The Need for Data Storage: Comparing External Disk Drives
By Frank Fota, LTC, USA (Ret.), VFW Post 3103 Auxiliary
As digital content continues to grow in size and quality, the need for reliable data storage has never been greater. Photos, music, and videos now occupy significantly more space than they did just a decade ago, driven by advances in resolution, file formats, and consumer demand for high-quality media.
|
Media Type |
Typical File Size (2015) |
Typical File Size (2025) |
Main Growth Drivers |
|
Photos |
2–4 MB |
6–15 MB+ |
Higher resolution, RAW formats |
|
Digital Music |
3–10 MB (MP3) |
3–50 MB+ (Hi-Res/FLAC) |
Lossless, hi-res audio adoption |
|
Videos |
1–2 GB/hour (HD) |
7–15 GB+/hour (4K/8K) |
4K/8K, HDR, higher frame rates |
With this rapid increase in data generation, consumers need dependable storage solutions for both primary files and backups. External disk drives remain essential for expanding storage, safeguarding important data, and transferring large files. Choosing the right drive can simplify data management and enhance security, especially for novice users.
Types of External Disk Drives
Hard Disk Drives (HDDs)
Solid State Drives (SSDs)
HDDs are best for affordable, high-capacity backups. SSDs are ideal for those who prioritize speed, portability, and durability—especially for travel or frequent use.
Top External Drives Under $150
|
Drive |
Type |
Capacity Options |
Typical Price |
Max Speed |
Warranty |
Portability |
Notable Features |
|
Seagate Expansion |
HDD |
2TB–5TB+ |
$70–$100 |
~120 MB/s |
1 yr |
Low |
High capacity, low cost |
|
WD My Passport |
HDD |
1TB–5TB |
$60–$125 |
~120 MB/s |
3 yrs |
High |
Compact, reliable |
|
WD Elements Portable |
HDD |
1TB–4TB |
$65–$100 |
~120 MB/s |
2 yrs |
High |
Plug-and-play, great value |
|
Samsung T7 |
SSD |
500GB–2TB |
$100–$150 |
~1,050 MB/s |
3 yrs |
Very High |
Fast, secure, rugged |
|
Kingston XS1000 |
SSD |
1TB–2TB |
$75–$120 |
~1,000 MB/s |
3 yrs |
Very High |
Ultra-compact, fast |
|
SanDisk Extreme Portable |
SSD |
1TB–2TB |
$130–$220 |
~1,050 MB/s |
3 yrs |
High |
Rugged, water/dust resistant |
Best for Capacity and Value
Best for Speed and Portability
What to Consider When Choosing
Recommendations by Need
Conclusion
For those seeking the best external disk drives under $150, your choice depends on your priorities:
Regardless of your choice, regularly back up your essential data and consider your specific needs—whether it’s archiving family memories, traveling, or simply expanding your computer’s storage. Today’s external drives make reliable, affordable storage accessible for everyone.
Sources
1. CNET, The Best External Hard Drives: Our Top Storage Picks for 2025, Apr 9, 2025, David Carnoy, https://www.cnet.com/tech/computing/best-external-hard-drive-ssd/
2. PC Magazine, The Best External Hard Drives for 2025, May 12, 2025, Tony Hoffman,
https://www.pcmag.com/picks/the-best-external-hard-drives
3. TechRadar, Best External Hard Drive of 2025: Expert Picks Based on Real-world Testing, Apr 15, 2025, John Loeffler, https://www.techradar.com/news/best-external-desktop-and-portable-hard-disk-drives
4. The New York Times, Wirecutter, The Best External Hard Drive, Jun 3, 2024, Joel Santo Domingo, https://www.nytimes.com/wirecutter/reviews/best-external-hard-drives/
5. Wired, The Best External Hard Drives, Feb 18, 2025, Scott Gilbertson,
https://www.wired.com/story/best-portable-external-storage-drives/