We take cryptocurrency — so the coins you hold can buy real hardware.Pay in crypto, spend it on real hardware. Free insured shipping worldwide over $399. Plain, unbranded boxes, sent from Germany.Free insured shipping over $399. Your rate is locked for 30 minutes once checkout opens.Rate locked 30 minutes. Every item sealed, serial-checked and covered by a 24-month warranty.Sealed, 24-month warranty.

Saved items Sign in
Grey USB-A to DB9 male serial adapter cable, 6 ft PVC jacket

Ugreen 20222 USB to RS232 DB9 Adapter 6ft PL2303 Grey

SKU CH-RZKM-4TZK4

Connects RS232 serial devices to USB ports with PL2303 chip and 256kbps transfer rate

  • ColorGrey
  • Dimensions2.4 in x 14.5 in x 14.6 in
  • Weight0.12 kilograms
  • Connects legacy serial devices through a modern USB port
  • Driver-free setup on Windows 8.1, 10 and 11; drivers supplied for older systems
  • PL2303 chip with multi-layer shielding keeps data intact
  • Gold-plated DB9 contacts and PVC jacket resist wear and tangles
  • Transfers serial data at up to 256 kbps

Ugreen 20222 USB to RS232 DB9 Adapter

The Ugreen 20222 is a USB to serial adapter cable designed to connect legacy RS232 devices to modern computers lacking native serial ports. It targets technicians, engineers and retail operators who need to interface PLC controllers, cash registers, barcode scanners or POS systems via a standard DB9 male connector. The six-foot cable length provides flexible placement for industrial or point-of-sale equipment.

PL2303 chipset with 256kbps maximum rate

The single specification that determines suitability is the integrated PL2303 chipset supporting serial transmission rates up to 256kbps. This bandwidth ceiling dictates whether the adapter can handle the specific baud-rate requirements of your target hardware. Driver installation is required for Windows 7, XP, macOS and Linux, while Windows 8 and later versions operate driver-free.

Multiple shielding layers maintain signal integrity

Under continuous operation the adapter relies on multiple shielding layers and gold-plated connectors to suppress electromagnetic interference and prevent data corruption. The flexible PVC jacket resists tangling during extended deployments in tight cabinets or on mobile carts. Stable throughput is maintained across long sessions without the signal degradation common in unshielded alternatives.

Highlights

  • Connects legacy serial devices through a modern USB port
  • Driver-free setup on Windows 8.1, 10 and 11; drivers supplied for older systems
  • PL2303 chip with multi-layer shielding keeps data intact
  • Gold-plated DB9 contacts and PVC jacket resist wear and tangles
  • Transfers serial data at up to 256 kbps

Specifications

BrandUgreen
Model20222
Part Number20222
ColorGrey
Dimensions2.4 in x 14.5 in x 14.6 in
Weight0.12 kilograms

Questions about this item

What does the 256 kbps transmission rate mean when I connect this adapter to a real machine?

The 256 kbps rate is the maximum serial data throughput the PL2303 chipset can sustain, so actual transfer speed will not exceed this figure when communicating with RS232 devices.

Which USB standard does the adapter use and what does it limit in practice?

The adapter plugs into a standard USB-A port and is driver-free on Windows 8 and later, while Windows 7, XP, macOS and Linux require a driver download.

What physical space and connectors does the 6 ft cable with DB9 male need to fit?

The cable is 6 ft long with a DB9 male 9-pin connector on one end and a USB-A plug on the other, weighing 0.12 kg and measuring 2.4 in by 14.5 in by 14.6 in overall.

New to this? Which coin should you pay with — what to check, what it costs to pay, and what is never asked for.

Also in this aisle

People compared these

Same shelf, same checkout — eight coins and a 30-minute rate lock.