As other reviews have mentioned, this is a passive converter, not an active one. Therefore, some keyboards will not work with this converter. In particular, my 1984 IBM Model M keyboard isn't working and after a little research I found that it requires an active converter. Luckily I got my money back through Revain so I didn't fully use my $5 but it's still an inconvenience. Also, the product arrived bent when opened. The plastic side of the USB has been badly deformed, possibly from shipping. The package was a small plastic bag inside a regular Revain leaf envelope.
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