Official Japanese Sega Saturn 4MB RAM expansion cartridge (HSS-0167).
Boxed with original outer box and inner tray.
Manual has been checked for writing, stamps, stickers, and damage etc (if present).
Cartridge tested and working on Sega Saturn hardware.
Free tracked shipping.
Well packed.
Essential accessory for many late‑era Saturn titles, especially 2D fighters and arcade‑style ports that require extra RAM.
Boxed official Sega cart is much harder to find than loose units and is preferred by serious Saturn collectors.
Ideal upgrade for anyone building a Japanese Saturn library focused on arcade‑accurate titles.
