Slot-otter

Ivo Filot mail

OSHWA UID

NL000046 Project Website

Certification Date

October 17, 2026

Country

Netherlands

Slot-otter is an 8-bit ISA expansion card that provides SD-card storage for vintage DOS PCs. Its CPLD-based interface and OTTERSD driver expose FAT16 or FAT32 storage as a DOS drive letter, allowing standard commands, applications and games to access files.

Version

1.1.0

Licenses
Hardware
CERN-OHL-S-2.0
Software
GPL-3.0-or-later
Documentation
CC BY-SA
View Documentation

Certification mark

The OSHW Certification Mark shows the project's unique certification ID and makes it easy for users to quickly find this page along with the project's details. This mark can be used throughout the project's design, documentation, and promotional material.

For more details, take a look at the Certification Mark Usage Guide.


Project Type
Electronics
Keywords
retrocomputing, vintage computing, ISA, 8-bit ISA, MS-DOS, PC-DOS, SD card, FAT16, FAT32, IBM PC compatible