Western Digital has a long and rich history in the storage market, but for a long time it wasn't a player in the consumer solid-state storage space. The company first started to dabble in SSDs with its acquisition of Siliconsystems almost ten years ago, but that was a ticket into the business-focused market only. It wasn't until the company's much more recent and more expensive purchase of SanDisk that WD became truly ready to enter the mainstream SSD fray.Freshly armed with SanDisk's existing client SSD portfolio and the technologies and foundries of the SanDisk-Toshiba joint venture, WD wasted little time in getting SSDs carrying its own brand out the door.