Used, Tested and Working. $45 each, $400 for all remaining 10.

Tested with Unigine Heaven Benchmark 4.0 and runs well with consistent performance.

Base Clock: 1006 MHz
Boost Clock: 1058 MHz
Memory Size: 2 GB
Bus Interface: PCIe 3.0 x16
Power Connectors: 2x 6-pin
Outputs: 2x DVI, 1x HDMI 1.4a, 1x DisplayPort 1.2
Suggested PSU: 550 Watt or greater power supply recommended.