Been using the FreddyV setup with my Chinese CH375 card for a few weeks.
Using an IBM Model 30 PS/2 with the NEC V30 CPU upgrade.
ISA>USB - CH375 / FreddyV Drivers
Write Speed : 240.98 KB/s
Read Speed : 282.49 KB/s
8k Random, 70% read : 12.7 IOPS
Sector Random read : 21.2 IOPS
Compared to
PS2XT2SD by CallinElvis
Write Speed : 138.33 KB/s
Read Speed : 248.69 KB/s
8k Random, 70% read : 7.2 IOPS
Sector Random read : 9.7 IOPS
CheckIt on PS2XT2SD
283.0K/Seconds - Determine Transfer Speed (C: 130K blocks)
1.5ms , 1.5ms - Determine Average and Track Seek Times
My hard drive was dead dead.. platters scraped to hell. I have no idea what the normal speeds of the factory 20mb ESDI drive is to compare to.
Thus why I got the PS2XT2SD which in of itself has worked great too.
No idea even what the theoretical top speed of the ESDI controller on this Model 30 even is. I'd like to think the PS2XT2SD IS maxing it out.
I would really love to get a hold of A good CH375 card where it has A working bootable ROM chip on it since the China ones are missing some hardware for that to work properly. ( odd they have the socket added for something that can't work )
Btw, this was the slot cover A friend made for me for my China CH375 card.
https://www.thingiverse.com/thing:6204804
I search CH375 and found nothing on Thingiverse. Then after all was said and done, found that "ISA USB" brought up results! Ooops..
But whatever... I like it and it worked well for me 😀