Transcend curries 4K favor with faster SD cards[ Fri, 21 Mar 2014 11:26:05 GMT ] Transcend's Extreme model of UHS-1 Class 3 SD card has read speeds of 95MBps, write speeds of 85MBps, and a maximum capacity of 64GB. (Credit: Transcend) Memory card maker Transcend announced higher-speed SD cards on Friday that are geared for videographers shooting high-resolution 4K video. The Transcend's new SDHC and SDXC cards are graded UHS-1 Class 3 and come in two varieties. The "Extreme" models have read and write speeds of 95MBps and 85MBps, respectively. The non-extreme models have read and write speeds of 95MBps and 60MBps, respectively. The newer UHS-1 (Ultra High Speed) Class 3 specification requires sustained write performance of 30MBps. Related stories Toshiba announces Exceria line of high-speed SD cards Need room for 4,000 photos? Try SanDisk's 128GB SD card Lexar deals out a 600X hand of SDXC memory cards Lexar's flash card reader supports USB 3, SDXC Yes, SD card categorization is a bottomless pit of acronyms. Here are two more: SDHC and SDXC, which govern maximum capacity. SDHC models top out at 32GB capacity, but SDXC can go much, much higher. Transcend's SDXC models reach 128GB, enough for 8 hours of UltraHD video shot at a resolution of 4096x2160, with a 35Mbps bitrate and the H.264 AVC compression standard. The Extreme models top out at 64GB, though. Trandscend's SDXC Extreme models cost $59 for 32GB and $119 for 64GB. The somewhat slower models cost $49 for 64GB and $109 for 128GB. The SD Card Association's attempt to demystify their flash cards' transfer-speed ratings. (Credit: SD Card Association) Related Links:Tight on memory? SanDisk microSD cards hit 128GBTranscend gives Mac Pro a 128GB memory upgrade optionSynology flagship DSM 5.0 NAS operating system now liveGet Password Depot password manager (Win) for freeSound bite: Despite Pono's promise, experts pan HD audio