X99-S3 Gaming Motherboard LGA2011 V3 For Intel XEON E5 V3 V4 4 DDR4 ECC REG RAM. X99-S3 motherboard supportsi7-6800K(3.4GHz/3.6GHz, 6 cores 12 threads), i7-6850K CPU(3.6GHz/3.8GHz, 6 cores 12 threads). Feature: 100% brand new and high quality. 10-Layer PCB, Stable and Cost-Effective. Support Intel XEON E5 LGA2011-3 V3/V4 series CPU. Support 8DDR4 ECC Memory quad Channels up to 256GB. Support High Speed 2NVMe M. 2Interface KeyA&E (support WIFI + BT). Onboard 1Realtek RTL8111HGigabit Ethernet. Onboard 1Realtek ALC8925.1, supported 8 sound Channel. Support 8USB3.0, 6SATA3.0. High compatibility for a higher experience. All solid capacitors, fine workmanship, professional stability. Specification: Condition : Full new Form Factor : M-ATX, 302mm x 243.84mm Chipset : Intel® B85/Q87 Chipsets CPU socket : LGA2011-V3 CPU supported :Xeon E5 V3/V4 LGA2011-V3 full series processors / Intel CoreT 6800K 6850K CPU. Memory socket : 8 DDR4 ECC RAM 1600/1866/2133/2400MHz4 main slots and 4 sub slots. Please use the main slot first, and the motherboard will not boot if you only plug it into the sub-slot. Compatible with non-ECC memory. Max memory : Support Quad Channel Architecture up to 256GB. Graphic card slot : 3PCI-E 16X(PCIE X16_1, PCIE X16_2 support X16 GEN3 speed, PCIE X16_3 only supports x4 GEN3 speed) / 1PCI-E 1X. Storage : 6 SATA3.0. USB Ports : 8 USB3.0, 5 USB2.0. Expansion slots : 2NVME M. 2 (PCIE-M2_1 supports X4 GEN3 speed, PCIE-M2_2 only supports X4 GEN2 speed), 1NGFF M. 2 KeyA&E WIFI (support WIFI+Bluetooth). LAN : Onboard 1Realtek RTL8111H Gigabit Ethernet. Audio : Onboard 1Realtek ALC892 (supports 8 sound channels). PSU Solution : ATX 8Pin + ATX 24Pin Accessories : 1 x I/O Shield, 1 x SATA cable. The product is constantly optimized and upgraded. 2: Please allow 1-3mm differs due to manual measurement. 3: Due to the different display and different light, the picture may not show the actual color of the item. Thanks for your understanding. For return requests, please read the following information. If the product cannot be used due to human reasons, we refuse to return it. Shenzhen Mingzhi Industry Technology Co. All of our products comply with international quality standards and are greatly appreciated in various markets throughout the world. We Strive to deliver perfectly functioning, defect-free products to our clients. Welcome to visit our factory in Shenzhen. We are looking forward to working with you! We would love to help you! Please note that our customer representative response maybe will delay due to the holidays and weekends.