16GB of 1600 MHz LPDDR3 RAM and a 1TB Fusion Drive. These mini-computers also support dual monitor displays at 2560 x 1600 pixels. For networking, there is 802.11 ac Wi-Fi, backward compatible with 802.11 a/b/g/n, and Bluetooth 4.0 support.
Was bought to replace a malfunctioning 2012 Mini, so am very familiar with this model. This 2014 model came with optimized memory and storage so well meets my needs. Cosmetically, it's near-new. The one-year refurbished by eBay is much appreciated, and factored into my purchase decision.
I am using this as a file server for the Channels DVR serice to store recorded OTA shows. It will have plenty of room to backup/store other files from my local devices. It worked out of the box and upgraded to the latest Mac OS that it will support (Monterey).