"Upgrade your Zebra ZD621t printer with this high-quality interface card. This card is equipped with both ethernet and RS232 connectivity, allowing for seamless integration with your existing systems. At just 0.11kg, it's a lightweight and practical addition to your printer setup. Manufactured by Zebra, you can trust that this interface card is reliable and compatible with your ZD621t printer. Enhance your printing capabilities today with this essential accessory."