# Correction: part #77000454 = 8r 920

**URL:** <https://forums.digi.com/t/correction-part-77000454-8r-920/7558>\
**Category:** USB Devices\
**Created:** [August 13, 2006, 5:33am UTC](https://forums.digi.com/t/correction-part-77000454-8r-920/7558 "2006-08-13T05:33:51Z")\
**Posts on this page:** 2\
**Page:** 1

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**Author:** ![system](https://us1.discourse-cdn.com/flex016/uploads/digi/original/1X/11da31a6a1fbcd03ef21d3f785c317c824009ae2.png) [@system](https://forums.digi.com/u/system)\
**Post date:** [August 13, 2006, 5:33am UTC](https://forums.digi.com/t/correction-part-77000454-8r-920/7558/1 "2006-08-13T05:33:51Z")

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At least according to the guy I bought it from. It is definitely a 422 though (and I have only 232 devices.)

I downloaded the “Universal DOS something-or-other” software (only one available.) It is the same thing that is on the CD. Doesn’t do anything. Loads “Phar Lap” DOS extender (!) and complains that “PCI-BIOS is NOT installed.”

I guess it doesn’t matter. The driver is definitely working. I can see all of the serial ports and they initialize as expected (they just never report anything.)

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**Author:** ![userid0](https://avatars.discourse-cdn.com/v4/letter/u/f6c823/32.png) [@userid0](https://forums.digi.com/u/userid0)\
**Post date:** [August 14, 2006, 12:24pm UTC](https://forums.digi.com/t/correction-part-77000454-8r-920/7558/2 "2006-08-14T12:24:59Z")

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Since, this is a brand new adatper, you may want to consider exchanging it for an RS232 adapter, as there is a 30 day return policy.