TigerDirect offers the OCZ RevoDrive 220GB X2 PCI-Express x4 SSD Solid State Drive, model no. OCZSSDPX-1RVDX0220, for $379.97. With free shipping, that’s $1.73/GB and the lowest total price we could find by $97. This bootable PCIe solid state hard drive features up to a 730MB/s read time, up to 690MB/s write time, and more.