{"product_id":"zebra-zd4a042-d01m00ez-direct-thermal-printer","title":"Zebra ZD421 (ZD4A042-D01M00EZ) 4-Inch Direct Thermal Desktop Label Printer, 203 DPI, USB","description":"\u003cp\u003eThe Zebra ZD421 (model ZD4A042-D01M00EZ) is a 4-inch direct thermal desktop label printer designed for enterprise environments requiring reliable, high-volume printing. As the successor to the GK series and ZD420 line, the ZD421 delivers 700% more processing power than GK models and 30% more than ZD420, with 512 MB flash memory and 512 MB SDRAM. This architectural upgrade ensures smooth operation with modern software and complex label formats.\u003c\/p\u003e\n\u003cp\u003eBuilt with a dual-wall frame for durability and an intuitive three-button interface with five LED status indicators, the ZD421 simplifies daily operations from media loading to troubleshooting. Its modular connectivity slot allows IT teams to add Ethernet, Serial, or Wi-Fi capabilities in the field, protecting infrastructure investments as business needs evolve. The printer ships with USB 2.0, USB Host, and Bluetooth Low Energy 5 for mobile setup via Android or iOS apps.\u003c\/p\u003e\n\u003cp\u003ePowered by Zebra's Print DNA platform, the ZD421 provides enterprise-grade security, remote management through Printer Profile Manager Enterprise, and backward compatibility with ZPL and EPL languages. This makes it ideal for organizations migrating from legacy systems or scaling managed print services across multiple locations. The printer is ENERGY STAR certified and backed by a two-year standard warranty.\u003c\/p\u003e\n\u003ch2 style=\"color: #e65611;\"\u003eBest For\u003c\/h2\u003e\n\u003cp\u003eThe ZD421 direct thermal printer serves industries where fast, reliable label printing is critical to operations:\u003c\/p\u003e\n\u003cp\u003e- \u003cstrong\u003eRetail and Pharmacy:\u003c\/strong\u003e Shelf labels, price markdowns, prescription labels, and pharmacy compliance labeling with quick changeovers between media types\u003c\/p\u003e\n\u003cp\u003e- \u003cstrong\u003eHealthcare:\u003c\/strong\u003e Laboratory specimen tracking, patient ID wristbands, prescription labels, and asset tagging in clinical environments\u003c\/p\u003e\n\u003cp\u003e- \u003cstrong\u003eWarehousing and Logistics:\u003c\/strong\u003e Shipping labels, receiving documentation, bin location labels, and packing slips for distribution centers\u003c\/p\u003e\n\u003cp\u003e- \u003cstrong\u003eLight Manufacturing:\u003c\/strong\u003e Product identification labels, compliance labeling, work-in-progress tracking, and regulatory marking for assembly operations\u003c\/p\u003e\n\u003ch2 style=\"color: #e65611;\"\u003eKey Features\u003c\/h2\u003e\n\u003cp\u003e- Direct thermal printing eliminates ribbon costs and maintenance for applications requiring labels with shorter lifespans\u003c\/p\u003e\n\u003cp\u003e- 203 DPI resolution prints barcodes, text, and graphics at 6 inches per second for efficient throughput\u003c\/p\u003e\n\u003cp\u003e- Modular connectivity slot supports field-installable Ethernet, Serial, Wi-Fi 5, or Wi-Fi 6 modules without hardware replacement\u003c\/p\u003e\n\u003cp\u003e- 512 MB flash and 512 MB SDRAM with 64 MB user-accessible non-volatile memory for storing label formats and fonts\u003c\/p\u003e\n\u003cp\u003e- OpenACCESS design with color-coded media guides and removable media sensor for fast, error-free media loading\u003c\/p\u003e\n\u003cp\u003e- Print DNA suite includes remote diagnostics, firmware updates, cloud connectivity, and centralized management across fleets\u003c\/p\u003e\n\u003cp\u003e- Real-time clock for time\/date stamping and intelligent media sensor alerts to prevent downtime from media outages\u003c\/p\u003e\n\u003cp\u003e- Native support for 1D barcodes (Code 128, UPC, EAN) and 2D symbologies (QR Code, DataMatrix, PDF417) without additional licensing\u003c\/p\u003e\n\u003ch2 style=\"color: #e65611;\"\u003eQuick Specs\u003c\/h2\u003e\n\u003ctable\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003ePrint Method\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eDirect Thermal\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003ePrint Resolution\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e203 DPI (8 dots per mm)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003ePrint Speed\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e6 inches (152 mm) per second\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eMax Print Width\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e4.09 inches (104 mm)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eMedia Width Range\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e0.75 to 4.25 inches\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eMax Label Length\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e39.02 inches\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eMedia Roll Capacity\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e5-inch outer diameter, 1-inch core (supports 0.5, 1.0, 1.5, 2.0-inch cores)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eMemory\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e512 MB Flash, 512 MB SDRAM (64 MB user-accessible non-volatile, 8 MB user-accessible SDRAM)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eStandard Connectivity\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eUSB 2.0, USB Host, Bluetooth Low Energy 5\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eModular Slot Options\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e10\/100 Ethernet, RS-232 Serial, Wi-Fi 5 (802.11ac) with Bluetooth 4.1, Wi-Fi 6 (802.11ax) with Bluetooth 5.3\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eOperating System\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eLink-OS\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003ePrinter Languages\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eZPL, ZPL II, EPL, EPL2, XML, ZBI Emulation\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eUser Interface\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e3-button control with 5 LED status indicators\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eBarcode Symbologies\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e1D: Code 11, 39, 93, 128, ISBT-128, UPC-A\/E, EAN-8\/13, Interleaved 2-of-5, Codabar, Postnet, Planet Code; 2D: QR Code, DataMatrix, PDF417, MaxiCode, Aztec\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eFont Support\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e16 resident scalable ZPL II bitmap fonts, 2 resident scalable ZPL fonts, 5 resident scalable EPL2 fonts, native OpenType support, Unicode compliant, SimSun Simplified Chinese font\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eDimensions (L×W×H)\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e8.69 × 6.98 × 5.93 inches (220.8 × 177.5 × 150.7 mm)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eWeight\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e2.98 lbs (1.35 kg)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003ePower Supply\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e75W \/ 24V, US power cord included, ENERGY STAR certified\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eWarranty\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e2 years standard (OneCare service plans available)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e","brand":"Zebra","offers":[{"title":"Default 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