I have a TP-Link N300 Powerline Gigabit Wi-Fi Kit , 2-Kit (2-Ethernet Ports) as shown on this amazon page.

I'm using it both for a wired connection and wifi.  For wired, on my network, a direct ethernet connection is ~100M, whereas I get around 30M on the powerline.

Is there a newer verison of this product that would give me better performance, or is this likely just a function of my home wiring?

The features I need are

• AC pass-through on the unit that takes input from my wired network
• ethernet port & wifi on the unit in my other room

Thanks