This is Okyo's SE-300PCIE DIgital Audio Board released in April of 2011 - new in the Japanese retail package. 

Specifications:

• PCI Express
• 7.1 Channel
• 120 dB
• 24bit/192kHs output
• 24bit/192KHz input sampling
• Miniplug port
• RCA port
• Optic Fiber output
• Parallel digital output