How to Find the Serial Number (S/N) on Your TP-Link Device
Your TP-Link serial number (S/N) is a unique identifier printed on every TP-Link device. You may need it for product registration, warranty claims, or RMA requests. Knowing how to do a TP-Link SN check is handy. TP-Link serial numbers are 11, 12, or 13 hexadecimal digits. There are two places to find and check your serial number: on the product box or on the label attached to the device itself.
Key Takeaways
- Every TP-Link device has a unique serial number (S/N), an 11-, 12-, or 13-digit hexadecimal code required for product registration, warranty claims, and RMA requests.
- There are two places to find your TP-Link serial number: on the product box or on the label attached to the device itself.
- On most devices, the label is on the bottom or back of the device, and the serial number is labeled "S/N" or "Serial Number."
- For Tapo Robot Vacuums, the serial number is not on the bottom label. You need to remove the dustbin or water tank to find it.
- Some products, including smart bulbs, antennas, and certain mini routers and wireless adapters, do not have a label on the device itself. For these, the serial number is only on the box.
Every TP-Link product has a unique serial number (S/N), which is required when registering on the website or applying for an RMA case number. TP-Link serial numbers are 11, 12, or 13 hexadecimal digits.
This article will guide you to find the serial number of your TP-Link device.
Where to Find Your TP-Link Serial Number
Method 1: Look over the box
You can find the serial number on the device’s box.
We take the Tapo RV20 as an example:

Note: For some products, smart bulbs like LB xxx, Antennas, some Mini routers (like TL-WR702N), or some wireless adapters (like Archer T1U, Archer T2U, Archer T2U Plus, Archer T3U, Archer T3U Plus, Archer T4U V1&V2, TL-WN723N, TL-WN725N, TL-WN823N, etc.), there is no label on the product itself.
Method 2: Look over the device label
You can find the serial number on the device’s label.
For most products, turn the device over to find a label on the back. It is usually labeled “S/N:” or marked as “Serial Number”.
We take the Deco as an example:

Note: The Tapo Robot Vacuum's serial number is not on the bottom label; you will need to remove the dustbin or water tank to find it.
- For Tapo RV20/RV30/RV20 Max/RV30 Max

- For Tapo RV50 Series

Get to know more details of each function and configuration please go to the Download Center to download the manual of your product.