The z80ctrl is a system controller that enables running different 8-bit systems. I am pleased with this module, but I have to warn potential buyers that this product is not for beginners. I have successfully assembled and running the module, but it is a bit too complicated for me. The product is well documented but aimed more toward experienced users.
This card adds a lot of flexibility to the RC2014 system and can save you buying a clock card, a card for storage, and a serial interface card--all while given you more power than those cards alone would offer. Great support on the forum and a path to some interesting upgrades over time.
Fast shipping and as described. Only hint I would offer is insert the left sound chip first. One of the pins broke on one of mine (an issue with the IC and me, not the kit), but left is used for mono output which is most likely to be used anyway. I had a spare and am in business.
I am using this card in conjunction with an RC2014 Pro backplane, a 64K memory card and a CPU 2 card. The kit was really easy to assemble and worked the first time I tried it. I was able to create some disk images by copying the original disk images and renaming them under Ubuntu Linux, and then doing an ERA *.* on those disks under CP/M. I then used R.COM to move files from my Linux box to the CP/M disks I just prepared. The whole process was fairly simple, but did require shuffling the Micro SD card between my Linux box and the Z80ctrl. One improvement would be to include a working XMODEM.COM so the Micro SD card did not need to be removed.