We do offer an SSHD, or Solid-State Hybrid Drive called FireCuda (in both 2.5" and 3.5" sizes) which is in some ways similar to what you mentioned. Here is a video on using the right drive for the right application if you'd like more information. These drives are rated for more robust workloads than you're going to see in any laptop drive, 24x7 use, write-intensive use cases like writing 90% of the time and reading the other 10% while managing those massive write blocks as efficiently as possible to preserve the quality of video data. However, we recommend going with form factors that can hold 3.5" drives wherever possible, because in addition to the performance concerns, 3.5" drives engineered specifically with surveillance applications in mind (such as Seagate's SkyHawk drives) are going to be the best bet for ensuring great performance and longevity for your hard drives. The form factor issue you mentioned definitely makes sense. The same power usage in a laptop environment would drastically alter laptop battery life. So, as you can see, the 3.5" drives have quite significantly higher power usage, and performance boost in turn.
The average read/write operating power for the 4TB version is 5.0 W, and the average idle power is 2.5 W. The 2TB and 3TB capacities have a startup power of 2.5 W, average read/write operating power of 8.0 W, and 5.4 W average idle power. The 500GB and 1TB versions have an average read/write operating power of 5.3 W, and 4.6 W average idle power. Now, for the 3.5" BarraCuda drives: Capacities 500GB, 1TB, and 4TB have an average startup power of 2.0 A. The 3, 4, and 5 TB capacities have an average startup current of 1.2 A, an average read/write power of 1.9/2.1 W, and an average idle power of 1.1 W. The 2TB capacity has an average read/write power of 1.7/1.8 W and an average idle power 0.5 W. The average read/write power for the 500GB and 1TB capacities is 1.6/1.7 W, and an average idle power of 0.45 W.
Using a couple of our models in various storage capacities for example, just to get a better picture of what this looks like:įor our 2.5" BarraCuda drives: capacities 500GB, 1TB, and 2TB, startup current specs out at 1.0 A. This is because power management is paramount in laptop computers, so 2.5" laptop drives are going to prioritize power conservation over raw performance capabilities. You're correct, the performance will be different in a 2.5" hard drive than you'd see in a 3.5" counterpart, even with otherwise similar specs as far as things like RPM go.
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