Cudy AC650Mbps USB WiFi Adapter for PC, 5G/2.4G Wireless Dongle, WiFi, USB Wireless Adapter for Laptop - Nano Size, Compatible with Windows XP/7/8/8.1/10/11, MacOS 10.5~10.13, Linux Kernel 4.19~5.x

Haven't tested whether it gets the advertised speeds because I don't really need those and likely never will. This is connected to a Banana Pi M4 Zero to act as the upstream wifi (internal wifi is configured as hotspot/AP). For that purpose, it works great. Plug and play and was immediately detected. Seems to be using a Realtek chipset internally. Linux bananapim4zero 6.12.58-current-sunxi64 #3 SMP Thu Nov 13 20:34:41 UTC 2025 aarch64 aarch64 aarch64 GNU/Linux Bus 003 Device 002: ID 0bda:c811 Realtek Semiconductor Corp. 802.11ac NIC Here's the output if "iw phy" since these are nice to know before buying in case you need specific wireless capabilities for your project. Wiphy phy1 wiphy index: 1 max # scan SSIDs: 9 max scan IEs length: 2304 bytes max # sched scan SSIDs: 0 max # match sets: 0 Retry short limit: 7 Retry long limit: 4 Coverage class: 0 (up to 0m) Device supports AP-side u-APSD. Supported Ciphers: * WEP40 (00-0f-ac:1) * WEP104 (00-0f-ac:5) * TKIP (00-0f-ac:2) * CCMP-128 (00-0f-ac:4) * CMAC (00-0f-ac:6) * GCMP-128 (00-0f-ac:8) * GCMP-256 (00-0f-ac:9) * CCMP-256 (00-0f-ac:10) * GMAC-128 (00-0f-ac:11) * GMAC-256 (00-0f-ac:12) * CMAC-256 (00-0f-ac:13) Available Antennas: TX 0 RX 0 Supported interface modes: * IBSS * managed * AP * monitor * P2P-client * P2P-GO Band 1: Capabilities: 0x1862 HT20/HT40 Static SM Power Save RX HT20 SGI RX HT40 SGI No RX STBC Max AMSDU length: 7935 bytes DSSS/CCK HT40 Maximum RX AMPDU length 65535 bytes (exponent: 0x003) Minimum RX AMPDU time spacing: 16 usec (0x07) HT Max RX data rate: 150 Mbps HT TX/RX MCS rate indexes supported: 0-7 Bitrates (non-HT): * 1.0 Mbps * 2.0 Mbps * 5.5 Mbps * 11.0 Mbps * 6.0 Mbps * 9.0 Mbps * 12.0 Mbps * 18.0 Mbps * 24.0 Mbps * 36.0 Mbps * 48.0 Mbps * 54.0 Mbps Frequencies: * 2412.0 MHz [1] (16.0 dBm) * 2417.0 MHz [2] (16.0 dBm) * 2422.0 MHz [3] (16.0 dBm) * 2427.0 MHz [4] (16.0 dBm) * 2432.0 MHz [5] (16.0 dBm) * 2437.0 MHz [6] (16.0 dBm) * 2442.0 MHz [7] (16.0 dBm) * 2447.0 MHz [8] (16.0 dBm) * 2452.0 MHz [9] (16.0 dBm) * 2457.0 MHz [10] (16.0 dBm) * 2462.0 MHz [11] (16.0 dBm) * 2467.0 MHz [12] (16.0 dBm) (no IR) * 2472.0 MHz [13] (16.0 dBm) (no IR) * 2484.0 MHz [14] (disabled) Band 2: Capabilities: 0x862 HT20/HT40 Static SM Power Save RX HT20 SGI RX HT40 SGI No RX STBC Max AMSDU length: 7935 bytes No DSSS/CCK HT40 Maximum RX AMPDU length 65535 bytes (exponent: 0x003) Minimum RX AMPDU time spacing: 16 usec (0x07) HT Max RX data rate: 150 Mbps HT TX/RX MCS rate indexes supported: 0-7 VHT Capabilities (0x03c00022): Max MPDU length: 11454 Supported Channel Width: neither 160 nor 80+80 short GI (80 MHz) +HTC-VHT VHT RX MCS set: 1 streams: MCS 0-9 2 streams: not supported 3 streams: not supported 4 streams: not supported 5 streams: not supported 6 streams: not supported 7 streams: not supported 8 streams: not supported VHT RX highest supported: 434 Mbps VHT TX MCS set: 1 streams: MCS 0-9 2 streams: not supported 3 streams: not supported 4 streams: not supported 5 streams: not supported 6 streams: not supported 7 streams: not supported 8 streams: not supported VHT TX highest supported: 434 Mbps VHT extended NSS: not supported Bitrates (non-HT): * 6.0 Mbps * 9.0 Mbps * 12.0 Mbps * 18.0 Mbps * 24.0 Mbps * 36.0 Mbps * 48.0 Mbps * 54.0 Mbps Frequencies: * 5180.0 MHz [36] (13.0 dBm) * 5200.0 MHz [40] (13.0 dBm) * 5220.0 MHz [44] (13.0 dBm) * 5240.0 MHz [48] (13.0 dBm) * 5260.0 MHz [52] (13.0 dBm) (radar detection) * 5280.0 MHz [56] (13.0 dBm) (radar detection) * 5300.0 MHz [60] (13.0 dBm) (radar detection) * 5320.0 MHz [64] (13.0 dBm) (radar detection) * 5500.0 MHz [100] (13.0 dBm) (radar detection) * 5520.0 MHz [104] (13.0 dBm) (radar detection) * 5540.0 MHz [108] (13.0 dBm) (radar detection) * 5560.0 MHz [112] (13.0 dBm) (radar detection) * 5580.0 MHz [116] (13.0 dBm) (radar detection) * 5600.0 MHz [120] (13.0 dBm) (radar detection) * 5620.0 MHz [124] (13.0 dBm) (radar detection) * 5640.0 MHz [128] (13.0 dBm) (radar detection) * 5660.0 MHz [132] (13.0 dBm) (radar detection) * 5680.0 MHz [136] (13.0 dBm) (radar detection) * 5700.0 MHz [140] (13.0 dBm) (radar detection) * 5720.0 MHz [144] (disabled) * 5745.0 MHz [149] (13.0 dBm) * 5765.0 MHz [153] (13.0 dBm) * 5785.0 MHz [157] (13.0 dBm) * 5805.0 MHz [161] (13.0 dBm) * 5825.0 MHz [165] (13.0 dBm) * 5845.0 MHz [169] (disabled) * 5865.0 MHz [173] (disabled) * 5885.0 MHz [177] (disabled) Supported commands: * new_interface * set_interface * new_key * start_ap * new_station * set_bss * join_ibss * set_pmksa * del_pmksa * flush_pmksa * remain_on_channel * frame * set_channel * connect * disconnect WoWLAN support: * wake up on anything (device continues operating normally) software interface modes (can always be added): * monitor interface combinations are not supported Device supports SAE with AUTHENTICATE command Device supports scan flush. Device supports randomizing MAC-addr in scans. max # scan plans: 1 max scan plan interval: -1 max scan plan iterations: 0 Supported TX frame types: * IBSS: 0x00 0x10 0x20 0x30 0x40 0x50 0x60 0x70 0x80 0x90 0xa0 0xb0 0xc0 0xd0 0xe0 0xf0 * managed: 0x00 0x10 0x20 0x30 0x40 0x50 0x60 0x70 0x80 0x90 0xa0 0xb0 0xc0 0xd0 0xe0 0xf0 * AP: 0x00 0x10 0x20 0x30 0x40 0x50 0x60 0x70 0x80 0x90 0xa0 0xb0 0xc0 0xd0 0xe0 0xf0 * AP/VLAN: 0x00 0x10 0x20 0x30 0x40 0x50 0x60 0x70 0x80 0x90 0xa0 0xb0 0xc0 0xd0 0xe0 0xf0 * P2P-client: 0x00 0x10 0x20 0x30 0x40 0x50 0x60 0x70 0x80 0x90 0xa0 0xb0 0xc0 0xd0 0xe0 0xf0 * P2P-GO: 0x00 0x10 0x20 0x30 0x40 0x50 0x60 0x70 0x80 0x90 0xa0 0xb0 0xc0 0xd0 0xe0 0xf0 Supported RX frame types: * IBSS: 0xd0 * managed: 0x40 0xb0 0xd0 * AP: 0x00 0x20 0x40 0xa0 0xb0 0xc0 0xd0 * AP/VLAN: 0x00 0x20 0x40 0xa0 0xb0 0xc0 0xd0 * P2P-client: 0x40 0xd0 * P2P-GO: 0x00 0x20 0x40 0xa0 0xb0 0xc0 0xd0 Supported extended features: * [ RRM ]: RRM

Inexpensive and works perfectly. Great product.

I have an old Desktop in a room across the house that I originally had a decent USB 3 WiFi dongle in, which broke due to children. On a whim and going for cheap, I purchased this dongle to give it enough life for basic Internet use. For a simple quick fix for WiFi on a device, it's a cheap and quick solution. Windows 11 24H2 supported it without having an Internet connection, so whatever drivers are bundled with Windows proved to work enough to get online. I plugged it in, and WiFi was available. Even after connecting, I didn't have to update the drivers. Speeds seem acceptable for such a small device within this price range. For it's size, I was plesently surprised that it was able to reach the AP several rooms away. I was worried that due to the antenna being in a small compact area it would be less capable, and I am sure it is, but not noticable.

Works great and is very fast, great product!

Bought the CUDY for a Linux (Xubuntu) machine. Plugged it in and the Xubuntu was online minutes later. Cant beat the simplicity and reliability at this price point. Maybe others will question signal strength or even heat produced by dongle, but I've not found reason to even worry.

I like these for troubleshooting WiFi. They work right out of the box with no driver installation on both Windows and Linux. They are not the fastest connection you’ll most likely see 250mps on a fast connection. Good for people who need a solution for a laptop with a bad network card or a desktop with no room for a pcie card.

Adapter does not work and causes an issue in both of my PC's. Once it's put in it starts to work and connect to wifi, but then it goes into a restart loop. It says the system encountered a problem and needs to restart, then starts gathering data and restarts. Then does the same thing again and again. I had to power it down myself once as it wouldn't fully start back up. Highly UNrecommended.

Quick next day delivery - work out the box - no installation requirements, just plug in and immediately connects to wifi. This was used on my Dell Desktop Computer.