Based on this product's specifications, here are some alternatives and similar models
USB to Serial Link Sandberg PL-2303GT
Summary description:
The Sandberg USB to Serial Link with PL-2303GT chipset allows you to connect serial devices to your computer via USB. It features a compact design with dimensions of 400 mm x 35 mm x 15 mm, making it easy to transport. The product comes in a blister package measuring 135 mm x 24 mm and includes one unit per pack. Ideal for connecting devices like printers, modems, and other serial peripherals.