Serial ATA has taken off as the standard for mass storage; it's only a matter of time before ATAPI devices will start showing up on SATA, allowing a much broader range of transfer rates for DVD-R units.
Serial ATA has had some teething issues, such as getting wide range support, as well as adding features that would distinguish it from Parallel ATA architecture but Serial ATA-II has finally done this.
Serial ATA-II adds speeds of 300MB/s between the host to drive buffer as well as full support for hot plug, which allows for using HDD's as swappable media - no need for rebooting, much like USB.
In our testing, Serial ATA-II running at full speed doesn't offer any great speed advantage over the SATA-150 drives, so until the magnetic storage components are replaced with high speed non-violate memory, we won't see much in terms of speed upgrades with SATA-II at its current form.
Overall the speed of the Western Digital drive isn't impressive as a single drive not in RAID, but the additional features make SATA all the more enticing as the new storage interconnect standard and in a RAID 0 array we've seen SATA-II drives really shine. Western Digital's implementation of SATA-II is good and drive is built to typical high-quality WD standards however unfortunately our performance benchmarks were not as impressive as we imagined they would be.
Molex power connection option
Very well priced (around 44 cents USD per GB at time of publishing)
Good performance but not spectacular
No real advantage over SATA as a single drive
- Current Pricing
The Western Digital 2500JS HDD is for people building a new system with SATA-II support and want a very affordable yet decent drive with plenty of space and is not for people thinking of upgrading from a single SATA to SATA-II drive expecting to see massive jumps in performance.
Rating - 8 out of 10
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- Page 1 [Introduction]
- Page 2 [Specifications]
- Page 3 [Features]
- Page 4 [Benchmarks - Test System Setup and HD Tach]
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