ALFA ARS-NT5B Dual Band 5 dBi RP-SMA Wi-Fi antenna for 802.11ac 802.11n


ALFA ARS-NT5B is a 5 dBi omni-directional dual band Wi-Fi antenna for use with 802.11ac and 802.11n/g/b networks. It can receive and transmit on both the 2.4 GHz and 5 GHz Wi-Fi bands. This can be used with any brand Wi-Fi adapter or wireless router that uses RP-SMA antenna ports. It can be used with dual band routers and adapters, or single band. It is compatible with all Wi-Fi standards including 802.11a, b, g, n and the newest standard 802.11ac. This is the replacement stock antenna that comes with some ALFA adapters like AWUS036AC and AWUS036ACH. It can also be used on other brand equipment including compatible ASUS 802.11ac routers.

While most Wi-Fi adapters with external antenna ports have RP-SMA connectors, some routers use RP-TNC connectors, so be sure to check what connector type your device has before buying, or email our team with your brand/model router or adapter and we can confirm compatibility for you.

This is a low cost way to replace a missing Wi-Fi antenna, or upgrade from a lower gain antenna. It is also a great option for those in the market for a dual band antenna. It is 7 and 3/4 inches long. No software is needed, simply attach this antenna to your compatible Wi-Fi adapter or router's external antenna port.

Specifications :

Part/Model #: ARS-NT5B
Country of OriginTaiwan
Manufacturer : 
Alfa Network Inc.

Warranty & Support:
Complimentary Telephone and Email/Live Chat Support (Click Here)

Sales tax is required in many states and will be added at checkout if applicable to your delivery state. Tax exempt forms can be sent to our support department.

Return Policy: This item can be returned for refund within 30 days of receipt. Because range can vary greatly based on your environment, if you are not sure a particular product will meet your range needs please contact us before buying. Orders with free shipping selected will incur a 10% restocking fee to help us cover the original shipping cost unless the item is defective or different from the advertisement. Any expedited shipping charges paid, including return shipping, are non-refundable. Items must be returned the way they were received, in new or like-new condition, with all pieces, documentation, and retail packaging (if applicable) included. For bulk purchases, see our bulk purchase return policy here.

Customer Reviews

Based on 2 reviews
Mike Bast
saved my Butt!!!

You guys did save me...I went to our summer home with my CPU and had no Antenna for wifi...couldnt find one in this small town and so I fould you had what I needed. The customer service was supper nice and very concerned and got our purchase out promply so I could continue to work!!

Alun Goodger

Some higher dBi antennas seem like they have been "pushed a little too far" and as such compromises have often been made on characteristics such as VSWR over the frequency range supported by the antenna. The ALFA ARS-NT5B gives quite the opposite impression, its a very stable, confidence inspiring dual band antenna that genuinely works very well. Its my go to antenna for indoor dual band wifi use.