I have an older model Mac Pro that isn't WIFI: how do I update it?

Question

I have an older model of Mac Pro — the MacPro 1,1 — that isn’t wifi capable.a wifi network.
How do I update it to a connect it wirelessly to my router?
Would a PCIe card work?   If so, what would be the best sort?Should I, instead, get the relevant Airport base station?
Any help would be appreciated

Answer 1

Since the early Intel-based Mac Pro tower was available in a heavily customized version
with many extras as a BTO, and also lesser optioned models, the parts may be harder
to come by now after this passage of time, than when the MacPro1.1 first arrived.
Wi-Fi:    Optional AirPort Extreme card (802.11a/b/g/n)
Bluetooth:    Optional Bluetooth 2.0 + EDR
Modem:    Optional Apple USB Modem (MA034Z/A)
Fibre Channel:  Optional (MA462G/A, MA465G/A)
Internal RAID:   Optional Mac Pro RAID Card with 256 MB cache & 72-hour cache battery backup
An internal Wi-Fi or BT component likely had an external antenna such as the last model
PowerMac G5 with a similar all-metal aluminum case, as that does resist radio waves...
The answer for issues with last model PPC G5 aluminum, was an external antenna.
Not sure what model or part numbers were involved in any of the BTO or dealer installed options.
So if you use an expansion card idea, note the metal case of the early MacPro may block it.
You could use an Apple Express, and use it via Ethernet cable, to extend a network to MacPro.
PS: The two linked PCI card adapters are not familiar to me, nor are the complexities of this
series of early MacPro; other than they do have similar issues with wireless due to metal case.
Good luck & happy computing!
edited