The Basics:
DIR-2660: As mentioned at the onset of the review, the DIR-2660 format is more of the traditonal router we have seen for many years. A small rectangular box with external antennas and several Ethernet ports on the back. As you can see in the image below, the router has two antennas on the back and one on either side. There are small passive venting slots on either side up front, and along the front there are several status LEDs which indicate power, internet connectivity, 2.4 & 5 GHz network activity, and USB activity with a separate LED for 3.0 and 2.0.
The bulk of the connections are along the back side. Here you will find (1) 10/100/1000 WAN port and (4) 10/100/1000 LAN ports. On the left side of the Ethernet ports you will find a single USB 2.0 port. To the right of the Ethernet ports you will find the reset and WPS buttons, the DC power input, and the power switch.
The front edge of the router has some additional passive venting and in the right corner there is a USB 3.0 port. Flipping the unit over you will find a ton of passive vent openings, (4) rubber feet, (2) wall mounting holes, and a product label with default network info.
DAP-1820: This range extender is a gloss white oval shaped device. When viewed from the front you will see The D-Link name and model number and (3) Wi-Fi strength status indicators. Flanking either side are the antennas that follow the shape of the oval body. On the back you will find the 3 prong plug and product label with default network info. At the bottom you will find passive cooling vents, a 10/100/1000 Ethernet port, and a reset switch. The top has passive venting holes only.