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Ugreen – 30770 USB to DB9*4

1,250 VAT Inc.

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Description

Description

The Ugreen 30770 is a high‑quality USB 2.0 to 4 × DB9 (RS‑232) serial adapter cable, designed to expand your computer’s connectivity to legacy serial devices. With one USB A input and four DB9 male outputs, it enables you to interface with multiple serial instruments such as CNC controllers, industrial sensors, barcode scanners, modems, POS systems, or laboratory equipment—all from a single USB port.

Built around the Prolific PL2303TA + FS232A chipset, the 30770 offers broad OS compatibility (Windows, macOS, Linux) and supports baud rates from 75 bps to 128,000 bps. The cable is approximately 1.5 m in length, and its multi‑shielded construction with nickel‑plated DB9 connectors provides durable, low-noise signal integrity.

This adapter is ideal in industrial, laboratory, or production setups where multiple RS‑232 devices need to be connected simultaneously without needing multiple PCIe serial cards or multiple single-port dongles.

Tech Specs

Model / Chipset Ugreen 30770 (uses Prolific PL2303TA + FS232A)
USB Interface USB 2.0 Type‑A male
Serial Outputs 4 × DB9 male (RS‑232, 9‑pin)
Cable Length 1.5 m (approx. 4.9 ft)
Baud / Data Rate Programmable 75 bps to 128,000 bps
Max Serial Throughput / USB Rate RS‑232 throughput up to 250 kbps; USB interface up to 1 Mbps
Supported OS / Drivers Windows (XP → 10), macOS, Linux. Plug & Play, with driver install for older OSes; driverless on Windows 10 / 8.1
Construction / Connectors Triple-shielded cable, nickel-plated DB9 connectors, multi-layer insulation
Warranty Terms: 18‑month limited warranty (1‑to‑1 exchange), handled by 101 Multimedia / authorized distributor

★ ★ ★ ★ ☆
4.3 out of 5
“Reliable for connecting multiple serial devices at once. Make sure to install the PL2303 driver on older OS.” — Verified user feedback

Additional information

Brand

Product Categories

Cables

Cable Type

DB9, USB-A

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