Nearly every POS-8330 ships with a mini CD. While the driver on the CD is usually safe, it may be several years old. Use it only as a last resort, and scan the CD with antivirus software before running any .exe files.
The POS-8330 is a popular, budget-friendly thermal receipt printer used by thousands of small businesses. While the hardware is generally reliable, the software side—specifically locating the correct driver—can be a nightmare due to the device's "generic" nature.