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Our Business Identity & Customer Commitment We are committed to maintaining full transparency in our business practices to ensure a seamless and trustworthy shopping experience for all our customers. Below, we outline key aspects of our operations and policies: ..
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Brand Name: comfast
Transmission Rate: 10/100Mbps
Type: WireLess
Kind: External
Origin: Mainland China
Hign-concerned Chemical: None
Interface Type: USB3.0
Wi-Fi Supported Frequency: 2.4G & 5G
Wireless Protocol: 802.11n
Wireless Protocol: 802.11ac
Wireless Protocol: 802.11a/g
Adapter Socket: USB
Applicable Network Type: ETHERNET
Lan Transmission Rate: ETHERNET
Application: Desktop
Package: Yes
Certification: CE
Transmission Speed: 600 Mbps
Model Number: CF-811AC/CF-812AC
Choice: yes
650M-1300Mbps 2.4G&5.8GHz USB Wireless Wifi Adapter High speed Network Card RTL8811CU/RTL8812BU Dual Band 802.11AC Antenna For Laptop Desktop
1200Mbps CF-812AC Specifications:






Q&A
Q1: Why PC/Laptop can not recognize the adapter after I insert it?
A: Please confirm whether the adapter is correctly inserted into the USB port, or try other USB port.
Q2: My PC/Laptop don't support CD driver, how do I install the driver?
A: Please kindly download the driver from COMFAST Official Website or contact Customer Service.
Q3: Why do I get a driver error when I install the driver?
A: Please check whether the driver you installed is corresponding to your device's system.
Q4: After the driver installation is completed, the adapter cannot be searched?
A: Restart the computer after installation.
Q5: Does this adapter support TV/ TV Box?
A: Sorry, this device will only work when plugged into supported systems. Other devices such as TV, TV BOX, Printer, etc. which have USB ports, they don't have the necessary drivers to support this adapter.
Q6: Why the wireless speed of adapter is lower than my router?
A: The wireless speed is affected by many factors, such as distance, obstacles, interference, etc. Please contact customer service if you have any doubts.
Q7. My PC/Laptop don't support 5GHz, can it connect to router's 5G WiFi by using this adapter?
A: Yes, support.
If the above Q&A cannot solve your problem, please feel free to contact us!
| Product Assurance | We take great care in ensuring that all our products meet quality standards and are packaged securely for safe delivery. |
| Requirement Analysis | performance benchmarks |
| Manufacturing & Production Control | Implemented quality checks during production |
| Compliance | Keeping up with evolving regulations. |
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