As one of its daily deals, Woot offers the factory-refurbished Hitachi GST Deskstar 4TB Serial ATA 6Gb/s Internal Hard Drive, model no. HDS5C4040ALE630, for $124.99 plus $5 for shipping. That's $40 under the lowest total price we could find for a new one and tied as the best deal we've seen for a shipped 4TB internal hard drive. It features a 32MB cache. A 60-day Hitachi warranty applies. Deal ends today.