This is one of the Russian Sinclair ZX Spectrum clones. This model was produced in republic of Moldova at the SCHETMASH factory. As far as I know there were several versions of this computer. 



Features: 
Type of processor – Z80 
Frequency – 3.5 MHz 
RAM – 48 kByte 
ROM – 16 kByte 
Number of colors – 8 
Resolution – 256*192 
Power supply – 220+10/-15 VAC 
Length – 24.0 cm 
Width – 16.5 cm 
Height – 3.5 cm