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Brand: Zebra Technologies
Zebra ZD621 Desktop Label Printer with Ethernet and Serial
Description
The Zebra ZD621 is the higher-specification desktop printer of the ZD600 family. It prints barcode labels, tags and wristbands by direct thermal or thermal transfer at up to 8 in. per second, with 10/100 Ethernet, serial and USB 2.0 with USB host as standard and an optional 4.3 in. full-colour touch LCD.
A networked desktop printer for busier stations
Busy goods-in, stores, sample-handling and dispatch stations need a printer that connects to the network without add-ons. The ZD621 includes a media dancer for print quality, OpenACCESS loading, head-up sensor, multi-position transmissive and full-width reflective sensor, fan-fold slot and 5 in. outside-diameter roll capability, plus 256 MB SDRAM and 512 MB Flash, Link-OS, Print Touch and Bluetooth LE for set-up.
RFID models integrate the Zebra RE40 reader/encoder and support UHF EPC Gen 2 V2.1, ISO/IEC 18000-63 and RAIN RFID tags with a minimum pitch of 0.6 in. (16 mm).
Technical specifications
| Parameter | Specification |
|---|---|
| Print methods | Direct thermal and thermal transfer |
| Resolution | 203 dpi (8 dots/mm); 300 dpi (12 dots/mm) optional |
| Maximum print width | 203 dpi: 4.09 in. (104 mm); 300 dpi: 4.27 in. (108 mm) |
| Maximum print speed | 8 in./s at 203 dpi |
| Maximum print length | 39 in. (991 mm) |
| Media width | ZD621t 0.585 to 4.65 in. (15 to 118 mm); ZD621d 0.585 to 4.25 in. (15 to 108 mm) |
| Maximum roll outer diameter | 5 in. (127 mm) |
| Ribbon width | up to 4.3 in. (109.2 mm) |
| Memory | 256 MB SDRAM; 512 MB Flash |
| Standard connectivity | 10/100 Ethernet, serial, USB 2.0, USB host, Bluetooth Low Energy |
| Display options | Standard 3-button interface; optional 4.3 in. full-colour touch LCD (480 x 272), 5 status icons |
| Other options | Cutter, dispenser, battery (ZD-Series 2750 mAh), RFID models with RE40 reader/encoder, healthcare models |
| Languages | ZPL II, EPL2, ZBI 2.0; PDF Direct |
| Weight (thermal transfer model) | 5.5 lb (2.5 kg) |
| Energy | ENERGY STAR certified, Energy Efficiency Level VI |
Healthcare and RFID variants
Healthcare models use a white, disinfectant-ready plastic housing with a sealed button interface, UV-resistant material for UV cleaning protocols and an IEC 60601-1 certified power supply; RFID models print and encode tags and offer job monitoring, an RFID log with timestamps, adaptive encoding and RFID ZPL commands compatible with existing Zebra RFID printers. Both desktop models run Link-OS, so ZPL II label formats written for other Zebra printers can normally be reused, and the printer can be set up through the Bluetooth Low Energy mobile app before it is connected to the network.
Choosing the ZD621 and ordering
Choose the ZD621 over the ZD421 when Ethernet and serial are needed at the base, when 8 in./s is required, or when a touch display is wanted. For all-shift plant use, choose the industrial ZT series. Confirm thermal transfer or direct thermal, resolution, display, battery, cutter or dispenser, RFID or healthcare version and media before ordering. See also industrial automation accessories.
Deployment notes: set the printer up with the Bluetooth Low Energy mobile app, then assign its network address over Ethernet and manage it with the Link-OS tools. Choose direct thermal stock for short-life shipping and receiving labels, and thermal transfer with a matched ribbon where labels must resist abrasion or heat. The sheet lists a head-up sensor, a multi-position transmissive sensor and a full-width reflective sensor, so gap, notch and black-mark media are all supported, and rolls up to 5 in. outside diameter plus fan-fold stock can be loaded without opening the mechanism fully.
Related Zebra Technologies products: Zebra ZD421 Desktop Thermal Transfer Label Printer, Zebra ZT231 Mid-Range Industrial Label Printer, Zebra ZT421 6-Inch Wide Industrial Label Printer, Zebra ZT111 Entry Industrial Label Printer, Zebra ZT510 Heavy-Duty Industrial Label Printer and Zebra ZT411 Industrial Thermal Transfer Label Printer.
Documents and quotation
The Zebra ZD621 specification sheet (manufacturer PDF) is attached to this page. Send label type and volume for a quotation from Seven Star LLC, an independent supplier in Muscat.
Datasheets & Documents
- Datasheet Zebra ZD621 Printer Specifications (manufacturer PDF) Download
Reviews (0)
About brand
Zebra Technologies is an American maker of barcode printers, mobile computers, scanners and RFID equipment. It was founded in 1969 in Chicago as Data Specialties by Ed Kaplan and Gerhard Cless and took the Zebra name in 1986. Zebra is headquartered in Lincolnshire, Illinois, is listed on Nasdaq, and added Motorola Solutions' enterprise business in 2014.
Seven Star LLC is an independent supplier in Muscat. We list Zebra label printers for warehouses, production lines and laboratories in Oman and the GCC.
Zebra Technologies company profile
| Founded | 1969, Chicago, Illinois, USA, as Data Specialties |
|---|---|
| Founders | Ed Kaplan and Gerhard Cless |
| Renamed | Zebra Technologies, 1986 |
| Headquarters | Lincolnshire, Illinois |
| Listing | Nasdaq (ZBRA) |
| Product families | ZT industrial and ZD desktop label printers, TC and MC mobile computers, DS and LI barcode scanners, RFID readers and tags, rugged tablets |
Milestones
- 1969: Data Specialties is founded in Chicago.
- 1986: The company becomes Zebra Technologies.
- 2014: Zebra acquires Motorola Solutions' enterprise business.
Zebra product series
Industrial printers include the entry ZT111, the mid-range ZT231, the ZT411 and the 6-inch ZT421, the heavy-duty ZT510 and the high-performance ZT610 and 6-inch ZT620. The ZE511 print engine is designed for label applicators. Desktop models include the ZD421 thermal transfer printer and the ZD621 with Ethernet and serial interfaces.
The printers use ZPL programming and the Link-OS operating system, with resolutions up to 600 dpi on selected models and RFID encoding available on some.
Where Zebra printers are used
Shipping and pallet labels, product and asset labels, warehouse location and bin labels, laboratory sample labels and automatic print-and-apply on packaging lines.
Zebra Technologies products we list
Ordering Zebra printers: what we need
Send the model, print width and resolution, label size and media type, print volume, ribbon type, interface (Ethernet, Wi-Fi, serial or USB) and any cutter, peeler, rewinder or RFID requirement.
Facts checked against Zebra's corporate history and filings, October 2026.
Browse Zebra Technologies products by category: Automation Accessories.
FAQ
Questions about the Zebra ZD621 Desktop Label Printer with Ethernet and
Answers from our engineering team on installation, compatibility and integration.
01What is the maximum print speed of the ZD621?
8 in. per second at 203 dpi.
02What interfaces are standard?
10/100 Ethernet, serial, USB 2.0, USB host and Bluetooth Low Energy.
03Is a colour display available?
Yes, a 4.3 in. full-colour touch LCD is listed as an optional feature.
04What print width does it have?
4.09 in. (104 mm) at 203 dpi; 4.27 in. (108 mm) at 300 dpi.
05Can it encode RFID tags?
RFID models with the Zebra RE40 reader/encoder support UHF EPC Gen 2 V2.1 and ISO/IEC 18000-63 tags.
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