sfx2000
Part of the Furniture
Need to check the exact ref on the switch but it's a 16 port GigE switch.
In the US - D-Link has the DES-1016, which is a 16 port Fast Ethernet part - so double check that one...
In the mean time - consider the Extreme AC to replace the older Extreme N - and you can keep that Extreme N around, as it's actually not bad at routing compared to the AC depending on which Extreme N model (A***) -
The 4th Gen/5th Gen N models are actually a bit better at routing due to the Marvell chipset on the main board compared to the Broadcom SoC in the AC model - just turn off the WiFi on the N, and put the AC's into Bridged Mode (how Apple refers as AP mode).