CES — As if releasing one new Raptor weren't enough, Western Digital has unveiled a second addition to its 10K-RPM Serial ATA family. The new Raptor X is mechanically identical to the recently announced WD1500, but does the enterprise product one better by providing a window to the drive's internals. Literally. Like the WD1500, the Raptor X offers 150GB of total capacity, 16MB of cache, and support for Native Command Queuing. The drive is expected to be available in a couple of months with a $350 price tag. That's $50 more than the otherwise identical WD1500, a premium serious case modding enthusiasts may be eager to pay.