Appearance: UsedFunctionality: Working
Description:============As pictured, an A2091 Hard Drive + RAM controller. Includes just the board – no other accessories are available.
Warranty and Returns:=====================We understand that there may be compatibility issues, space constraints, or it just doesn’t look perfect. This item can be returned within 14-days for ANY reason. However, shipping to and from is not refundable.
Shipping:=========- Other shipping methods are available – contact us for details.- Combined shipping is available for most items – contact us for details.- Local pickup is also available at no cost.
Stock#:J20197.GG#2Details from Amiga Resource:
CompanyCommodore, USADate1991AmigaA2000, A3000, A4000InterfaceZorro IIAutoconfig ID514 / 2,3,10SCSI controller◾Western Digital 33C93◾uses the same DMAC custom chip for DMA transfers as the A3000◾knows the Rigid Disk Block and SCSI Direct protocols◾built in XT IDE (8 bit) hard disk controller - the connectors and LED are not installed but their place is visible on the card◾50 pin internal SCSI header◾DB25 external connector◾a 3.5" hard disk can be mounted on the card◾16 kB autoboot ROM (can be disabled) - autobooting requires at least Kickstart 1.3◾revision 7.0 of the ROM is necessary for 68040 machines◾supports SCSI network sharing◾supported by Linux, NetBSD and OpenBSD◾A-Max II driver (scsi.amhd)memory ◾sixteen DIP sockets accept 0.5, 1 or 2 MB RAM◾supports 256k×4 (44256) chips, 120 ns or faster◾cannot use DMA to transfer data to 32 bit fast RAM◾if Zorro II DMA memory is not available the driver falls back to programmed I/O transfers◾performs extremely slow in the A4000 because of the above mentioned two problems