Zebra ZD621 Label Printer – Touchscreen, RFID and 300 dpi

Name: Zebra ZD621
Brand: Zebra Technologies

Zebra · Label printers · Desktop printers

203/300 dpi · RFID · Wi-Fi 6

Zebra ZD621 – premium label printer for warehouses, logistics and healthcare

The Zebra ZD621 is a 4-inch desktop label printer for demanding daily printing. It prints at up to 203 mm/s in 203 or 300 dpi, using thermal transfer or direct thermal, and is available with a colour touchscreen, built-in RFID encoder, linerless printing and as a healthcare model. Optiscan delivers the printer ready to use with labels, ribbons and service.

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Zebra ZD621 desktop label printer with colour touchscreen

108 mmmax print width (300 dpi)

203 mm/smax speed (203 dpi)

4.3″colour touchscreen (option)

RFIDoptional UHF encoder

300 m

Fewer ribbon changes

The thermal transfer model takes 300-metre ribbons and label rolls up to 127 mm in diameter. That means fewer interruptions when you print large volumes of labels every day.

Direct thermal or thermal transfer?

ZD621 direct thermalNo ribbon needed – simple and cost-effective for shipping, picking and receipt labels with a short lifespan. Can also print on linerless labels.

ZD621 thermal transferPrints with a ribbon for labels that need to last: product, shelf and asset labels that resist light, abrasion and chemicals.

Features

Colour touchscreen

4.3″ colour touchscreen with clear menus and wizards that make settings and media changes easier.

RFID encoding

Built-in UHF RFID encoder (RAIN RFID) that prints the label and encodes the chip in one step.

Healthcare model

Disinfectant-ready and UV-resistant housing, sealed buttons and an IEC 60601-1 certified power supply.

Flexible connectivity

Ethernet, USB and serial as standard. Wi-Fi 6 and Bluetooth 5.3 can be added at the factory or later.

Security and remote management

Link-OS and Zebra DNA with PrintSecure for secure configuration and central management of your printer fleet.

Linerless labels

Direct thermal model for Zebra ZeroLiner labels without backing paper – less waste and more labels per roll.

Applications

Warehousing and logistics
Shipping labels
Retail and e-commerce
Manufacturing
Healthcare and laboratories
RFID tagging

Technical specifications

Feature	Zebra ZD621
Print method	Thermal transfer or direct thermal
Resolution	203 dpi standard, 300 dpi optional
Max print width	104 mm (203 dpi) / 108 mm (300 dpi)
Max print speed	203 mm/s (203 dpi) / 152 mm/s (300 dpi)
Display	4.3″ colour touchscreen (optional, standard on healthcare model) or five status icons and three buttons
Memory	512 MB flash, 256 MB SDRAM
Standard connectivity	Ethernet, USB 2.0, USB host, serial RS-232 and Bluetooth Low Energy 5 (for setup)
Wireless (optional)	Wi-Fi 6 (802.11ax) + Bluetooth 5.3 or Wi-Fi 5 (802.11ac) + Bluetooth 4.2
Media width	15–108 mm (direct thermal), 15–118 mm (thermal transfer)
Label length	6.35–991 mm
Roll outer diameter	Max 127 mm
Ribbon	300 m or 74 m
RFID	Optional: UHF EPC Gen 2 V2.1 / RAIN RFID
Healthcare model	White, disinfectant-ready and UV-resistant housing, IEC 60601-1 certified power supply, sealed buttons
Linerless	Optional for direct thermal printing with Zebra ZeroLiner labels
Programming languages	ZPL II, EPL 2, XML, ZBI, PDF Direct
Software	Link-OS and Zebra DNA (incl. PrintSecure and Printer Profile Manager Enterprise)
Dimensions and weight	Direct thermal: 221 × 177 × 151 mm, 1.6 kg · Thermal transfer: 267 × 202 × 192 mm, 2.5 kg
Operating temperature	4.4–41 °C, humidity 10–90% (non-condensing)
Warranty	At least 2 years from shipment (varies by region)

Source: Zebra ZD600 series spec sheet (01/2025).

Services and accessories

OptiCare ContractPredictable service and replacement devices Repair centerManufacturer-certified repairs Book a demoSee the printer in your own process

Frequently asked questions about the Zebra ZD621

What is the Zebra ZD621?

The Zebra ZD621 is a 4-inch desktop label printer in Zebra’s premium class. It prints with thermal transfer or direct thermal in 203 or 300 dpi, at up to 203 mm/s, and is available with a colour touchscreen, RFID and as a healthcare model.

What is the difference between thermal transfer and direct thermal printing?

Direct thermal printing needs no ribbon and suits labels with a short lifespan, such as shipping labels. Thermal transfer uses a ribbon and produces labels that resist light, abrasion and chemicals for longer.

Can the ZD621 encode RFID labels?

Yes. The ZD621 is available with a built-in UHF RFID encoder (EPC Gen 2 V2.1 / RAIN RFID) that prints the label and encodes the RFID chip in one step.

Is there a ZD621 for healthcare?

Yes. The healthcare model has a white, disinfectant-ready and UV-resistant housing, sealed buttons, an IEC 60601-1 certified power supply and a colour touchscreen as standard.

What connectivity does the ZD621 have?

Ethernet, USB 2.0, USB host and serial RS-232 are standard. Wi-Fi 6 or Wi-Fi 5 with Bluetooth is optional and can be installed at the factory or later.

Request a quote for the Zebra ZD621

Optiscan is a long-term official partner of Zebra. Tell us how many labels you print and in what environment, and we will recommend the right model, labels and ribbons – deliver the printer ready to use and service it at our certified repair center.