Intel® Core™ i7 Processor (Socket R3), Intel® Core™ i7 Processor Extreme Edition (Socket R3), Intel® Xeon® Processor E5-1600 v3, Intel® Xeon® Processor E5-1600 v4, Intel® Xeon® processor E5-2600 v3, Intel® Xeon® processor E5-2600 v4. , Socket R3 (LGA 2011) supported, CPU TDP support Up to 150W TDP. Intel® X99. Up to 128GB Unbuffered non-ECC UDIMM, DDR4-3300MHz (OC), in 8 DIMM slots. 4 PCI-E 3.0 x16. 2 PCI-E 2.0 x1 (in x4 slot)