The following is an MMC5 development board for the NES. It allows one PRG EPROM, one CHR EPROM, as well as SRAM and WRAM. Its retail equivalent is the NES-ETROM. There are currently no known photos of this board.

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NES-ETEPROM-01
ID NES-ETEPROM-01
Type EPROM cartridge
Date 1989
Text ©1989 Nintendo, NES-ETEPROM-01
System NES