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White rectangular industrial label printer with front control panel and rear ports

Citizen

Citizen CL-S521II 203 dpi Industrial Direct Thermal Label Printer USB LAN Serial

SKU CH-R1MQ-HS50D MPN Cl-S521II

An industrial direct-thermal label printer with 203 dpi resolution, USB, LAN and serial interfaces, and included power cord plus cables

  • Interface typeEthernet / Serial / USB
  • Printing methodDirect Thermal
  • Printer categoryIndustrial
  • Max monochrome resolution203 × 203 dpi
  • Direct thermal printing needs no ink or toner
  • 203 dpi resolution produces clear barcode labels
  • USB, Serial and Ethernet ports offer flexible connectivity
  • Industrial build suits high-volume warehouse environments
  • Includes power cord, USB and Ethernet cables

Industrial Direct Thermal Printer 203 dpi

The Citizen CL-S521II is a new industrial label printer that uses direct thermal technology at 203 x 203 dpi resolution. It connects via USB, Ethernet (RJ-45) and Serial interfaces. The unit ships with power cord, USB and Ethernet cables included.

Suits high-volume barcode workflows

This printer serves warehouses, manufacturing lines and logistics desks that need continuous direct thermal output. It is not for operations that require thermal transfer printing with ribbons, colour label production or wireless network connectivity.

203 dpi print resolution decides fit

The fixed 203 dpi resolution determines barcode clarity and label detail for this model. Verify that this density meets your symbology and compliance requirements before purchase.

How it compares

Measured against everything we stock in Thermal Label & Receipt Printers, at today’s prices. Recalculated every night.

Price $129.99
Pricier than about 58% of the 858 comparable items (median $84.99).

Specifications

Product
Printer categoryIndustrial
Performance
Max monochrome resolution203 × 203 dpi
Ports & slots
Interface typeEthernet / Serial / USB
More details
Printing methodDirect Thermal

Questions about this item

Does the Citizen CL-S521II bundle include label rolls or ribbons, or only the printer and cables?

The bundle supplies the printer, a power cord, USB cable and Ethernet cable. No labels or ribbons are included; they must be purchased separately.

The specs list 203 dpi resolution — is that the only print quality option for this model?

Yes, the CL-S521II prints at a fixed 203 x 203 dpi; there is no higher-resolution variant of this model.

With direct thermal printing at 203 dpi, how sharp will small barcodes and text look on shipping labels?

At 203 dpi the printer produces clear, scannable barcodes and legible text for standard shipping and inventory labels.

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