As the title states, I've been looking for a driver for this specific Realtek chip for my two G5's. I'm unable to find it anywhere and wonder if anyone has a driver that's functional for these adapters for Mac OS 10.5. I would get an airport card if one of the systems I was planning to use it on wasn't a G5 quad, which I Haven't seen an airport card for on ebay either (I think?) and besides, these would be faster anyway if I could get them to work.
The RTL8811CU is an 802.11ac card. What we’ve learnt over the last little while on here is the Realtek 802.11ac cards, adapters, and so on
did, for a very limited span (up until around 2013), provide drivers for 10.5, but what their documentation elided to mention was they wrote the drivers only for Intel Macs. I have an RTL8812BU USB dongle which I’d hoped to use on an iBook G4, but exhausted all avenues after discovering the “10.5” drivers were never written for PowerPC Macs or as Universal Binaries.
If you can track down one of the many 802.11n USB dongles,
or you happen to have a PCI slot (not PCIe) free, there is an 802.11n tri-antenna (MIMO) card known as
Edimax EW-7728ln which I’ve used for a couple of years on my G5. (I’ve since taken it out since I have the router next to the G5 and can use the LAN instead). But it does work pretty well for that application — probably more so than the reception and transmitting power of a USB dongle counterpart.
No, this isn’t an 802.11ac solution, but driver support for 802.11ac adapters on legacy gear is mostly confined these days to anything which at least is running Mavericks.