Super 1750 Clone

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The Super 1750 Clone was a RAM expansion unit designed as a tiny, but compatible, third-party replacement for Commodore's then out-of-production CBM 1750 REU. Manufactured by Chip Level Designs, the Super 1750 Clone was sold by Software Support International.

It worked on the C128 and the C64. The C64 did not require a heavy-duty power supply to use it, as was necessary with Commodore's original REUs.
It used the same MOS 8726 REC (RAM Expansion Controller) chip as the Commodore REUs. Rather than 16 chips of 256×1-bit DRAMs, it used four 256×4-bit DRAMs. The DRAMs were in a ZIP package.
The plastic case was the same as used by the Epyx FastLoad cartridge.