A straightforward serial cable for personal computers, designed to link USB ports with RS-232 DB9 equipment for configuration and diagnostics. Confidence for network engineers and hobbyists who need a fuss-free connection to routers, switches, telescopes and lab instruments. Is the UGREEN USB to RS232 DB9 Converter Cable the simplest bridge between legacy serial hardware and modern machines?
⚡ At a Glance
- • Connection Quality: Stable RS-232 link with a 1Mbps data transfer rate, backed by tinned copper conductor and triple shielding
- • Best for: Network engineers, lab technicians and hobbyists configuring routers, switches, telescopes and assorted serial peripherals
- • Not ideal for: Setups needing runs longer than 1m or a different serial connector type
Equipped with a PL2303 chipset for USB-to-RS232 conversion and a stated 1Mbps transfer rate. Tinned copper conductors and triple shielding help maintain signal integrity while drawing power from the USB port.
Fast, dependable connections – with PL2303 USB-to-serial chipset
PL2303 chipset handles the protocol bridge between USB Type-A and the 9-pin RS-232 interface, enabling the cable's 1Mbps data transfer specification. Driver support is built around that chipset.
Rapid serial sessions for device configuration and firmware updates, reducing wait time during command transfers.
Interference-resistant links – thanks to tinned copper conductors and triple shielding
Tinned copper conductors combine with three layers of shielding to limit electromagnetic interference across the 1m cable length. Shielding preserves signal quality in electrically noisy environments.
Reliable connections in crowded racks or workshops, lowering the chance of dropped bytes or retries during serial comms.
Quick setup on modern PCs – with driver-free support for recent Windows versions
Driver-free operation is supported for Windows 11, 10, 8.1 and 8; driver installation is required for Windows 7 and XP, Linux and Mac OS. User reports indicate native operation on Ubuntu Linux in some cases.
Plug-and-play on current Windows systems for immediate use, with drivers available when older or alternative OSes are involved.
✨ The 4 Key Reasons for UGREEN USB to RS232 DB9 Converter Cable
- Wide device compatibility – Works with routers, telescopes and many RS‑232 peripherals
- USB-powered – No external power adapter required for simple bench setup
- Compact 1m length – Handy for bench work and short rack cabling tasks
- Ubuntu-friendly – Users report native support on Ubuntu Linux for quick use
📋 Technical Details at a Glance
- Category: Personal Computer Accessories
- Cable Type: USB to RS-232 serial converter
- Connector A: USB Type-A male
- Connector B: 9-pin DB9 RS-232 male
- Chipset: PL2303
❓ Frequently Asked Questions
Q: Is driver installation required for modern Windows versions?
A: Driver-free operation is supported on Windows 11, 10, 8.1 and 8, so no driver installation is needed on those systems. Older Windows releases require driver installation.
Q: What devices can the cable connect to?
A: DB9-equipped serial modems, ISDN terminal adapters, digital cameras, label writers, palm PCs, barcode scanners, PDAs, Cisco routers and switches, Celestron Nexstar hand controllers, and Extron/Crestron products are explicitly listed as supported.
Q: Does the cable need an external power supply?
A: Powered by the USB port, the cable does not require an external power adapter.
🏆 Our Verdict
Suitable for engineers, technicians and hobbyists who regularly need to connect modern PCs to legacy RS‑232 equipment. The combination of a PL2303 chipset, tinned copper conductors and triple shielding makes for reliable, interference-resistant serial links. While budget items vary, the broad compatibility and solid construction promise useful long-term value for bench and field work.
