Some atari ste have faulty DMA chips, making SD CARD not usuable after write operations. Please, follow thisguide to check it.
Ultrasatan is a hard disk replacement for atari 16bit computers. Device is confirmed to work with ATARI ST/STE/TT - TOS 1.4 or higher recommended. Device uses two sd card slots, where each card is recognised as different ACSI device in chain.
Connection cable NOT INCLUDED - sold separately - You may get it HERE or HERE
Device has been tested with a lot of different models of SD Cards, and should works properly with all SD Cards present on the market. Unfortunately there are lots of fake/bad flash medias (SD Cards/CF Cards/USB keys...) on the market.So we recommend you to care about the SD Card selection and also choose a good provider.To ensure you the best experience with our products and avoid issues with fake/bad SD Cards we have decided to offer you a selection of tested and certified working SD Cards.You can found this SD Cards selection there : HERE
microUSB power supply ( any mobile phone power charger will work)
connects to external ACSI port of Atari 16bit
supports MMC, SD and SDHC cards - tested with cards from 16 MB to 8 GB and works OK on ST