Buy.com offers the SanDisk 128GB 2.5″ Serial ATA 6Gb/s Internal SSD, model no. SDSSDP-128G-G25, for $89.99 with free shipping ($0.70/GB). That’s the lowest total price we could find by $19. It features read speeds of up to 490MB/s and write speeds of up to 390MB/s.