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Alfa AWUS1900 AC1900 Dual-Band USB 3.0 WiFi Adapter, 1300 Mbps, 4x 5 dBi Antennas

Product name

Alfa USB Adapter AWUS1900

Warranty

?
12 months

Manufacturer part number

AWUS1900

EAN

4718050305209

Brand

  • AC1900 dual-band USB WiFi adapter delivers up to 600 Mbps on 2.4 GHz and 1300 Mbps on 5 GHz for smooth streaming, fast downloads, HD video chat, and responsive gaming on compatible networks.
  • USB 3.0 interface helps reduce bottlenecks and keeps high-speed wireless transfers moving, making the AWUS1900 a strong choice for bandwidth-heavy PC connectivity and stable everyday use.
  • Four detachable 5 dBi dual-band antennas with RP-SMA female connectors improve range and signal penetration, helping reduce dead zones and maintain stronger WiFi in larger rooms and around obstacles.
  • Powered by the Realtek RTL8814AU chipset and supports IEEE 802.11a/b/g/n/ac plus 20/40/80 MHz channels for flexible, reliable wireless performance across 2.4 GHz and 5 GHz networks.
  • Compatible with Windows XP to 10, macOS 10.5 to 10.14, and Linux; supports WEP, WPA/WPA2, WPA-PSK/WPA2-PSK, and WPS for secure setup across mixed environments.
44.19 
out of stock
?
44.19 
out of stock
?

Expected arrival
?

arrival date unknown

Detailed description

Dual-Band Wireless Adapter

The AWUS1900 is an AC1900 dual-band wireless adapter built around the RTL8814U chipset. It supports IEEE 802.11a/b/g/n/ac networking across 2.4 GHz and 5 GHz, giving a compatible computer access to networks using any of these supported wireless standards. Users can select either supported band when the local network provides both. Listed data rates reach up to 600 Mbps with 802.11n and 1300 Mbps with 802.11ac. These figures describe supported link capabilities rather than guaranteed application speed, while indicating the adapter’s suitability for data-intensive tasks on compatible networks. Support for 20, 40, and 80 MHz channel widths lets it operate with different network configurations, from narrower to wider channel settings supported by the network.
The adapter is intended for activities including HD streaming, video chat, email, web browsing, file transfers, and multiplayer gaming. Security options include 64/128-bit WEP, WPA with TKIP and IEEE 802.1X, WPA2 with AES and IEEE 802.1X, and WPA Mixed mode, supporting compatibility with networks configured for these methods. Power and WLAN indicators provide a visual check of device status and wireless activity. Operating-system support covers Windows 2000, XP, Vista, 7, 8, and 10, Mac OS X 10.7 through 10.12, and Linux. This software range allows the AWUS1900 to work across several supported platform families, including computers that continue to use older listed Windows or Mac releases in mixed environments.

Hardware and Placement

Four external detachable antennas form the AWUS1900’s radio hardware, with each supplied antenna rated at 5 dBi. RP-SMA female antenna connections secure them and allow removal when the unit must be packed or transported. The external arrangement leaves the antenna elements accessible during setup, so placement can account for the complete antenna assembly. A USB 3.0 connector links the unit to the host computer, while the included USB 3.0 cable permits placement away from the computer instead of fixing the device directly at a port. This cabled connection gives the user more freedom during installation to choose a convenient location for the adapter around the host system.
Placement accessories include a screen clip adapter and suction cup, providing two supplied methods for securing the unit near a display or on a suitable smooth surface. The enclosure measures 62 x 85.3 x 24 mm and weighs 60 g, keeping it compact for desk-side or portable setups without requiring a large mounting area in the workspace. It operates from −10 °C to 60 °C and is specified for storage humidity from 5% to 98% without condensation, defining the environmental limits to consider when selecting a location. The package also contains a driver DVD, quick installation guide, ALFA sticker, and warning card, bringing the principal connection, mounting, and setup items together.

Compatible products

AWUS036AC
26.87 
AWUS036ACM
out of stock
32.14 
AWUS036ACS
17.66 

Specifications

Wireless Network

Generation

WiFi 5
Standards

802.11n/ac
MIMO

2.4GHz 2x2, 5GHz 2x2
Frequency

2.4GHz, 5GHz
2.4GHz Radio Rate

600 Mbps
5GHz Radio Rate

1.3 Gbps

Antenna

Antenna Design

Omni
Wireless Antenna Frequency Range & Gain

2.412 - 2.472 (GHz) 5 (dBi), 5.150 - 5.825 (GHz) 5 (dBi)
Beamwidth

360 °

Connectors

RF Connectors

(4) RP-SMA Female

Interfaces

USB Ports

(1) USB-A 3.0

System Specification

Chipset

RTL8814AU
Output Power

Up to 23 dBm

Physical Parameters

Material

Plastic
Dimensions

85.3 x 62 x 24 mm
Weight

0.06 kg
Operating Temperature

-10 °C to 60 °C
Environment

Indoor

Reviews and ratings

Product rating

green-stargreen-stargreen-stargreen-stargreen-star
4.9
/ 5
9 review
9 review
9 review
green-stargreen-stargreen-stargreen-stargreen-star
Armany9/16/2025
Verified & Collected by Trustpilot
1234567890
green-stargreen-stargreen-stargreen-starstar
Dmytro6/6/2025
Verified & Collected by Trustpilot
Все хорошо, но дальность приема сигнала, оставляет желать лучшего. Плюс довольно громоздкий.
green-stargreen-stargreen-stargreen-stargreen-star
Volodymyr8/21/2024
Verified & Collected by Trustpilot
The best wifi adapter of all i tested. Very big range
green-stargreen-stargreen-stargreen-stargreen-star
John12/17/2023
Verified & Collected by Trustpilot
I like it.
green-stargreen-stargreen-stargreen-stargreen-star
Sergejs8/19/2023
Verified & Collected by Trustpilot
Adapter is super,delivery the best-3 days.
green-stargreen-stargreen-stargreen-stargreen-star
Samuel6/26/2023
Verified & Collected by Trustpilot
Best Wi-Fi, im use with kali Linux.
green-stargreen-stargreen-stargreen-stargreen-star
AV2/9/2023
Verified & Collected by Trustpilot
Good enough
green-stargreen-stargreen-stargreen-stargreen-star
Roman12/26/2022
Verified & Collected by Trustpilot
Excellent speed
green-stargreen-stargreen-stargreen-stargreen-star
Дмитрий10/13/2022
Verified & Collected by Trustpilot
На Виндоус 11 AWUS1900 определяется сразу, даже не нужно специально устанавливать драйвера, они уже имеются в составе ОС. Работает адаптер на Виндоус 11 стабильно, не отваливается, в отличии от AWUS036ACH. По чувствительности приёма различий между AWUS1900 и AWUS036ACH не заметил. В WIFISLAX также определяются сразу оба адаптера, без ручной установки драйверов, причем 036ACH в этой ОС уже не отваливается в отличии от Виндоус 11. On Windows 11, AWUS1900 is detected immediately, you don’t even need to specifically install drivers, they are already included in the OS. The adapter works on Windows 11 stably, does not fall off, unlike AWUS036ACH. In terms of reception sensitivity, I did not notice any differences between the AWUS1900 and AWUS036ACH. In WIFISLAX, both adapters are also detected at once, without manually installing drivers, and 036ACH in this OS no longer falls off, unlike Windows 11.

Often purchased together

APA-M25
13.60 
AWUS036ACM
out of stock
32.14 
AWUS036ACH-C
45.57 
AWUS036ACS
17.66