The Specification - Promise Ultra 66 - Ultra ATA66 Controller

ultra33The family of carbon aero wheels is further enhanced with the 33 mm profile. Each component of this wheel has been optimized in the wind tunnel in orderIn the second half of 1997 EIDE’s 16.6 MBps limit was doubled to 33 MBps by the new Ultra ATA (also referred to as ATA-33 or Ultra DMA mode 2 protocol).