Blackmagic Design has announced the release of DeckLink 4.1, the latest software update for it’s DeckLink family of uncompressed QuickTime video capture cards. Version 4.1 includes keying support for all standard definition DeckLink modes, a new Disk Speed Test utility, and improvements for DeckLink HD cards. This update also adds support for real world video speed tests with disk arrays with the new included Blackmagic Disk Speed Test application.