How much does this cost to the nearest dollar?

Sonnet Presto Ethernet 2-Port PCIe Card
Adds 10GbE Connectivity to Mac Pro Towers, Windows PCs, and Linux Servers—Powerfully simple way to add high-performance 10GbE connectivity to your computer with PCIe slots Optimized for Thunderbolt—Ideal for use in Sonnet's Echo Express and xMac Thunderbolt-to-PCIe card expansion systems Cost Effective—Connects to 10GbE infrastructure via inexpensive CAT-6 or CAT-6A cables at distances up to 55 or 100 meters, respectively Simple Setup—Low-profile x8 PCI Express card installs into an available slot, and after a simple driver installation, configures through OS X Network control panel or Windows Device Manager Supports Transparent Failover—Keeps your computer connected in case a single cable

Price is $250.00

Price: $249.99