Product Overview

The DO RFID Classic 4K(S70) 13.56MHz Blank RFID Printable Card is an HF RFID card built for commercial and industrial deployments that require dependable contactless identification, access control, data storage, and system integration. Based on a mature 13.56 MHz communication platform and ISO/IEC 14443-A protocol, this card delivers 4096 bytes of user memory across 40 sectors, making it suitable for applications where multiple data blocks, secure access zones, or segmented storage are necessary.

Procurement teams, system integrators, and distributors choose this card because it provides a stable, field-proven chip architecture, straightforward programming logic, and broad compatibility with existing NFC and RFID reader infrastructure. It functions as a blank medium, allowing buyers to encode, personalize, print, and deploy according to their own project requirements without being locked into a proprietary system.

As a manufacturer with dedicated production lines for HF PVC cards, DO RFID Reader supplies this product in bulk quantities with consistent read/write performance, uniform material thickness, and reliable antenna tuning. Buyers involved in large-scale deployments, OEM programs, or long-term supply agreements benefit from stable production capacity, fast lead times, and batch-to-batch consistency.

Product Advantages

• Large Memory for Multi-Application Storage: 4096 bytes divided into 32 sectors of 4 blocks and 8 sectors of 16 blocks provide ample space for storing access credentials, loyalty points, transport fare data, identification records, and application-specific files on a single card.
• Standard CR80 Form Factor: The 85.6 mm x 54 mm x 0.8 mm PVC card fits all standard ID card printers, badge holders, and card dispensing systems, simplifying integration into existing workflows.
• Blank and Ready for Customization: Each card ships without pre-encoded data, giving system integrators and OEM customers full control over sector allocation, key structure, and application logic.
• Secure Data Transmission: CRYPTO1 encryption protects communication between the card and reader, reducing the risk of unauthorized data access during contactless transactions.
• Compatible with Standard Printers: The PVC surface supports dye-sublimation and thermal transfer printing, enabling on-demand card personalization with logos, photos, barcodes, and text using printers from leading manufacturers.
• Durable PVC Construction: Waterproof and resistant to daily wear, the card maintains read reliability in environments where cards are carried, swiped, tapped, or exposed to handling.

Key Features

• Operating Frequency: 13.56 MHz
• Chip Type: DO RFID Classic 4K
• User Memory: 4096 Bytes (40 sectors, divided into 32 sectors of 4 blocks and 8 sectors of 16 blocks)
• UID Size: 4 Bytes
• Read Range: Up to 10 cm (depending on reader antenna geometry and environment)
• Data Transfer Rate: Up to 106 kbps
• Communication Protocol: ISO/IEC 14443-A
• Dimensions: 85.6 mm x 54 mm x 0.8 mm (ISO standard CR80)
• Material: PVC
• Factory Default A/B Key: FF FF FF FF FF FF
• Encryption: CRYPTO1
• Compatible Readers: Works with NFC-enabled devices and ISO/IEC 14443-A compliant readers
• Printing Support: Dye-sublimation and thermal transfer printing compatible

Technical Specifications

Industrial Applications

System integrators and project contractors deploy the DO RFID Classic 4K(S70) card across multiple sectors where reliable contactless identification and data storage are required. Typical deployment scenarios include:

• Access Control: Office buildings, industrial facilities, data centers, and restricted zones use the card as a secure credential. The 40-sector memory allows segmentation of access permissions, time zones, and audit logs on a single card.
• Public Transportation Ticketing: Transit authorities integrate the card into fare collection systems, leveraging the fast data transfer rate and reliable read range for gate transactions and balance storage.
• Loyalty and Membership Programs: Retail chains, fitness clubs, and hospitality businesses issue the card for member identification, point accumulation, and tier-based benefits, with enough memory to store customer profiles and transaction history.
• Cashless Payments: Cafeterias, vending operators, and event venues use the card as a stored-value token for fast point-of-sale transactions without cash handling.
• Identification Badges: Enterprises, government agencies, and educational institutions print employee or student ID badges on the blank PVC surface, combining visual identification with contactless credential functionality.
• Parking and Logistics: Parking operators and warehouse managers issue the card for vehicle identification, gate entry, and driver tracking within gated facilities and depot environments.

OEM / ODM Manufacturing Support

DO RFID Reader provides OEM and ODM services for buyers who require customized card solutions under their own brand identity. The factory supports the following customization options:

• Chip Encoding: Cards can be pre-encoded with customer-specific sector data, key structures, and application files before shipment, reducing on-site programming effort during deployment.
• Surface Printing: The blank PVC surface accepts full-color offset printing, silk-screen printing, and digital printing for logos, artwork, serial numbers, barcodes, and QR codes.
• Custom Packaging: Bulk orders can be packaged in branded boxes, poly bags, or retail-ready packaging according to distributor requirements.
• Variable Data Personalization: Sequential numbering, magnetic stripe encoding, and signature panels can be added during production for multi-functional ID cards.
• Technical Documentation: OEM partners receive product datasheets, programming guides, and compatibility references to support their integration and resale activities.

Buyers developing custom access control systems, transit fare schemes, or loyalty platforms benefit from working directly with the manufacturer, ensuring the chip configuration, antenna tuning, and material specifications match their application requirements.

Factory Production Advantages

As a dedicated RFID card manufacturer, DO RFID Reader operates production lines that are configured specifically for HF PVC card manufacturing. Key production capabilities include:

• Stable Production Capacity: The factory maintains multiple laminating and punching lines capable of producing hundreds of thousands of cards per month, supporting both scheduled orders and urgent project replenishment.
• Batch Consistency: Incoming chip inspection, antenna tuning verification, and final read-range testing are performed to ensure every batch meets the same performance baseline. This is critical for system integrators deploying cards across multiple sites where reader sensitivity and card response must remain uniform.
• Material Quality Control: PVC sheets are sourced from qualified suppliers and inspected for thickness consistency, surface finish, and printability before entering production.
• Fast Lead Times: Standard blank cards ship within short production cycles. Custom-encoded or printed orders are scheduled according to complexity, with clear production timelines communicated to the buyer.
• Export-Ready Packaging: Cards are packed in protective packaging suitable for international shipping, reducing the risk of damage during transit to distributors, integrators, and project sites worldwide.

For procurement professionals evaluating long-term supply agreements, the factory offers transparent communication on production scheduling, quality inspection procedures, and logistics coordination.

Bulk Supply & Project Deployment Support

Wholesale buyers and project contractors ordering the DO RFID Classic 4K(S70) card benefit from volume-based pricing and supply chain reliability. The manufacturer supports order quantities ranging from small batches for pilot testing to full production runs for multi-site deployments.

• Volume Pricing Tiers: The pricing structure is designed to reward bulk purchasing, with decreasing per-unit costs at 200, 600, and 1000 pieces, and further discounts available for larger quantities through direct inquiry.
• Project Integration Support: Technical support is available to assist buyers with reader compatibility verification, sector mapping strategies, and encoding workflow setup, reducing deployment risk for first-time integrators.
• Long-Term Supply Agreements: Buyers running ongoing access control or identification programs can establish scheduled deliveries with the factory, ensuring card availability without maintaining large on-site inventory.
• Sample Evaluation: Sample units are available for testing before bulk commitment, allowing system integrators to validate read range, memory access, and printing quality in their own environment.

For project managers and procurement officers, contacting the factory directly provides access to customized pricing, production timelines, and technical consultation specific to the deployment scenario.

Frequently Asked Questions

What readers are compatible with this card?
The card operates on the ISO/IEC 14443-A standard and works with all NFC-enabled readers that support this protocol, including common 13.56 MHz desktop readers, handheld terminals, and mobile NFC devices.

Can this card be printed with a standard ID card printer?
Yes. The PVC surface is compatible with dye-sublimation and thermal transfer printers, allowing full-color printing of text, images, barcodes, and QR codes.

Is the card pre-programmed or blank?
The card ships blank with factory default keys (FF FF FF FF FF FF). Buyers can program sector data, access conditions, and application files according to their own system requirements.

What is the factory default key and can it be changed?
The factory default A/B key is FF FF FF FF FF FF. This can be changed during encoding to match the security requirements of the target application.

What is the read range of this card?
The typical read range is up to 10 cm, depending on the reader antenna design, surrounding materials, and installation environment.

Can I order custom key structure or pre-encoded cards?
Yes. OEM and ODM orders can specify custom sector keys, data pre-loading, and application file structures. Contact the factory with your encoding requirements for a quotation.

What packaging options are available for bulk orders?
Cards can be packed in bulk boxes, individually wrapped, or in retail-ready packaging. Custom packaging is available for OEM and distributor programs.

How do I request a quote for large quantities?
Submit your target quantity, delivery schedule, and any customization requirements directly to DO RFID Reader for a volume-based quotation and production timeline.

Does the factory provide technical documentation for system integration?
Yes. Product datasheets, memory mapping guides, and programming references are available to support system integrators during development and deployment phases.