






🔐 Unlock effortless RFID reading—because your workflow deserves zero friction.
The HiLetgo 125kHz EM4100 USB RFID ID Card Reader is a compact, driverless device designed exclusively for reading EM4100 and TK4100 125kHz RFID chips. It connects via USB and functions as a keyboard input, instantly transmitting the first 10 digits of the card ID plus an enter command. Ideal for professionals needing fast, reliable RFID data capture on Windows, Linux, or Android systems, this reader features a built-in buzzer and LED for immediate feedback. Note: incompatible with IC cards or other 125kHz formats, so ensure card compatibility to avoid setup issues.
| ASIN | B01MZYYDUV |
| Best Sellers Rank | #281 in Computer Memory Card Readers |
| Brand | HiLetgo |
| Color | black |
| Customer Reviews | 3.7 3.7 out of 5 stars (208) |
| Date First Available | November 29, 2016 |
| Is Discontinued By Manufacturer | No |
| Item Dimensions LxWxH | 4.33 x 3.15 x 1.02 inches |
| Item Weight | 3.2 ounces |
| Item model number | 3-01-1240 |
| Manufacturer | HiLetgo |
| Operating System | Linux, Windows |
| Product Dimensions | 4.33 x 3.15 x 1.02 inches |
| Series | 3-01-1240 |
A**V
The RFID reader works as keyboard device and only with EM4100 and TK4100 cars and fobs
The device works as intended. It doesn’t need any drivers as it is recognized as a keyboard by any Windows, Linux or Android system, basically any computer system that can recognize the USB keyboard. In that regard, the device is very similar to barcode readers. The limitation of the device is that it only reads EM4100 or TK4100 125 kHz RFID chips and nothing else. When it does read the chip, it takes 10 digits from the chip and sends it as the text string + enter as if you would input it from the keyboard. For example, 1234567890 followed by the enter key. I have the feeling that many people do not have a full understanding that 125 kHz cards have multiple formats such as EM4100, HIDH10301 IDTECK Motorolla Indala26, Kantech IoProxXSF, AWID, FECAVA FDX-A, ISO FDX-B, Farpointe Pyramid, Viking, Joblotron, Paradox, Stanely, Keri, Gallagher and others. Those are all different cards. So if you bought it randomly just looking at 125 kHz frequency and $10 price tag, it is very likely that you may have HIDH10301 or any other 125 kHz RFID chip that is incompatible with this reader; thus, people give this product a bad review claiming missing drivers without full understanding what product is and how it intends to function. Thus you get a lot of 5 stars and 1-star reviews. The seller could indicate the product specifications more clearly and add a fair warning that the product ONLY works with EM4100 or TK4100 125 kHz RFID chips, but he does put it into the description. It is your fault that you don’t read it carefully enough. Next Dangerous things implant users as myself, can get this product to work with this reader if they have a 125 kHz Atmel T5577 RFID chip (xEM) or similar, it can emulate multiple types of cards, including EM4100, EM4200, HID and Indala. The problem may arise if you are using xEM at work with, let’s say HIDH10301 card for your door or parking access and want to use this reader at home with the computer. At the same time, xEM can easily emulate EM4100 if your workplace uses a different type of card if the idea was to use your work-cloned badge with this reader, it will only work if your work security system and thus your badge that you cloned to the implant also uses EM4100. Otherwise, you will need to rewrite the codes for EM4100 every time you want to use the implant at home and then write HIDH10301 codes from your badge before you go to work which is not very practical. In conclusion, to take benefit from this very cheap and easy-to-use RFID reader, you need to have a very clear understanding of what you are trying to accomplish, if it is some record-keeping or discount card database or any other situation where you input a unique number into any sort of database for your business, it will work flawlessly as long as your cards are EM4100 or TK4100 125 kHz RFID chips. For FOB-based access, it might be trickier to set up but possible. It will not work for Windows login access as it is recognized as the keyboard and not an RFID-reader security device; thus, the best you can do is to set your user password to the 10-digit number written to the EM4100 chip and then click on the password field and scan the chip not exactly a degree of automation your would like to have I suppose.
A**S
Only compatible with older versions of Windows
This uses drivers that newer versions of Windows can’t read. Windows dropped the support a while back. I’m using Windows 10 and it won’t work. Not sure how far back you have to go for it to work. Probably works with XP, but I don’t have a machine to test that on.
M**Y
Works out of the box.
Was automatically detected by Windows and works perfectly. I scan in key fobs when granting access to new tenants with our DoorDeer entry system.
C**Z
Funciono perfectamente a la primera. Se integra facilmente como si de un lector de codigo de barras se tratara. Es mini usb, hubiera preferido un usb C. Ahora esperar ver que tan bueno sale.
A**R
Just Works
This inexpensive reader works really well. It is basically just plug and play. Get a set of matching RFID cards (make sure it is the exact type specified, as there are several incompatible standards) and you are ready to go. As mentioned in the instructions, the reader will transmit the card number, plus a carriage return to the USB port every time you swipe. You can leave Notepad (default Windows editor) open and capture the swipes that way. Or if you know how to program, you can send HTTP calls to a central server for further processing. Very handy little gadget!
B**4
Didn't work for me
I know I have a 125Khz card but it would not read it. It did not show any signs of attempting to read the card. Maybe you need a program to make it work, not sure so I gave it 3 stars for my ignorance. I ended up purchasing an HID OMNIKEY 5025 CL Reader for $55. You have to download drivers and a program but it will give you the hex codes it reads. You then have to convert it to see what the site code and card number really are but if you go through all that trouble, you can read an ID badge or fob.
N**L
After reading the badly reviewed comments; this was actually an exceptional reader!
I love how small and easy it is to use. No software is required, and the second I plugged it in it started reading my cards. I wanted something cheap and simple for reading RFID cards to log in me into my computer, and this does just that. All I did was set the ID number for the card as the pin, and now each time I tap my card on the reader on the pin sign in option, it logs me right in! This is also great for just identifying card numbers and other things like that. Totally recommend!
J**A
Don’t buy it
I have try twice and the same result. This is a piece of crap. Dot buy it. It’s a wasted of money.
L**I
Ne convient pas à mon système
C**N
Esta lectora se conecta por USB a la computadoras e inmediatamente funciona, puede usarse la aplicacion de Excel, Worpad, Notepad y cualquier otra aplicacion, ya que su funcion es que en vez de capturar manualmente el numero de serie de la tarjeta, lo hace automaticamente y muy rapido, hace un pequeño pitido cada vez que lee una tarjeta y se pone un led en color verde indicando que ya la leyo. Esta lectora es solamente para tarjetas o llaveros de frecuencia de 125 Khz y en este caso la adquiri para que leyera a 10 digitos., hay otro tipo de lectoras para diferentes digitos, dependiendo la cantidad de digitos en el numero de serie que tengan sus tarjetas. Lo recomiendo y su costo es economico
J**S
Lo compre mal pensé que era clonador no me funcionó
Trustpilot
2 weken geleden
2 weken geleden