You can use Unicard Mk3b with Sharp MZ-700 with this adapter. It is possible to connect Unicard directly or with a flat cable.
Adapter supplies +5V power, which is absent on MZ-700 bus edge connector. Power can be supplied by miniUSB connector or short cable from one of the MZ-700 joystick ports.
This adapter is also sold as DIY PCB only.
If you buy this with an Unicard, we will refund the adapter postage, so the postage for adapter will be free. We can do this only after payment, while checking order, sorry for the inconvenience.