Tripp-Lite Keyspan USA-19HS
Excellent quality USB-RS232 (serial) adapter (AP and SB recommended).
Selling, as this is a backup.
Drivers here:
https://www.tripplite.com/high-speed...yspan~USA19HS/
$60 shipped.
Tripp-Lite Keyspan USA-49WG (four (4) port)
Drivers here:
https://www.tripplite.com/keyspan-hi...er-hub~USA49WG
I believe this is the V1 version for earlier versions of Windows eg Win7.
$70 shipped.