Dell OptiPlex 3240 Series Intel Chipset H110 Socket LGA1151 All-In-One Desktop Motherboard 4075X 04075X CN-04075X.
Chipset: Intel H110
Socket: Intel LGA1151
Max Supported Memory: 16GB
Number of Memory Slots: 2
Memory Type: DDR3 SDRAM
Wireless Lan Support: Intel Wireless 8260 802.11n/ac
Network/Communications: Intel 10/100/1000Mbps Ethernet
Audio: Intel High Definition Audio with Waves MaxxVoice Pro
Input/Output Ports: 4x USB 3.0, 2x USB 2.0, 1x HDMI; 1x DisplayPort, 1x RJ-45, 1x Line-out connector, 1x Global headset port, 1x SD Card Reader
Type: All-In-One Desktop Motherboard