whats the maximum amout of bits the card can hold?

hi. These cards are IR antennas for access reading pads locks. I don't think or know to be any bits (memory) on them. Depending on the reader they can go to higher levels of frequency. I tried them for a hotel I worked for--no luck.. Unfortunately you have to keep on reading. Best thing woul be a hotel system worker. Good luck Best, Doru

do they come programed

Hi AlexNo,they are without programed,because different client need to write in different format.and the chip is original chip.if you want pre-programed,it's more cheap,and it's read only,can't writable.see the link below:https://www.amazon.com/dp/B01M1L7NHIThanks.RegardsDavid Hong.

Can I punch a small hole in this and it still work?

yes,but please be careful of the coil inside. you can take a light to check where is the coil,and be careful to punch the coil. if you don't damage the coil,it will work for sure. Thanks.

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YARONGTECH-125khz writable rewrite blank white T5577 T5557 Plastic RFID hotel key card (Pack of 20)

Product ID: 38620770

Details

Brand
YARONGTECH
Color
White
Item Weight
0.12 kg
Material
PVC
Size

📏Compact Size

📦20 Pack

🔄Rewritable Chip

₨464

Duties & taxes included

In stock

Sold byAmazon SeychellesDelivered byDesertcartCustomer service byDesertcartReturns14 days · 30 with PRO

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Description

🔑 Unlock Your Imagination with Every Card!

ENDLESS POSSIBILITIES - Blank white cards ready for your unique designs and branding.
LIGHTWEIGHT PORTABLE - At just 4.2 ounces, these cards are easy to carry and store.
SEAMLESS COMPATIBILITY - Works effortlessly with 125KHz RFID writers and popular card printers.
UNLOCK YOUR CREATIVITY - With the T5577 rewritable chip, customize your hotel key cards like never before!
FUTURE PROOF YOUR ACCESS - No pre-programmed IDs mean you control the access—perfect for dynamic environments.

The YARONGTECH T5577 RFID hotel key card pack includes 20 blank, rewritable cards featuring original T5577 chips. These cards are designed for customization, allowing you to write unique IDs using a 125KHz RFID writer. Ideal for hotels and businesses looking to enhance their access control systems, these cards are compatible with major card printers and are lightweight for easy handling.

Specifications

ASIN	B01LWPHNP4
Best Sellers Rank	#259 in Home Security Systems
Brand Name	YARONGTECH
Color	White
Compatible Printer Models	Zebra, Fargo, Evolis
Customer Reviews	4.5 4.5 out of 5 stars (238)
Item Weight	0.12 kg
Manufacturer	YARONG
Manufacturer Part Number	T5577Thin-20
Material Type	PVC
Model Number	8595716309
Sheet Count	20
Size	85.5x54x0.88mm
UPC	725350789985 725350792091
Unit Count	20 Count

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The MOLLE sheath is of exceptional quality. Very happy with my purchase.

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Fast shipping and excellent packaging. The Leatherman tool feels very premium and sturdy.

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