TP-LINK TL-WPA8631P KIT AV1200 priced at €135 taxes included. Comes with 2 adapters (the router adapter and the extender) and 2xRJ45 cables in white.
Speeds Upload / Download in Mbps. One PLC connected in one room and directly to router. Tested only LAN over RJ45, not the Wi-Fi from the PLCs (which I don't care since already have the router Wi-Fi):
- One PLC on top of each other using its mains socket: 254 / 100
- Computer connected to 5GHz Wi-Fi from router (PLC not involved): 295 / 262
- One PLC in the next room: 63 / 64
- One PLC in the farthest socket: 42 / 34
- One PLC in the dinning room: 38.8 / 22
Probably the cause of the PLC communication having so low performance, is due to circuit breakers being in the middle (magneto-thermal, differential, etc.). It's mentioned in point 2 of Quick Installation Guide:
"Plug the extender into a wall outlet on the same electrical circuit as the adapter.". But it't not clear what the manufacturer means by "same electrical circuit". They don't explain if they mean same electrical circuit under same breaker(s), which apparently does look like so.
The box states 1300 Mbps Powerline and 2x2 MIMO technology, with range up to 300 meters / 1000 feet over existing electrical wiring.
The 2 adapters are interchangeable with my already owned TL-WPA4230P and they pair out of the box between different models, so it's great if you want to have more connection points using the same brand.
This is really a handicap, since good installations have circuit breakers for each room or part of the house, making it slow to use wired PLCs across the house compared to the maximum speed you could get. Probably the MIMO technology is not as good as it should for consumer products, or they just should use different multiplexed frequencies to be more reliable.
I'd have to check over a long cable reel within "same circuit", to see if the speed as good as when the two adapters are on top of each other, but right now don't have one at hand.
Also there are other brands like AVM FRITZ!Powerline, which make high claims. However this brand is readily available in stock in stores to drive-by (unlike the TP-LINK), so have to be ordered online beforehand, or but it from Amazon or other websites.
UPDATE 04/12/2023: I've tried today the FRITZ! Powerline 1260 WLAN Set, containing 2xPLC with a price of €155.
- One PLC next to the router and the other in the dinning room: 33 / 32 Mbps.
- One PLC on top of each other: 162 / 136
Even worse than the TP-Link for downloads, and way more expensive. Both models are huge in size nonetheless. It's clear that no PLC performs well when there are circuit breaker in the middle. Maybe way too much resistance or inductance. More professional ones should have various types of simultaneous multiplexings.
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