They're touting twelve SATA connections for up to 9TB of storage, 20 USB 2.0 channels, four gig Ethernet ports, four or eight monitors powered by up to four PCI-E cards, and Dual Socket Direct Connect (DSDC) Architecture designed for optimized performance (or so they tell us).
Most of the romantics sending e-cards didn't plan on spending all that time filling out e-mail addresses and typing a message without expecting something in return.