Cudy AC 650Mbps USB WiFi Adapter for PC, 5GHz/2.4GHz Wireless Dongle, WiFi, USB Wireless Adapter for Laptop - Nano Size, Compatible with Windows XP / 7/8.x /10/11, Mac OS

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)

Edit: While my overall experience with the dongle as reviewed below was a 2 star experience, customer support and assistance was fantastic. For the price and knowing they stand behind their product, it is hard to go wrong with this adapter. This worked okay for a few months. But about 4 months in it totally died. It was relatively stable up to that point, but nothing to brag about which is expected for this price point. I would have liked to get at least a couple years out of it.

I've been using this little jewel for half a year now, and it picks up wifi on a new computer I bought that did not have wifi built in. I would buy it again.

Easy to setup and use. Works well with Linux. If you are using a laptop you may need to disable the built-in wifi adaptor in BIOS.

Works as it should

Good item works really well. Would buy again if needed

I Really like this cuddy USB Wi-Fi adapter! It was & is a lifesaver. I can't say enough good about this Wi-Fi adapter. I bought a more expensive one that didn't have a driver disc which I needed. The other one said it did but then when I received it it said go online to download the driver. I ordered this less expensive one which came with the disc driver which is what I needed. I originally bought it for my older back up laptop that I had to roll back due to a failing drive. I couldn't regain my window license on the computer anymore and I lost my internet functionality. Anyways this saved me. Right in the nick of time to. I plugged this in and ran the disk driver in my older laptop and I had internet functionality again to where I could download Chrome and access Windows. I even upgraded my computer to 16 GB of RAM at the time and this adapter handled the added speed no problem. My computer was lightning fast. This adapter is very durable. Also it fits in flush almost in any device. I have never been out of Wi-Fi range. Fact it picks up Wi-Fi signals farther away then my other computers so. And I still works well in my laptop desktop type computer cooling station with USB ports as well. I can't say enough good about this product, honestly it's been great compact and beat the other larger more expensive ones out that I bought prior. Its a Great Buy & Great price point. Got my old reverted Windows 7 without a Wi-Fi signal back online to where I could download Chrome and finish the classes that was taking at the time, just in time actually.