
Not compatible with laptops (which use 2.5" drives) or M.2 slots.
Warranty & Support
- 12 Month Warranty - Full hardware coverage from date of purchase
- 60 Day Money-Back Guarantee - 100% refund if not satisfied, no questions asked
- Free Returns - 30 days free return shipping if defective
- Secure Data Sanitisation - All refurbished drives certified data-wiped before dispatch
- Lifetime Technical Support - Expert help whenever you need it
About Doctor Memory
Doctor Memory is the UK's specialist in quality storage and memory upgrades. Based in Manchester, we supply SSDs, HDDs, RAM, and refurbished hardware to consumers, businesses, and IT professionals across the UK. All products are tested before dispatch, backed by a warranty, and covered by our 60-day money-back guarantee.
- Fast UK dispatch - most orders sent same day
- Expert technical support - Mon-Fri, 9am-5pm GMT
- Environmentally responsible refurbishment practices
- Form Factor:
- 3.5"
- Interface:
- SATA
- Speed:
- 5600 - 7200 RPM
- Storage Capacity:
- 3TB
- Condition:
- Used
- Warranty:
- 12 Months Warranty (Refurbished)
- Interface Speed:
- 6 Gb/s
- Drive Type:
- HDD (Hard Disk Drive)
