ASUS PCE-AC51 802.11ac WiFi Adapter
| CM4 Functionality | Pi 5 Functionality | Driver Required? | More Info |
|---|---|---|---|
| Currently Testing | Untested | Maybe | GitHub Issue |
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Description and Notes
This WiFi card supports 802.11ac, and has drivers available for Linux and Windows, at least, but I have had trouble getting these drivers running (or even installable) on the Pi.
Many of the forked Linux drivers won’t compile on ARM64 or ARMv7, so I have also tried using the card with a recompiled Linux kernel following my cross-compile guide, with the following module selected via menuconfig:
Device Drivers
> Network device support
> Wireless LAN
> Realtek rtlwifi family of devices
> Realtek RTL8821AE/RTL8812AE Wireless Network Adapter
This seems to load the kernel module (rtl8821ae), but the card won’t work as in the dmesg logs I get:
$ dmesg | grep rtl
[ 5.122777] rtl8821ae 0000:01:00.0: enabling device (0000 -> 0002)
[ 5.181119] rtl8821ae: Using firmware rtlwifi/rtl8812aefw.bin
[ 5.182443] rtl8821ae 0000:01:00.0: Direct firmware load for rtlwifi/rtl8812aefw.bin failed with error -2
[ 5.183980] rtlwifi: Loading alternative firmware rtlwifi/rtl8821aefw.bin
[ 5.184083] rtl8821ae: Using firmware rtlwifi/rtl8812aefw_wowlan.bin
[ 5.184215] rtl8821ae 0000:01:00.0: Direct firmware load for rtlwifi/rtl8812aefw_wowlan.bin failed with error -2
[ 5.184337] rtlwifi: Loading alternative firmware rtlwifi/rtl8821aefw.bin
[ 5.189198] rtl_pci: Cannot allocate RX ring
[ 5.189218] rtl_pci: tx ring initialization failed
[ 5.189228] rtl_pci: Failed to init PCI
[ 5.189357] rtl8821ae: probe of 0000:01:00.0 failed with error -12
See the linked GitHub issue for the latest status on this card.
Buy this Card
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ASUS PCE-AC51 802.11ac WiFi Adapter