RFID Handheld 125khz Key fob Smart Reader Writer Copier with 10pcs Writable T5577 Key Cards
Quick take
This handheld RFID 125kHz reader/writer is designed to copy compatible key fobs and program blank T5577 (rewritable) key cards and fobs. It is best for buyers who already know their existing tags are 125kHz EM4100, EM4305, or TK4100 types. The main caveat is compatibility and copy confirmation, since some buyers report trouble cloning when tags do not match the supported format.
Pros and cons
Pros
- Handheld design with simple read and write buttons, built-in LED and buzzer signals.
- Portable, powered by two 1.5V AAA batteries (batteries not included).
- Includes 10 rewritable T5577 blue key fobs for writing after you read your source tag.
- Works for 125kHz RFID keyfobs and cards based on T5577 (supports EM4100, EM4305, TK4100, not UID/HID/encrypted cards).
Cons
- Only suitable for 125kHz tags, so buyers with other RFID types may waste time.
- Some users found it unclear whether a copy fully succeeded, even when it later worked.
- Reading and writing are short-range, so you need close placement (about 0 to 6 cm depending on tag type).
What buyers think
Buyer-review evidence is mixed, but the recurring themes are mostly about compatibility and day-to-day usability. Several reviews describe getting copies done quickly and repeatedly, with one-button style operation that feels straightforward. Other reviews report failure to copy multiple cards or fobs and describe the device as feeling inexpensive in hand. A limited number of comments also point to copy-result feedback being less explicit than some buyers expected. Overall, the evidence suggests performance varies by whether the source tag truly matches the supported 125kHz family, and expectations around success confirmation should be calibrated.
How this handheld RFID copier is meant to work
The workflow is simple: you power it on, read an existing 125kHz tag in the device’s close read zone, then place the source tag over the same read area to write the information into a blank rewritable T5577 card or key fob. The kit includes 10 T5577 rewritable key fobs (blue), and the device provides LED and buzzer feedback during read and write actions.
Key specifications that affect real-world use
Supported RFID types
This handheld is intended for 125kHz RFID keyfobs and compatible cards based on the T5577 chip ecosystem. It is described as supporting common 125kHz formats such as EM4100, EM4305, and TK4100. It is not intended for UID/HID and other encrypted card types. Before buying, confirm your key fob or card is in the correct 125kHz category, because that is the biggest determinant of whether cloning attempts will work.
Range and placement
The read and write experience depends on being within a short range. The device is listed with an approximate read distance of 0 to 6 cm, with different typical ranges for key fobs versus cards. Practically, that means close alignment and consistent positioning matter, especially during the read step and again during writing.
Power and portability
No computer connection is required. The copier runs on two AAA batteries, which need to be purchased separately. The unit is small and light enough to keep in a pocket or small bag for on-site duplication.
Pros and cons (buyer-fit version)
Who it’s best for
- Owners of 125kHz EM4100, EM4305, or TK4100-style key fobs who want an affordable, handheld way to create extra T5577-compatible copies.
- Buyers who prefer a simple two-button read/write process and want portability.
- People who can test compatibility first (for example, by checking tag type or using a separate reader/writer) before wasting blank fobs.
Who should avoid it
- Anyone with RFID cards or fobs that use UID/HID formats or encrypted schemes not supported by this device.
- Buyers expecting a more explicit “copy success” indicator than LED and buzzer feedback provide, especially if they want immediate certainty without trial and verification.
Buying checklist before you try to clone
- Confirm the source tag is 125kHz. If it is not, this kit will not be the right tool.
- Confirm the tag type (EM4100, EM4305, TK4100). Supported formats are specifically called out.
- Plan for close-range placement. The device expects the tag to be within a few centimeters.
- Use the included T5577 blanks for writing. The kit includes 10 rewritable key fobs intended for this workflow.
Verdict: is it worth it?
If your existing key fobs or cards are the correct 125kHz type (EM4100/EM4305/TK4100) and you want a compact, battery-powered handheld copier for making extra T5577 rewritable copies, this is the kind of tool that can get the job done quickly. If you are unsure of your tag format, buyer experiences suggest you may end up with failed attempts and a device that can feel more frustrating than useful. The safest approach is to verify compatibility first, then use the included blanks to test-read and write.
FAQ
What RFID frequencies and formats does it support?
It is designed for 125kHz RFID keyfobs and cards compatible with the T5577 workflow. Supported examples include EM4100, EM4305, and TK4100. It does not support UID/HID and other encrypted card types.
Will it work with any key fob, garage, or access card?
No. It will only work with compatible 125kHz tags in the supported family. If your fob uses a different RFID technology or an encrypted format, cloning attempts are likely to fail.
How far do I need to hold the key fob or card from the reader?
The listed read distance is approximately 0 to 6 cm, with different typical distances for key fobs versus cards. For best results, keep placement close and consistent during the read and write steps.
Does it require a computer or software?
No. It is designed for portable use with two AAA batteries (not included) and simple read/write controls.
Does it include blank key fobs or cards?
Yes. The kit includes 10 T5577 rewritable blue key fobs that you write after reading your source tag.
How do I know if the copy was successful?
The device uses LED and buzzer feedback during read and write actions, but some buyers note the feedback can feel unclear. If your priority is certainty, plan to test the newly written fob or card in the access device right away.
What if I can’t get it to work?
Most troubleshooting comes down to compatibility. Re-check that your source tag is truly 125kHz and matches a supported type. Also ensure close-range placement when reading and writing.
Specifications
| Product Title | RFID Handheld 125khz Key fob Smart Reader Writer Copier with 10pcs Writable T5577 Key Cards |
|---|---|
| Category | Office Products > Office Electronics > Copiers |
| Brand | Godely |
| Manufacturer | Godely |
| Item Weight | 4.2 ounces |
| Product Dimensions | 4.72 x 1.18 x 2.76 inches |
| Item model number | 2#key |
| Item Dimensions LxWxH | 4.72 x 1.18 x 2.76 inches |
Available variants
Size
- 2#key
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