# USB Wi‑Fi adapter Comfast CF-811AC — dual‑band 2.4GHz/5GHz, up to 650Mbps

**URL:** https://aio.lv/en/product--comfast-cf-811ac--4111917
**Data updated:** 2025-12-29 15:38 (EET)
**Category:** Cable Adapters & Converters
**Manufacturer:** Comfast
**Manufacturer code:** CF-811AC
**EAN:** 6955410014779
**Warranty:** 2 Years
**Availability:** Available for order
**Price:** 15.49 €
**Prices and availability valid until:** 2026-07-13 23:59
**Price without VAT (21%):** 12.80 EUR
**Can be purchased by legal entities:** Yes (invoice)
**Buy:** https://aio.lv/en/product--comfast-cf-811ac--4111917

## Delivery options

| Delivery method | Delivery time | Cost |
|---|---|---|
| Office pickup (2b. Kengaraga str., Riga, Latvia, LV-1063) | 22.06.2026 | free |
| Pickup points | 29.06.2026 | 1.99 EUR |
| Courier delivery to door | 29.06.2026 | 4.99 EUR |

## Summary description

Comfast CF-811AC is a USB Wi‑Fi adapter that provides dual‑band wireless connectivity on 2.4GHz and 5GHz with a combined throughput of up to 650Mbps. It connects to a computer via USB to add or upgrade Wi‑Fi capability for browsing, streaming and basic gaming. Compatible with standard USB ports; ideal for desktops and laptops needing improved wireless range and stability.

## Long description

Comfast CF-811AC is a compact USB Wi‑Fi adapter that adds or upgrades wireless connectivity for desktops and laptops. It supports dual‑band operation on 2.4 GHz and 5 GHz and delivers combined throughput up to 650 Mbps. The adapter is ultra‑small — only 7.5 mm protrusion from the USB port — and includes a built‑in 2 dBi antenna. It connects via USB 2.0 and is compatible with a wide range of Windows and macOS versions.
Advantages
The CF-811AC combines dual‑band support and a small form factor to improve reception and network stability on devices with weak or damaged Wi‑Fi modules. It supports AP mode to create a wireless hotspot for phones or tablets and offers hardware encryption compatibility with WEP, WPA and WPA2 standards. Broad OS support and plug‑and‑play installation via included driver CD make setup straightforward.
Suitable for
Upgrading laptops or desktops that lack modern Wi‑Fi or have poor reception
Creating a small Wi‑Fi hotspot using AP mode
Basic web browsing, video streaming and light online gaming
Users who need a portable, unobtrusive USB network adapter
Key specifications
Model: Comfast CF-811AC
Wireless bands: Dual‑band 2.4 GHz and 5 GHz
Maximum throughput: up to 650 Mbps (11ac 433 Mbps + 11n 200 Mbps / legacy rates)
Wireless standards: IEEE 802.11a/b/g/n/ac
Transmission power: 18 dBm
Encryption: WEP, WPA, WPA2, WPA-PSK, WPA2-PSK
Interface: USB 2.0
Antenna: built‑in 2 dBi
Compatibility: Windows 10/8.1/8/7/Vista/XP (32/64 bit), Mac OS 10.6–10.15
Size: 19.5 x 15 x 7.5 mm; color: black
Complete set: mini Wi‑Fi adapter, driver CD, manual
Warranty: 24 months
How to use
Insert the Comfast CF-811AC into an available USB port. If the operating system does not automatically install drivers, use the supplied driver CD or download the latest driver from the manufacturer. After driver installation select the appropriate SSID and enter the network password to connect. To enable AP mode, follow the software instructions provided in the manual or driver utility.
Usage recommendations
For best performance place the adapter in a USB port with minimal obstructions and avoid locations near large metal objects. Use the 5 GHz band for higher throughput at close range and 2.4 GHz for better range. Ensure drivers match your OS version to maintain stable operation.

## FAQ

### How much does the USB Wi‑Fi adapter Comfast CF-811AC cost, and is it available for purchase?

The price is 15.49 € (valid at the time of publication and already includes all taxes). The item is available for order — 5 pcs. are in stock, and you can place your purchase right now with delivery across Latvia and Europe or choose pickup at the Riga collection point. We offer favorable purchase terms, including the option to split the payment into convenient monthly installments. Availability and price are updated in real time, so we recommend placing your order in advance.

### If I order this product today, when will I receive my order?

If you place your order today, delivery will be as fast and convenient as possible. You will be able to pick up your order on 22.06.2026 at the Riga pickup point or choose delivery across Latvia and Europe. We carefully inspect every purchase and pack it securely for safe transportation.

### What payment options are available?

AiO.lv offers several payment methods: Bank transfer, Bank cards on-line, Apple Pay, Google Pay. All transactions are 100% secure and encrypted.

### Can this product be purchased for a company (with VAT)?

Yes. AiO.lv works with legal entities in Latvia and across Europe. The product price already includes VAT. For certain product categories, as well as for companies from other EU countries with a valid VAT number, a 0% VAT rate may apply. We issue the invoice immediately after the order is placed, support electronic BIS invoices, and automatically generate all necessary accounting documents. You can complete the purchase for a company online — simply select the company profile and choose bank transfer as the payment method during checkout.

### What is the warranty period?

All Comfast products come with an official 2 Years warranty. It covers all manufacturing defects and malfunctions that may occur during use. The warranty is valid at all authorized Comfast service centers and through AiO.lv

### Can the product be returned after purchase?

Yes, you can return the product within 14 days of purchase if you bought it as a consumer (not a legal entity). Returns are possible without giving any reason — the main condition is that the product retains its original appearance and full set of accessories. We will make the process as simple and convenient as possible: just contact our customer support team, and we will help you arrange the return.

### Where should I contact for warranty service?

For warranty-related questions you can contact the AiO.lv (SIA VSPRO) customer support team. More information about warranty service: https://aio.lv/en/warranty

## Image

https://aio.lv/img/cache/product/4111917/10508370_large.webp