I bought this IIGS on eBay. I noticed some interesting connections on the picture of the back of it. There was no description of what was inside. It had the TransWarpGS and a RamKeeper card. Best find I ever had. The hardrives depicted on the screen are actually partitions on my MicroDrive Turbo from ReactiveMicro. It’s a CF Card on a circuit card which can be placed in almost any slot. Very fast even without the TransWarpGS.
TransWarpGS on my IIGS Rom 01 TransWarp MicroDrive Turbo