Grandstream GDS37XX-CARD 125kHz EM4100 RFID Card for GDS Door Systems

The Grandstream GDS37XX-CARD is a 125kHz EM4100 proximity card that opens the door when swiped on a GDS3705 or GDS3710 reader. Use it to give each employee or tenant their own credential instead of one shared PIN.

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The Grandstream GDS37XX-CARD is a personal access card for GDS door systems, built on 125kHz EM4100 technology. Hold it near the reader on a GDS3705 or GDS3710 and the unit checks the card number, then releases the lock if that card is enrolled. It is passive, with no battery.

Grandstream GDS37XX-CARD at a glance

• Frequency: 125kHz.
• Card type: EM4100.
• Capacity: the GDS3705 holds up to 2,000 card users, and Grandstream recommends the same limit on the GDS3710.
• Also read by: GDS3725, GDS3726 and GDS3727, which accept 125kHz cards alongside NFC.

Enrolling cards

On a GDS3705, turn on Card Issuing mode in the settings and swipe each card at the door; the unit adds them automatically. For a long staff list, plug the GDS37XX-RFID-RD reader into a PC and add cards in batches through GDS Manager, with a name and group for each person.

Where it fits

A Riyadh office can hand every employee a card and cancel just one when someone leaves, with no need to change a shared door code. A Dammam apartment block can issue one card per flat for the main entrance.

Card, reader or in-wall kit?

The GDS37XX-CARD is what people carry to open the door. The GDS37XX-RFID-RD is a USB desk reader for enrolling cards on a computer; it opens nothing. The GDS37XX-INWALL is a flush-mounting kit for the intercom itself. Note that 13.56MHz NFC cards will not work on a GDS3705 or GDS3710.

Frequently Asked Questions

Will the GDS37XX-CARD work on a GDS3725 or GDS3727?

Yes. Grandstream states the GDS372x series reads 125kHz cards in addition to NFC credentials.

Can I use NFC or MIFARE cards on a GDS3710?

No. The GDS3710 and GDS3705 read 125kHz EM4100 cards only; 13.56MHz cards are not recognized.

Do I need the USB reader to enroll cards?

Not always. A GDS3705 can enroll cards at the door in Card Issuing mode. The GDS37XX-RFID-RD helps when you manage many cards in GDS Manager.

Specifications

• Model: GDS37XX-CARD
• Type: Passive RFID proximity access card
• Frequency: 125kHz
• Card type: EM4100
• Battery: None required
• Compatible GDS371x/GDS370x: GDS3705, GDS3710, GDS3712
• Compatible GDS372x: GDS3725, GDS3726, GDS3727 (read 125kHz alongside NFC)
• Card capacity per device: GDS3705 up to 2,000 card users; GDS3710 up to 2,000 cards (recommended)
• Enrollment: Card Issuing mode on the GDS3705, or GDS Manager with a USB reader
• Not compatible with: 13.56MHz NFC-only readers

Features

• 125kHz EM4100 technology: the exact credential type the GDS3705 and GDS3710 read.
• No battery: a passive card powered by the reader, so nothing to charge or replace.
• Up to 2,000 card users per GDS3705 or GDS3710: enough for a full office building.
• Also read by the GDS3725, GDS3726 and GDS3727: the GDS372x series accepts 125kHz cards as well as NFC.
• Single or batch enrollment in GDS Manager: using the GDS37XX-RFID-RD reader on a PC.