do these work with an HID system? ( if the code is pulled form a proxcard2)

YES,If you have HID writer,it can write in HID format.WG26. Thanks.

Do these arrive blank or already set with a code number? Can I use them out of the box if I don’t have a tag writer?

No,this one is original chip,doesn't set with a code, if you want the tag already has a code,please see below: https://www.amazon.com/dp/B078HPJNF1

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125khz RFID Writable rewritable T5577 fob tag for RFID Writer (Pack of 10) (Black)

125khz RFID Writable rewritable T5577 fob tag for RFID Writer (Pack of 10) (Black)

Product ID: 57504311

Details

Brand
YARONGTECH
Color
Black
Finish Type
Uncoated
Material
Acrylonitrile
Shape
Rectangular

📡125kHz frequency for versatile RFID use

🔄Rewritable T5577 chip with 330-bit storage

🔑Pack of 10 black keyfobs for bulk convenience

63.45 DT

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Sold byAmazon TunisiaDelivered byDesertcartCustomer service byDesertcartReturns14 days · 30 with PRO

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Description

🔐 Rewrite your access, rewrite the rules.

BULK READY - Pack of 10 sleek black keyfobs designed for professionals managing multiple access points.
COMPACT POWERHOUSE - 330-bit storage with 264 bits free—ample space for your custom data needs.
CUSTOMIZABLE STYLE - Available in multiple colors and logo customization options to match your brand identity.
ULTIMATE FLEXIBILITY - Write and rewrite your own IDs with the original ATMEL T5577 chip—no pre-programmed limits.
SEAMLESS COMPATIBILITY - Supports 125kHz and H ID WG26 formats for broad RFID copier use (just bring your writer!).

This pack of 10 black RFID keyfobs features original ATMEL T5577 rewritable chips operating at 125kHz frequency. Each fob offers 330-bit storage capacity and supports multiple ID formats, making them ideal for professionals needing customizable, bulk access control solutions. Note: requires a compatible 125kHz RFID writer for programming.

Specifications

ASIN	B079CL1KWR
Best Sellers Rank	#224 in Home Security Systems
Brand Name	YARONGTECH
Color	Black
Customer Reviews	4.3 4.3 out of 5 stars (836)
Finish Type	Uncoated
Item Shape	Rectangular
Item Weight	1.76 ounces
Manufacturer	YARONG
Manufacturer Part Number	t57he-10
Material Type	Acrylonitrile Butadiene Styrene
Model Number	8595747712
Number of Items	10
Number of Labels	10
UPC	725350792459
Unit Count	10 Count

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Our prices include the product cost, international shipping, import duties, customs clearance, and local delivery charges. We handle all customs and import procedures, ensuring there are no hidden fees upon delivery. PRO members receive additional benefits including free shipping.

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63.45 DT

Duties & taxes included

In stock

Sold byAmazon TunisiaDelivered byDesertcartCustomer service byDesertcartReturns14 days · 30 with PRO

Buyer Protection · Full refund if your order doesn't arrive as described.

Desertcart purchases this item on your behalf and handles shipping, customs, and support to Tunisia.

Secure transaction

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TrustScore 4.5 | 7,300+ reviews

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