Newegg.com has as a Combo: Ryzen 7 1700 + ASRock X370 Killer SLI/ac ATX Motherboard for $344.98 – $20 Rebate = $324.98. Shipping is free.
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Includes:
- 1x Ryzen 7 1700 3Ghz Processor
- Socket AM4
- 8 Cores / 16 Threads
- Max Turbo Frequency 3.7 GHz
- Unlocked Processor
- Thermal Design Power 65W
- AMD Wraith Spire LED Cooler Included
- 1x ASRock X370 Killer SLI/ac ATX Motherboard
- Supports AMD Socket AM4 A-Series APUs (Bristol Ridge) and Ryzen Series CPUs (Summit Ridge)
- Supports DDR4 2933+ (OC) (Ryzen CPU) / 2400 (A-series APU)
- 2 PCIe 3.0 x16, 4 PCIe 2.0 x1, 1 M.2 (Key E)
- NVIDIA® Quad SLI™, AMD Quad CrossFireX™
- Graphics Output:HDMI
- 7.1 CH HD Audio (Realtek ALC892 Audio Codec), Nichicon Fine Gold Series Audio Caps
- 6 SATA3, 1 Ultra M.2 (PCIe Gen3 x4 & SATA3), 1 M.2 (PCIe Gen2 x2 & SATA3)
- 12 USB 3.0 (1 Type-C, 4 Front, 7 Rear)
- Intel® Gigabit LAN
- Intel® 802.11ac+ BT 4.2