Best Buy: Asus Desktop Motherboard AMD 990FX Chipset Socket AM3+ SABERTOOTH 990FX
Amazon.com: Desktop Computer Motherboard Fit for ASUS Sabertooth 990FX R2.0 Desktop Motherboard Socket AM3+ DDR3 Ram 32GB Support Athlon IIX2 225 240 CPUs PCI-E 2.0 USB3.0 A : Everything Else
For Asus Sabertooth 990fx R2.0 Motherboard Socket Am3+ For Amd 990fx 990x Original Desktop Mainboard Sata Iii Used Mainboard - Motherboards - AliExpress
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Socket AM3+ Motherboard Asrock 990FX Extreme3 AMD 990FX 4xDDR3 64GB USB3.0 HDMI PCI-E 2.0 For FX 8300 Phenom II X4 945 cpu - AliExpress
Used - Very Good: ASUS Sabertooth 990FX AM3+ ATX AMD Motherboard with UEFI BIOS - Newegg.com
ASUS TUF Sabertooth 990FX R3.0 Motherboard Review | KitGuru