Zebra GK420D Direct Thermal Label Printer USB/SER


Superseded by ZD421D
$550.00 (Inc. GST)
$500.00 (Ex. GST)
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Zebra GK420D printer has been replaced by the Zebra ZD421.

See the new ZD421 Direct Thermal Desktop Label PrinterThe Zebra ZD421 is the same price as the GK420 and includes all the same key features. You can compare the compatibility and features of the newer ZD421 against the GK420:

adobe-acrobat-reader.png ZD421 vs. ZD420 vs. GK420 Comparison PDF


Zebra GK420D Direct Thermal Label Printer (203dpi) USB/Serial/Parallel 

Zebra GK420D desktop label printer offers the best value and deliver the best in class, featuring print widths up to 104 mm (4 inches) and a fast 127 mm (5 inches) per second print speed to meet your low- to medium-volume printing requirements. This direct thermal printer has a sleek and compact design, boasts the smallest footprint and supports a variety of applications and industries.


This printer comes standard with dual connectivity (USB, serial) for easy integration into existing systems. For additional flexibility, 10/100 internal Ethernet is also available.

Always a Perfect Fit
From the basic GK label printer model to the feature-rich GX model, these printers are reliable, durable, and flexible to fit almost any low- to mid-volume printing application and budget. 
Built with Zebra durability and reliability, these provide the best value of all basic desktop thermal printers. Choose the space-saving direct thermal version of either model (GK420D or GX420D) for the smallest footprint or the thermal transfer version (GK420T or GX420T)to save users time with the easiest ribbon-loading system available.


  • Best value in a desktop printer
  • Enhanced performance and speed
  • Built for ease-of-use and durability
  • Auto calibration of media

Zebra GK420D specifications at a glance

Print method: Direct thermal
Printer resolutions: 203dpi/8 dots per mm
Print width: 4.09"/ 104mm
Maximum print speed: : 5”/127 mm per second
Triple connectivity: USB, Parallel, Serial

Put GK420D to work in:

Retail: Price marking, coupon and receipt printing
Healthcare: Pharmacy prescription labelling, specimen labeling, patient tracking
Manufacturing: Light industrial work in progress, product labelling
Travel and Hospitality: Boarding passes, bag tags, ski lift tickets 

Find labels compatible with this printer here.

adobe-acrobat-reader.pngZebra GK420D Spec sheet PDF



Superseded by ZD421D
4.18 KGS
Calculated at Checkout
Print Method:
Direct Thermal
Printer Connectivity:
Printer Connectivity:
Printer Resolution:
203 dpi
Printer Type:
Desktop Printers
Please check the link for the product Manufacturer's Warranty