x99 motherboard with 3 PCI-E 3.0 x16 slots for smooth SLI performance

[imran5320xm]

i am building a high end 4k gaming pc. here is my config

intel core i7 5820k
g.skill ripjaws 2666mhz 32gb 8x4 DDR4
3-way msi gtx 970 sli
corsair RM-1000 watt psu
samsung 28" 4k monitor

now my question is, is there any brand midrange (upto 400 usd. lower is better) x99 motherboard that have 3 PCI Express 3.0 x16 slots for smooth sli performance.

 

[Darkbreeze]

The ASUS X99-A supports 3 PCIe 3.0 x16 slots @ (x16, x16, x16) and is well below your budget limit.

PCPartPicker part list / Price breakdown by merchant

Motherboard: Asus X99-A ATX LGA2011-3 Motherboard ($247.50 @ Newegg)
Total: $247.50
Prices include shipping, taxes, and discounts when available
Generated by PCPartPicker 2014-10-13 02:34 EDT-0400

 

[ceeete1981]

Hi,
Thanks for quick answer I have one more question...(this one is slighly noobish), are you refering to:
Asus X99-A Intel Haswell Extreme ATX Motherboard
http://www.scan.co.uk/products/asus-x99-a-intel-x99-s-2011-3-ddr4-sata-iii-6gb-s-satae-m2-pcie-pcie-30-(x16)-3-way-sli-crossfire-us
or to
Asus X99-A/USB3.1 Haswell Extreme ATX Motherboard
http://www.scan.co.uk/products/asus-x99-a-usb31-intel-x99-s-2011-3-ddr4-sata3-satae-pcie-30-(x16)-m2-pcie-3-way-sli-crossfire-usb-3
Or are they pretty much the same (PCI speed wise)?

 

[Darkbreeze]

Are you imran5320xm but logged in under a different account, or what? Because I don't know who ceeete1981 is.