StarTech.com 3m USB to Null Modem Serial Adapter Cable - COM Retention - Interchangeable DB9 Screws - USB to RS232 - Serial - US

This adapter allows you to connect RS-232 serial devices to computers via a USB-A port. It features a male DB9 connector and a 3-meter length, facilitating installation on desktop or laptop computers. Its design includes interchangeable thumbscrews to ensure secure attachment to peripherals.

The construction uses durable TPE material and offers Level 4 ESD protection, withstanding 15 kV air and 8 kV contact. Internal shielding reduces electromagnetic interference. It includes LED indicators to monitor data activity and USB connection status, and features COM retention functionality to maintain port assignment after disconnections.

• 3-meter length with USB-A and male DB9 connectors
• Level 4 ESD protection (15 kV air / 8 kV contact)
• Durable TPE housing with interference shielding
• Interchangeable thumbscrews for secure attachment
• LED indicators for transmit, receive, and USB status
• COM retention feature for port stability