DTECH
DTECH USB to RS422 RS485 Serial Port Converter Adapter Cable
Bottom line: The DTECH USB to RS422 RS485 Serial Port Converter Adapter Cable: FTDI FT232 chipset with automatic I/O conversion circuitry; main trade-off: 1.5 ft cable is short for reaching distant panels.
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Pros & Cons
Pros
- ✓ FTDI FT232 chipset with automatic I/O conversion circuitry
- ✓ 600W surge and 15KV ESD protection on signal pins
- ✓ Handles both RS485 half duplex and RS422 full duplex
- ✓ Powered by USB, so no external power supply is needed
- ✓ LED indicators help you troubleshoot link problems
Cons
- ✗ 1.5 ft cable is short for reaching distant panels
- ✗ RS485 mode is half duplex only
- ✗ Listing doesn't state supported baud rates
- ✗ Listing describes ESD protection, not full galvanic isolation
Manufacturer description
The DTECH USB to RS422 RS485 Serial Port Converter Adapter Cable connects an RS485 or RS422 device straight to a USB port on your laptop or desktop. It is built for industrial and lab setups, including control equipment, laboratory testing gear and measuring instruments, where a direct serial link is still the standard. Inside is an FTDI FT232 chipset with automatic I/O conversion circuitry. The adapter runs RS485 in half duplex and RS422 in full duplex, so one cable works with both kinds of field device. It doesn't use any extra IRQ, DMA or memory resources, so you avoid the COM port…
SpecPicks Verdict
SpecPicks scored DTECH USB to RS422 RS485 Serial Port Converter Adapter Cable using a rating × review-volume × price-fit model applied to published specs and reviews across the storage adapters category. DTECH's storage adapters lineup sits within the broader category mid-tier; price and specs are the deciding factors over brand loyalty here. Judge it on the specification table and the price rather than on sentiment: check the figures that decide your use case, then put it side-by-side with two or three close alternatives in the Compare tool before clicking through.
Common buyer scenarios for storage adapters of this kind: matching it to an existing build, replacing a failing part, or upgrading from a previous-generation equivalent. Check the spec table below against your current setup — particularly socket / form-factor / power-rating fields — and confirm compatibility on the retailer's listing before purchase. Prices and stock are set by the retailer and may have moved since this page was last updated.
Frequently Asked Questions
Does this adapter support both RS485 and RS422?
Yes. It runs RS485 in half duplex and RS422 in full duplex, so one adapter covers both serial standards.
What chipset does the DTECH USB to RS485 adapter use?
It uses the FTDI FT232 chipset together with automatic I/O conversion circuitry.
Will it work with Windows 11 and Mac?
The manufacturer lists support for Windows 11, 10, 8, 7 and XP as well as Mac. Check FTDI's driver page for the latest driver for your OS version.
Does the adapter need an external power supply?
No. It is plug-and-play and draws power from the USB port. No separate power adapter is required.
How does it protect connected industrial equipment?
The signal pins have 600W surge protection and 15KV ESD protection, which helps shield control equipment from electrical damage. LED indicators help with troubleshooting.
Key Features
- USB to RS485/RS422 converter It easily lets you connect RS485 or RS422 device directly to your Laptop PC computer USB port (built with LED Troubleshooting Indicators)
- USB to RS485 cable adapter is Ideal for industrial environment -provides 600w surge protection and 15KV ESD isolated protection on signal pins to protect costly and often sensitive control equipment against electrical damage
- rs485 serial to usb converter is with high performance quality processor chip (FTDI-chipset FT232) and I/O auto conversion circuitry which makes RS 485 to USB convertor one of the most reliable dongle on the market
- 1.5 ft serial RS-422 RS-485 to USB adapter cable supports windows 11 10 8 7, Mac and more; plug-and-play, No power supply needed
- There are no IRQ and COM port conflicts, since the port do not require any additional IRQ, DMA, memory as resources on the system; RS485 for Half duplex and RS422 for Full duplex communication
Full Specifications
| Brand | DTECH |
|---|---|
| Color | Black |
| Finish | Matte |
| Unit Count | 1 Count |
| Connectivity | USB |
| Model Number | DT-5119 |
| Compatibility | PC, Mac |
| Input Voltage | 5 volts |
| Warranty Type | Limited |
| Connector Type | USB to RS485 |
| Item Type Name | RS485 converter |
| Item Dimensions | 8.07 x 3.94 x 2.01 inches |
| Mfr Part Number | DT-5119 |
| Number of Items | 1 |
| Number of Ports | 3 |
| Power Plug Type | No Plug |
| Compatible Devices | RS485-compatible devices such as industrial control units, building automation systems, card readers, PLCs, and CNC machines |
| Warranty Description | 365 days from purchase date |
| Item dimensions L x W x H | 8.07 x 3.94 x 2.01 inches |
| Specific Uses For Product | CNC, PC, PLC |
| Full listing title | DTECH USB to RS422 RS485 Serial Port Converter Adapter Cable with FTDI Chip Supports Windows 11 10 8 7 XP Mac -1.5 Feet |
Ready to buy?
DTECH USB to RS422 RS485 Serial Port Converter Adapter Cable with FTDI Chip Supports Windows 11 10 8 7 XP Mac -1.5 Feet is listed on Amazon. Price, availability, shipping and returns are set by Amazon and its sellers — check the listing for current terms. SpecPicks earns a small commission on qualifying purchases — thank you for supporting independent review work.
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