TECHTOO WiFi Antenna Dual Band 7dBi 2.4GHz/5.8GHz with RP-SMA Connector for Wireless Network Router USB Adapter PCI Card IP Camera DJI Phantom Wireless Range Extender FPV UAV Drone

I have over 25 years of professional, enterprise-level (big company) IT experience and specialize in security, data centers, networking, wireless (wifi), mobile devices, and desktop/laptop equipment provisioning and support (I.e.., I manage multiple IT departments for well-known companies). With more and more IoT things (wifi lightbulbs and switches), I was looking for upgraded antennas to replace the stubby little ones on a high-end wifi setup (4x4 MIMO, 802.11AC, expensive business-grade brand- had to use adapters for these antennas to screw in). Before swapping out the stubby antennas, I walk around taking measurements with a Samsung S9 Plus, measuring speed and wireless signal strength at various challenging places inside and outside my house (2000 sq ft on a 6000 sq ft lot; very typical mid-70's southern CA home). --Tests were repeated to ensure accuracy-- My internet service is Frontier fiber with 500Mb up and down; the Samsung S9+ @ 3 feet away will max out around 275Mb/s. Here's what I found... (all test are at the 5Ghz band; it's much cleaner (less noisy) and faster than 2.4Ghz, but the also weakest signal option).Pic #1, original antennas: Worst-case location - Outside, far front corner, end of driveway by the street: Poor signal (about -84 dBm) with 7.89Mb down/3.37Mb upload.Pic #2, Techtoo 7Dbi antennas: Same Worst-case location - Outside, far front corner, end of driveway by the street: Poor signal (about -81/82 dBm)- HUGE speed improvement- 28.8Mb down (365% increase)/ 10.2Mb upload (300% increase).Pic #3 shows the wireless signal strength; the top 2 "Hunt" listings are mine.In every location I checked, the signal "strength" remained the same, or improved only very slightly (1-3 DBi); not enough to make any material difference. HOWEVER, the *quality* of the signal improved dramatically; the speeds were 2-3x higher across the board and the connection was rock solid.(NOTE- I am an IT professional, not an electrical engineer; these tests were meant to be accurate and repeatable without going totally overboard).

I bought these stub antennas to modify a BT extender box for the internet. I replaced the shorted lower gain antennas with a couple of sma sockets. and a pair of these higher gain antennas (7dBi claimed) and increased the extender's range to 45 m down a garden. With all antenna systems, the result depemds on how you use the antnnas. In this case they worked well with a high field at a long distance. I was not able to check the 5 GHz performance with this simple BT extender (BT-300). A Good buy!

I have a 2 floor house with a basement. My router is located in the basement and my bedroom PC is located pretty much as far away as possible at the opposite corner of the second floor. I use an internal PCI-Express 2.4/5 Ghz WiFi receiver card with three antennas, so I ordered an extra package of these to replace all three antennas and give me a spare.The result is that I went from 0-1 bars of 5 GHz signal strength with 10-25 MB/s transfer speed from other PCs on my home network to 2 consistent bars of signal strength and 30-40 MB/s transfer speed from other PCs on my home network. Internet speed tests on my 120 Mbit connection used to get up to around 115 Mbit/s or so and then gradually drop off to settle around 80-90 Mbit/s. They now cap out at 120 Mbit/s and stay there. I didn't check my before/after packet stats but it's probably safe to say I'm dropping fewer packets now as well.Unfortunately my router's antennas are all permanently connected or else I'd try replacing them too. I think if I'd been able to replace those as well I might've been able to get even better results, maybe 45+ MB/s or so.My router is an Asus RT-AC66U_B1 and my PCI-E WiFi card is a Rosewill RNX-AC1900PCE I got from NewEgg, which is actually a rebranded (and 1/2 price) TP-LINK Archer T9E. I highly recommend the Rosewill NIC or its TP-Link equivalent if you get get it at a good price. I've only had it a week or so but it's been absolutely reliable with the TP-Link Archer T9E driver installed as reviewers on NewEgg recommended. Maybe the Rosewill driver is fine too, I never even tried it.

Purchased for a motherboard with built-in wifi/bluetooth. Worked just fine, considerable extension of range compared to not having any.

The product performs very well as stated. The original antennae used on the portable wi-fi adaptor broke and had ordered this product. The antennae attached easily, looks robust and is performing very well. Highly recommended.