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Internal Adapters USB Serial Adapter

Sonnet Allegro USB2 Serial Network Adapter List Price: $25.99 Price: $23.23 You Save: $2.76 (11%)	StarTech.com CBUSB2 3-Port Ultra Fast USB 2.0 Serial Adapter List Price: $35.99 Price: $30.30 You Save: $5.69 (16%)	StarTech.com PCI220USB 2-Port Ultra Fast USB 2.0 Serial Adapter List Price: $29.99 Price: $10.01 You Save: $19.98 (67%)

External Adapters USB Serial Adapter

Keyspan High Speed USB Serial Adapter ( USA-19HS ) List Price: $30.99 Price: $25.74 You Save: $5.25 (17%)	USB Twin Serial Adapter List Price: $74.99 Price: $62.94 You Save: $12.05 (16%)	High Speed USB Serial Adapter List Price: $48.96 Price: $30.95 You Save: $18.01 (37%)

Other USB Serial Adapter

The following products have not been reviewed by our editors, but are also available from our trusted merchants.

Aten Technologies UC232A USB to DB9 Serial Adapter List Price: $39.95 Price: $21.57 You Save: $18.38 (46%)	Cables To Go - 26478 - USB To 2-Port Serial DB9 Adapter List Price: $90.00 Price: $46.71 You Save: $43.29 (48%)	USB to RS232 (9-pin) Cable with 25-pin Serial Adapter List Price: $7.25