Tripp Lite 4 Port USB to Serial Adapter, RS-422/RS-485, FTDI with COM Retention
Older serial gear still runs production lines, security hardware, and test benches. This adapter ties those devices into a standard USB port on your workstation or terminal. It draws power directly from the bus, so you do not have to fight for an open wall socket.
Price as the listing last showed it. Listings move, so the figure on the page you land on is the one that counts at checkout.
- 4-Port USB to Serial converter: this USB to Serial converter turns your computer's USB port into four DB9 ports capable of connecting RS-422 and RS-485 Serial devices, such as modems, handheld scanners and GPS systems. No external power source is needed.
- Independent dip switches: the u208-004-ind’s Serial ports can be set to automatically detect an RS-422 or rs-485 device by adjusting their dip switch settings.
- Compatibility: the wall-mountable USB to Serial converter USB-powered, so no bulky or obtrusive external power supply is required. System requirements include Windows XP or later, Mac OS X 10.4 or later, Linux 2.6.31 or later or a computer with an available USB port. Perfect for activating surveillance cameras, access panels and other security equipment.
How this one is built
Serial device support
The converter talks directly to legacy serial peripherals. It links hardware like modems, barcode scanners, GPS units, and security access panels to modern computers without needing dedicated expansion cards.
Individual dip switches
Each serial connection features its own switch bank for configuration. You set the switches on the unit to assign the interface mode each attached tool requires, letting mixed hardware run side by side.
Bus power supply
Power comes straight through the host USB connection. That leaves the space under your bench free of bulky wall transformers, keeping the run clean when you attach it to tight service carts or desks.
Wall mount design
Integrated mounting ears let you fasten the housing straight to a backboard, utility wall, or inside an equipment cabinet. Screwing it down keeps cable tension from dragging the adapter onto the floor.
On the nameplate
These are the figures published for this unit. Where a number is missing here it was not printed on the listing, and we would rather leave the row out than fill it with a guess.
| Connector | USB Type B |
|---|---|
| Color | Black |
| Weight | 9.92 ounces |
| Warranty | 2-year limited warranty |
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