The Storage Specs That Matter
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The Tech Specs That Matter
- Which Specs Deserve Your Respect?
- The Laptop and Desktop Specs That Matter
- The Phone Specs That Matter
- The Tablet Specs That Matter
- The Camera Specs That Matter
Makers of hard drives and NAS drives will throw out lots of esoteric terms (many of which they made up) to describe their products. But there are only a few things you need to pay attention to to ensure you make the right choice.
Storage: Specs That Don't Matter
Storage: Specs That Sometimes Matter
Revolutions per minute (beyond 7200): Many of today’s hard drives don’t specify a number for revolutions per minute, but it still matters. The physics of speed remain the same, and a 10,000-rpm drive remains faster than a 7200-rpm drive, which remains faster than a 5400-rpm drive. But for all intents and purposes, speed is not a huge competitive focus right now.
Among makers of consumer hard drives, Western Digital is the only one with a 10,000-rpm drive, and that model remains a niche product. Most desktop drives--with the exception of performance-oriented drives--have a variable speed that hops between 5400 and 7200 rpm, depending on the task. Portable drives are where you will likely see the most difference, as in that category it’s a big jump between 5400 and 7200 rpm. Even so, you rarely see 7200-rpm external portable drives--and if you do, you’ll pay a premium for one. Related: Portable Hard Drives: A Terabyte in Your Pocket
Storage: Specs That Always Matter
On external drives, look for the fastest connector that your system can support. For PCs, that includes eSATA and USB 3.0--but only the latter can work without a power adapter. We recommend USB 3.0; even if you don’t have USB 3.0 on your computer today, a USB 3.0 drive will work at USB 2.0 speeds when connected to a USB 2.0 port. Chances are good that you will have USB 3.0 ports on your next machine, so that drive should last you a long time. Related: USB 3.0 Hard Drives: Full Speed Ahead
The Tech Specs That Matter
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