The Blackmagic Design Intensity Pro HDMI and Analog Editing PCIe Card is a great choice for your digital and and analoge capturing requirements.

The Blackmagic Design Intensity Pro comes with full support for NTSC, PAL and HD video via HDMI, component, composite or S-Video. The Intensity Pro supports two channels of embedded, RCA or S/PDIF audio at TV-Standard sample rates.

The Blackmagic Design Intensity Pro supports 4:2:2 color sampling for advanced chromakey performance. The card works in Windows and Mac computers, making it the best choice for your editing requirements no matter which operating system you use.

Features
 
High Definition and Standard Definition
The Blackmagic Design Intensity Pro lets you to work with High Definition media while retaining compatibility with Standard Definition Video. The card supports NTSC and PAL video formats.
 
Digital HDMI and Analogue Support
The Blackmagic Design Intensity Pro comes with support for 4:2:2 digital HDMI video. The HDMI port allows you to capture and output stereo audio at television standard 24-bit/48 kHz resolution. Analogue video via component, composite or S-Video is included.
 
Windows or Mac Compatible
The Intensity is fully compatible with systems running Mac and Windows. This lets you leverage the card's features regardless of the operating platform on which you edit.
 
Down-Conversion and Real Time Effects
The Blackmagic Design Intensity Pro lets you downconvert your HD video for re-mastering to Standard Definition at broadcast quality.

For more Info and full specs visit the manufacturer's product page HERE