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- Best overall: Western Digital My Book Duo 16TB Desktop RAID Storage
- Best budget: Seagate Backup Plus Slim 2TB Portable External Hard Drive
- Best premium: Western Digital My Book Duo 28TB Desktop RAID Storage
- Best for travel: Seagate Backup Plus Portable 5TB Portable External Hard Drive
- Western Digital My Book Duo models are desktop dual-drive storage with RAID options; Seagate Backup Plus models are single-drive portable or desktop drives.
- Choose Western Digital My Book Duo 16TB Desktop RAID Storage for configurable RAID and a large home or office backup library.
- Choose Seagate Backup Plus Portable 5TB Portable External Hard Drive for a compact, single-drive option that travels more easily.
- Compare the advertised capacity, drive format, connection type, warranty, and included power supply before choosing a Black Friday 2026 listing.
- RAID 1 can keep a mirrored copy of files, but it is not a substitute for a separate backup.
Western Digital My Book Duo and Seagate Backup Plus suit different storage needs: Western Digital My Book Duo uses two drives and RAID options, while Seagate Backup Plus models favor simpler portable or desktop storage. For Black Friday 2026, the right choice depends on whether you value redundancy and expandable capacity or an easier drive to carry.
I’m Marcus Reed, and we researched and compared specs, reviews and owner feedback to make this guide practical for home backups, media libraries and travel. My pick for most people who need a desk-based archive is Western Digital My Book Duo 16TB Desktop RAID Storage. Seagate Backup Plus Portable 5TB Portable External Hard Drive makes more sense when portability matters more than RAID.
How We Picked
- Compared the intended use and form factor, including desktop dual-drive systems, desktop hubs and portable single-drive models.
- Prioritized clearly stated capacities and explained how RAID 1 affects usable space on Western Digital My Book Duo models.
- Reviewed connection types, power requirements and design details that affect everyday setup and portability.
- Used researched specs, reviews and owner feedback to identify the trade-offs buyers should check before ordering.
- Focused on products that address distinct storage needs instead of treating every capacity or model as interchangeable.
Comparison Table
| Product | Best for | Capacity | Drive setup | Connection |
|---|---|---|---|---|
| Western Digital My Book Duo 16TB Desktop RAID Storage | Large desktop backups with RAID choices | 16TB total; about 8TB in RAID 1 | 2 drives; RAID 0, RAID 1 or JBOD | USB-C |
| Western Digital My Book Duo 28TB Desktop RAID Storage | Very large home or studio archives | 28TB total; about 14TB in RAID 1 | 2 drives; RAID 0, RAID 1 or JBOD | USB-C |
| Western Digital My Book Duo 12TB Desktop RAID Storage | Moderate desktop archives with mirroring | 12TB total; about 6TB in RAID 1 | 2 drives; RAID 0, RAID 1 or JBOD | USB-C |
| Seagate Backup Plus Hub 8TB Desktop External Hard Drive | Desk-based storage with accessory charging | 8TB | 1 desktop hard drive | USB 3.0; front USB ports |
| Seagate Backup Plus Hub 10TB Desktop External Hard Drive | A larger single-drive desktop library | 10TB | 1 desktop hard drive | USB 3.0; front USB ports |
| Seagate Backup Plus Portable 5TB Portable External Hard Drive | Portable backups and travel | 5TB | 1 portable hard drive | USB 3.0 |
| Seagate Backup Plus Slim 2TB Portable External Hard Drive | Compact everyday backups | 2TB | 1 portable hard drive | USB 3.0 |
Best Picks Reviewed
#1 · Top pick
Western Digital My Book Duo 16TB Desktop RAID Storage
The Western Digital My Book Duo 16TB Desktop RAID Storage is the best overall choice for home and office archives, with 16TB of advertised capacity across two drives. RAID 1 mirrors data across the drives, while RAID 0 prioritizes combined capacity and performance.
Best for: Large desktop backups with RAID choices
- Capacity
- 16TB total; about 8TB in RAID 1
- Drive setup
- 2 internal drives; RAID 0, RAID 1 or JBOD
- Connection
- USB-C
- Two-drive RAID configuration options
- Large capacity for media libraries
- Desktop enclosure keeps the setup organized
- Requires desk space and external power
Is the Western Digital My Book Duo 16TB Desktop RAID Storage worth buying on Black Friday 2026?
Western Digital My Book Duo 16TB Desktop RAID Storage is worth considering for a desk-based archive that benefits from two drives and RAID choices. The Western Digital My Book Duo 16TB Desktop RAID Storage's 16TB advertised capacity offers room for large collections, while RAID 1 uses half the total capacity for mirroring.
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#2
Western Digital My Book Duo 28TB Desktop RAID Storage
The Western Digital My Book Duo 28TB Desktop RAID Storage is the best high-capacity pick for large media archives, with 28TB of advertised storage across two drives. RAID 1 provides a mirrored copy with about 14TB of capacity available for files.
Best for: Very large home or studio archives
- Capacity
- 28TB total; about 14TB in RAID 1
- Drive setup
- 2 internal drives; RAID 0, RAID 1 or JBOD
- Connection
- USB-C
- Largest listed capacity in this guide
- RAID 1 mirroring option
- Suitable for extensive photo and video collections
- Large desktop footprint and external power are required
Is the Western Digital My Book Duo 28TB Desktop RAID Storage worth buying on Black Friday 2026?
Western Digital My Book Duo 28TB Desktop RAID Storage suits users who need a large central archive and want RAID choices. The Western Digital My Book Duo 28TB Desktop RAID Storage's two-drive design supports RAID 1 mirroring, but mirrored storage leaves about 14TB available from the 28TB total.
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#3
Western Digital My Book Duo 12TB Desktop RAID Storage
The Western Digital My Book Duo 12TB Desktop RAID Storage is the best mid-capacity RAID option for users who want a two-drive desktop system, with 12TB of advertised capacity. RAID 1 uses half the total space to mirror files across the drives.
Best for: Moderate desktop archives with mirroring
- Capacity
- 12TB total; about 6TB in RAID 1
- Drive setup
- 2 internal drives; RAID 0, RAID 1 or JBOD
- Connection
- USB-C
- Two-drive setup at a moderate capacity
- RAID 1 option for a mirrored copy
- Useful for scheduled desktop backups
- Less portable than a bus-powered drive
Is the Western Digital My Book Duo 12TB Desktop RAID Storage worth buying on Black Friday 2026?
Western Digital My Book Duo 12TB Desktop RAID Storage is a sensible fit for a desktop archive that needs RAID without the largest capacity in the range. RAID 1 provides about 6TB for files from the 12TB total.
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#4
Seagate Backup Plus Hub 8TB Desktop External Hard Drive
The Seagate Backup Plus Hub 8TB Desktop External Hard Drive is the best desktop pick for straightforward storage and connected accessories, with 8TB of capacity. The powered enclosure includes front USB ports, making it useful beside a computer or workstation.
Best for: Desk-based storage with accessory charging
- Capacity
- 8TB
- Drive setup
- 1 desktop hard drive
- Connection
- USB 3.0; front USB ports
- Desktop capacity for backups and media
- Front USB ports add convenience
- Simple single-drive setup
- Needs a power adapter and desk space
Is the Seagate Backup Plus Hub 8TB Desktop External Hard Drive worth buying on Black Friday 2026?
Seagate Backup Plus Hub 8TB Desktop External Hard Drive is worth considering for a desk setup that needs 8TB of straightforward storage and accessible front USB ports. The single-drive design is simpler than RAID, but does not provide a mirrored copy.
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#5
Seagate Backup Plus Hub 10TB Desktop External Hard Drive
The Seagate Backup Plus Hub 10TB Desktop External Hard Drive is the best higher-capacity Backup Plus desktop pick for a fixed workstation, with 10TB in a single drive. Front USB ports provide easy access for compatible peripherals and accessories.
Best for: A larger single-drive desktop library
- Capacity
- 10TB
- Drive setup
- 1 desktop hard drive
- Connection
- USB 3.0; front USB ports
- More capacity than the 8TB Hub model
- Front USB ports are within easy reach
- Straightforward desktop storage
- No built-in second drive for RAID mirroring
Is the Seagate Backup Plus Hub 10TB Desktop External Hard Drive worth buying on Black Friday 2026?
Seagate Backup Plus Hub 10TB Desktop External Hard Drive is a good match for a workstation needing a large single-drive archive. The Seagate Backup Plus Hub 10TB Desktop External Hard Drive's 10TB capacity and front USB ports suit a permanent desk setup, while a separate backup drive is still important for data protection.
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#6
Seagate Backup Plus Portable 5TB Portable External Hard Drive
The Seagate Backup Plus Portable 5TB Portable External Hard Drive is the best travel-friendly pick for large single-drive storage, with 5TB in a compact portable format. The portable design is easier to carry than either desktop model in this comparison.
Best for: Portable backups and travel
- Capacity
- 5TB
- Drive setup
- 1 portable hard drive
- Connection
- USB 3.0
- Portable enclosure
- Large capacity for a travel drive
- Simpler to pack than a desktop unit
- Single drive offers no RAID mirroring
Is the Seagate Backup Plus Portable 5TB Portable External Hard Drive worth buying on Black Friday 2026?
Seagate Backup Plus Portable 5TB Portable External Hard Drive is a strong fit for carrying a large file library or making portable backups. The Seagate Backup Plus Portable 5TB Portable External Hard Drive's single-drive format is convenient for travel, but users who need RAID mirroring should choose a desktop dual-drive product instead.
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#7
Seagate Backup Plus Slim 2TB Portable External Hard Drive
The Seagate Backup Plus Slim 2TB Portable External Hard Drive is the best compact pick for everyday document and photo storage, with 2TB in a slim single-drive enclosure. The Seagate Backup Plus Slim 2TB Portable External Hard Drive's portable format favors easy packing over RAID or desktop-scale capacity.
Best for: Compact everyday backups
- Capacity
- 2TB
- Drive setup
- 1 portable hard drive
- Connection
- USB 3.0
- Slim portable design
- Good fit for documents and photos
- Simple single-drive setup
- Less capacity than the 5TB portable option
Is the Seagate Backup Plus Slim 2TB Portable External Hard Drive worth buying on Black Friday 2026?
Seagate Backup Plus Slim 2TB Portable External Hard Drive is worth considering for compact backups of documents, photos and everyday files. The 2TB capacity and slim format are easier to carry than desktop storage, though large media collections need more space.
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What is the difference between WD My Book Duo and Seagate Backup Plus?
Western Digital My Book Duo is a desktop enclosure with two drives and RAID options. Seagate Backup Plus includes single-drive portable and desktop models. Choose My Book Duo for fixed storage and RAID; choose Backup Plus for simpler storage or travel.
RAID 1 mirrors data across both My Book Duo drives, leaving about half the total capacity available. Backup Plus drives do not offer built-in two-drive mirroring.
Which drive is better for backups and file protection?
Western Digital My Book Duo 16TB Desktop RAID Storage supports RAID 1, which keeps a mirrored copy available if one drive fails. A single-drive Seagate Backup Plus has no second drive in the enclosure.
RAID does not protect against deletion, malware, theft or damage to the whole enclosure. Keep another copy on a separate device or off-site. Choose Seagate Backup Plus Portable 5TB Portable External Hard Drive for a simple, movable backup; choose My Book Duo for desktop storage with protection against one drive failure.
How much capacity should you choose?
Seagate Backup Plus Slim 2TB Portable External Hard Drive fits smaller collections; Western Digital My Book Duo 28TB Desktop RAID Storage holds larger archives. Choose capacity for current files and planned growth.
Formatting affects reported usable capacity. RAID 1 reserves half of My Book Duo’s total capacity for mirroring, so the 16TB model provides about 8TB for files in that mode. Confirm capacity in the product title and specifications.
Which Seagate Backup Plus model is best for travel?
Seagate Backup Plus Portable 5TB Portable External Hard Drive offers portable storage with 5TB capacity. Seagate Backup Plus Slim 2TB Portable External Hard Drive is a smaller-capacity option for lighter file needs.
Check that the included cable matches your computer’s ports; use a compatible adapter when needed. Western Digital My Book Duo and Seagate Backup Plus Hub models need external power, making them better suited to a desk than regular travel.
What should you check before buying on Black Friday 2026?
Check the exact model, capacity, connection and power needs. Similar names refer to portable drives, desktop hubs and dual-drive RAID systems. Confirm compatibility, condition, warranty and return terms in the complete listing.
For My Book Duo, verify the supported RAID mode. For Backup Plus Hub, confirm the power adapter is included. Choose a portable model when carrying the drive matters more than desktop capacity.
Buying Guide
Choose desktop or portable storage
Western Digital My Book Duo and Seagate Backup Plus Hub are desktop models. Seagate Backup Plus Portable and Slim models are easier to carry. Match the drive to where backups happen.
Decide whether RAID matters
Western Digital My Book Duo offers two-drive RAID options, including RAID 1 mirroring. Seagate Backup Plus uses a single drive. Keep a separate backup with either option.
Match capacity to your files
Seagate Backup Plus Slim 2TB Portable External Hard Drive suits smaller collections; My Book Duo capacities up to 28TB suit larger archives. RAID 1 leaves about half of My Book Duo’s capacity for files.
Check ports and power
Portable Backup Plus drives connect over USB. Desktop My Book Duo and Backup Plus Hub models need external power. Check connector compatibility and included accessories.
Read the complete listing
Confirm the full product name, capacity, condition, warranty and return policy. Backup Plus Hub is a desktop model, not a portable drive; My Book Duo adds two-drive RAID features.
FAQ
Is WD My Book Duo better than Seagate Backup Plus?
Western Digital My Book Duo is better for desktop storage that needs two drives and RAID options; Seagate Backup Plus is better for straightforward single-drive storage and portable use. Choose based on the need for mirroring, portability and the capacity your files require.
Does WD My Book Duo have RAID 1?
Western Digital My Book Duo supports RAID 1, which mirrors data across its 2 internal drives. Mirroring uses about half the advertised total capacity for file storage. RAID 1 helps with a single drive failure but does not replace a separate backup.
Is Seagate Backup Plus Portable 5TB a good backup drive?
Seagate Backup Plus Portable 5TB Portable External Hard Drive is a good choice for portable single-drive backups with 5TB of advertised capacity. The compact format suits travel and everyday file copies, but the single-drive design does not offer RAID mirroring.
Which Seagate Backup Plus drive is best for travel?
Seagate Backup Plus Portable 5TB Portable External Hard Drive is the best travel choice in this guide for buyers who need more portable capacity. Seagate Backup Plus Slim 2TB Portable External Hard Drive is a compact alternative when 2TB is enough.
Is a Seagate Backup Plus Hub different from a portable drive?
Seagate Backup Plus Hub is a powered desktop external hard drive with front USB ports, while Seagate Backup Plus Portable is designed to be carried and connected as needed. The Hub suits a fixed workstation; the portable model better suits travel.
How much usable space does a 16TB WD My Book Duo provide in RAID 1?
Western Digital My Book Duo 16TB Desktop RAID Storage provides about 8TB for files in RAID 1 because the second half of the total capacity mirrors the first. Formatting and measurement conventions can make the computer’s displayed usable space differ.