Cudy Wi-Fi 5 Nano USB Adapter AC650 MU-MIMO WPA3 Security WU650, WU650 | AC650 WiFi 5, 433+200 Mbps, micro Design, universal-serial-bus, WPA3, Win/macOS/Linux, Driver-Free Install, Beamforming

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

Don’t let the size fool you—this nano adapter gives you dual-band WiFi (2.4GHz + 5GHz) with up to 650Mbps total bandwidth. It's plug-and-play on most Windows systems (especially Win 10/11), and drivers for macOS are available via download. Once installed, performance is stable for web browsing, YouTube, Zoom, and light file transfers. Perfect for: Upgrading an old desktop without opening it Replacing a dead internal laptop card A plug-in option for Raspberry Pi or mini PCs Keeping in your EDC tech pouch for quick fixes What I Like: Tiny footprint—plug it in and forget it Dual-band flexibility = escape 2.4GHz congestion with a 5GHz option Stable connection for everyday tasks—web, email, streaming Works great for light gaming or Zoom calls, no dropouts in my testing What Could Be Better: Not ideal for heavy gaming or large file transfers—this isn’t WiFi 6 Range is limited due to nano size—best within 15-25 feet of the router Needs driver install on older versions of Windows or macOS (not plug-and-play everywhere)

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.

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 needed wifi for an older laptop that could no longer work with our newer router. This fixed the problem perfectly.

Inexpensive and works perfectly. Great product.

This is plug and play, stick it in a USB Slot in your laptop, or desktop. Then, find your wifi network and sign in. Personally, I like having a USB wifi adapter around for when I work on a laptop, or desktop. For instance, I was trouble shooting a wifi card inside a laptop. Used the USB adapter to help troubleshoot the laptop. It is a fantastic tool to have around. Did not need drivers, you shouldn't either.

This wasn't as plug and play as advertised for my Ubuntu Linux server, that being said, it wasn't hard to get the drivers downloaded and installed. The device works well, even though it isn't the fastest I've seen, it serves it purpose, which is a cheap, USB WiFi adapter.