USB-RS485-PCBA
$10.90
USB-RS485-PCBA is a assembled PCB that functions as a converter to help USB host to communicate with RD485 devices, allowing reliable long-distance communications. It is widely used in indudtrial control, automation,management systems, and other applications.
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Layer Counts | 2L |
Base Material | FR4 |
Board Thickness(mm) | 1.2mm |
Max board size(mm) | 570*1200mm |
PCB size tolerance | ±0.2mm |
Min. Hole Size | 0.15mm |
Min. Line Width | 0.4mil |
Copper Weight | 1oz |
Surface Finish | ENIG |
Certificate | UL, IPC-6012, RoHS, ISO 9001, ISO14001, REACH |

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Questions & Answers
1. Can I use this USB-RS485 PCBA directly with my computer?
Yes. The USB interface on the PCB is plug-and-play and compatible with most Windows or macOS systems.
2. How many RS485 devices can I connect to one UCB PCBA?
As per RS485 specification, you can connect up to 32 devices to 1 USB-RS485 PCBA on a single. If the connected devices use low-power transceivers, you can connect up to 128 or even 256 devices.
3. What is the maximum communication distance this PCB supports?
At low data rates, the communication distance can reach up to 1200 meters. While at higher data rates, the distance decreases to about 100-500 meters, especially for most industrial use cases.
4. Can I use this USB-RD485-PCBA in outdoor or high-interference environments?
It depends on the concrete PCB designs. If the PCB is designed with a waterproof and dustproof enclosure, it is feasible in outdoor environments, and if it has optical isolation, ESD protection, and surge suppression, it can handle high-interference environments.
5. Do you provide testing and inspection reports?
Yes, we can provide QC reports, functional test reports, AOI or X-ray inspection if needed. You can request these during the quotation or order process.
6. Can I get a sample before placing a bulk order?
Yes, we can provide samples for testing before bulk production.