How To Choose Magnetic Stripe Card

A magnetic stripe card, also called swipe card or magstripe card, is a type of card capable of storing data by modifying the magnetism of tiny iron-based magnetic particles on a band of magnetic material on the card. It is read by swiping past a magnetic reading head. Magnetic stripe cards are used in credit cards, identity cards, and transportation tickets. They may also contain an RFID chip for access control or electronic payment.

Magstripes divide into two main varieties: high-coercivity (HiCo) at 4000 Oe and 2750 Oe (most common), low-coercivity (LoCo) at 300 Oe. Coercivity means the magnetic material’s resistance to becoming demagnetized, it is usually measured in Oersted (Oe) units to indicate the magnetic stripe’s strength. 

HiCo Magstripe

  • require a higher amount of magnetic energy to encode, harder to erase
  • Best for frequently used cards or cards requiring a long life
  • Card writers are more costly than LoCo recording machine
  • Ideal for credit card, access control card, library card, employee ID card, and membership card

LoCo Magstripe

  • require a lower amount of magnetic energy to encode, easier to erase 
  • have a shorter lifespan
  • card writers are much cheaper than HiCo recording machine
  • Ideal for hotel room card, time and attendance card, bus ticket, gift cards, theme park ticket

HiCo and LoCo magstripes can be read by any card reader. A HiCo card writer may write both HiCo and LoCo cards, but a LoCo card writer may write only LoCo cards.

Now, magstripes can be made on each Mifare smart card with a little cost. Magstripe additional cost.

Understanding Mifare Unique Identifier (UID)

A unique identifier (UID) is a numeric or alphanumeric string that is associated with a single entity within a given system. UID make it possible to address that entity so that it can be accessed and interacted with. 

  • A UID is different from “serial number”  that UID is in Hexidecimal and a serial number is an integer number.


  • There are many ways on how to turn the array of bytes into an Integer. In particularly a 4 byte Mifare UID, the most common way “Little Endian” or “Intel” reading method, that is starting from byte 3 to byte 0,  and the converted decimal number matched the printed number on the card. 


Example : BYTE 0 = E4, BYTE 1 = 3A, BYTE 2 = C9, BYTE 3 = D2,

Little Endian reading = D2 C9 3A E4 (in hexadecimal),

Little Endian reading = 3536403172 (in decimal) using the calculator in Microsoft Windows 


  • UID is a common expression, defined in the ISO/IEC 14443-3. In some case, some terms like RID, NUID (FNUID and ONUID) are not unique. 


  • The 4-byte UID is also called “Single Size UID”. The 7-byte UID is also called “Double Size UID”. The 10-byte UID is also called “Triple Size UID”.  Mifare Classic starts with a 4-byte UID, but the number of chips produced far exceeds the 4 bytes number  (4,294,967,296) around 2012. The new Mifare Classic card is using 7-byte UID. 


  • UID is hard coded on EPROM of each Mifare card and cannot be changed 


  • UID can be used simply as an identifier in the Access Control application.


  • More importantly, UID is used in applications to avoid fraudulence such as smart card store value prepayment.


We provide service to print UID on each Mifare Card 

Happy Year of the Earth Pig

The Pig occupies the last (12th) position in the Chinese Zodiac.

According to one myth, the Jade Emperor said the order would be decided by the order in which they arrived at his party. The pig was late because he overslept. In Chinese culture, pigs are the symbol of wealth. Their chubby faces and big ears are signs of fortune as well.

By the Chinese zodiac, 2019 is a Year of the Pig and it is an Earth Pig year. The Chinese zodiac is part of Chinese astrology and folklore, it has influenced people’s lives since ancient times. Are you prepared for what 2019 will bring?

Happy New Chinese Year 2019!

Can factory Pre-punch Cards?

Slot punching a card makes it easy and convenient to use with accessories like the lanyard, badge reel or batch holder that needs a hole to clip through. It is important to print your cards first before using a slot punch.

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The process of slot punching is better done in the factory for the following reasons:

  • Slot punches can be hard on the user’s hand if you are slotting multiple cards a day
  • If you aren’t careful enough it is easy to break your card or even your card printer
  • Contactless smart cards have a system of copper antennas embedded within the card – if you slot punch in the wrong spot and cut those wires you will damage your card
  • The factory will make sure that the cards are free of imperfections before delivery