When I buy korvet computer together I receive this card. As I understand this is card to connect korvet computers to PC network (in case of many diskless korvet connects to main PC via network). Right now have’t idea to connect it in my home, because I have sd card adapter for korvet, but may be later I will try. Links Discussion about this card in ZX-PK, in russian Wiki page about this at fandom (in russian) ...
Korvet 8010 have not fdd option. Actually several chips was on soldered on the motherboard. (Actually motherboards are the same!). In this case computer may be loaderd from network or using sdcard (modern additional, not exists at 1990). Here is successfull try to create sdcard adapter, connects on left connector and allow booting CP/M from sdcard Programming For Atmega32 fuses should be H: D1, L: E4. Set only once, no change in next programming cycle. ...
Overview Long time I think about korvet. I remember 8020 was in MAN computer room. This computer was not very popular and used rare. Some time ago I seen modern pcb to build korvet, but order original 8010 in badly condition for repair. But it works. I don’t decide upgrade it to 8020, or just use extrom card. Also need to find PSU for this computer, but I think it will not a big problem. ...