Atari STE TOS v1.62 supplied as a 2x 28-pin EPROM kit.
For the ATARI STE / MEGA STE only. This kit is not compatible with the Atari ST/STF/STFM models.
If you're computer already has a TOS version with 28-pins, this is a simple swap and no soldering is required.
Hardware upgrade fitted at the buyer's risk - any questions, please ask before purchase and before fitting.