Sierra, GTX970, Acer XB280HK - Now has G Sync Support? | tonymacx86.com
Refurbished: ASUS GeForce GTX 970 4GB GDDR5 PCI Express 3.0 SLI Support G- SYNC Support Video Card STRIX-GTX970-DC2OC-4GD5 GPUs / Video Graphics Cards - Newegg.com
NeweggBusiness - PNY GeForce GTX 970 4GB GDDR5 PCI Express 3.0 x16 SLI Support Video Card (G-SYNC Support) VCGGTX9704XPB