Gigabyte R161-R12 Service Manual page 34

14 USB 3.0 Connector
15 TPM Connector
16 System Battery Cable Connector
17 PMBus Connector
18 M.2 slot (PCIe Gen3 x4, Support NGFF-2280, M-Key)
19 IPMB Connector
20 Proprietary Riser Slot
21 2 x 15 Pin HDD Back Plane Board Connector
22 PCIe x16 Slot
Motherboard Components - 34 -