PC Transporter lets an Apple II run MS-DOS programs three times faster than an IBM PC/XT with an Intel 8088-compatible NEC V20. Running in the IBM mode, PC Transporter provides up to 640K of user RAM and 128K of system RAM. Up to 768K of extra RAM is available for Apple programs. It also accepts an optional 8087-2 Math co-processor chip and a lot of other AE accessories. Compatible with II+, IIe, and IIgs.
Diagnostic software was part of the A3 Appleworks Expander disks.