Manufacturer ... MicroSolutions
Model .......... CompatiCard IV
FDC chip ....... PC8477AV (1991)
Class .......... ISA
Floppy ......... TEAC FD-55GFR

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TESTFDC 1.18 / Mar 07 2012
Copyright 2007-2012 Dave Dunfield - All rights reserved.
BIOS reports drive A: as 1.2M HD, 80-track.
Testing as: 1.2M HD, 80-track

Insert high density media - Press ENTER or ESC to skip:
500k Single-Density: Format Write Verify Ok 
500k Double-Density: Format Write Verify Ok
500k Double/128byte: Format Write Verify Ok

Report on FDC capabilities, issued 28/05/2019 15:51:07:

Single-Density at 250 kbps ............................ Not tested
Single-Density at 300 kbps ............................ Not tested
Single-Density at 500 kbps ......................... Passed

Double-Density at 250 kbps ............................ Not tested
Double-Density at 300 kbps ............................ Not tested
Double-Density at 500 kbps ......................... Passed

Double-Density at 250 kbps / 128 byte sectors ......... Not tested
Double-Density at 300 kbps / 128 byte sectors ......... Not tested
Double-Density at 500 kbps / 128 byte sectors ...... Passed

EOF