The original PL2303-DB9 was revised with an updated chipset in April of 2021. The original version of PL2303-DB9 featured a Prolific PL2303HXD chipset which was discontinued by Prolific in 2020. This version of the adapter featured a blue plastic casing as shown below:

The adapter has since been updated to use the more recent PL2303GT chipset from Prolific. This chipset offers many of the same features as PL2303HXD and is a drop-in replacement in most applications. The new version of the adapter features a grey plastic casing as shown below:

Why the PL2303-DB9 Was Updated

The original Prolific PL2303HXD chipset was discontinued by Prolific in 2020, prompting the update to the PL2303GT chipset. This new chipset offers many of the same features and serves as a drop-in replacement for most applications.

Applicable To

• Plugable PL2303-DB9