Matrox CompressHD Professional Accelerator Card with Matrox MAX, for Mac & Windows Faster than realtime creation of H.264 files, for resolutions ranging from iPod to HD, at bitrates up to 50 Mbps using Matrox MAX technology Works in systems with or without a video I/O device to enhance your delivery workflow Extends the life of your current system investment, giving you the power you need to deliver today's premium H.264 formats faster than ever Low profile, half-length PCIe x1 card Works in systems with Mac OS X Leopard 10.5.6 or higher, Windows XP (32-bit) and Windows Vista (32- and 64-bit)