Features: brand new and high quality Four-channel DDR4 slot supports 256GB of memory: The four channels can be expanded to 256GB, which greatly improves the performance of the motherboard. 2 PCIE 16X: PCIE X16 expands independent graphics card to increase computer speed. Full speed for M.2 port + for M.2 port: for M.2 port is specially designed for gamers, for M.2 has PCI-E 3.0 x 4 wideband and supports baud rate of 32 / S data. Support Xeon E5 LGA 2011-3 V3/ V4 series processors: games and 3D rendering, modeling and multiple boxing. Two high efficiency cooling fans, speed up the data transmission of 10 times. Specifications: Model: HUANANZHI Model:X99 Condition: Full new CPU socket: LGA 2011-3 Structure: M-ATX VGA socket: 2xPCI-E X 16 Power port: 24Pin+8pin Memory socket: 4xDDR3+4xDDR4 DDR3 memory can only support on these models below: E5 2678 V3/ E5 2696 V3/ E5 2629 V3/ E5 2649 V3/ E5 2669 V3/ E5 2676 V3 Max memory capacity: 128G DDR3 1066/1333/1600MHz/1866MHz Memory type supported: non-ecc/reg ecc/ecc Size:approx. 302x244mm/11.89x9.61in Package Includes: 1PC x Motherboard note: 1.The motherboard chips have difference band chips,because of the different product batches,we will send the goods by random,please refer to the actual product. 2.This planform needs powerful power supply. please make sure your power supply can enough to supports this planform.(at least 500wbrand power supply) 3.For tax problem in Brazil, pls make sure you can solve the customs clearance problems by yourself, if you can'for t solve it, we don'for t advise you to buy goods in our store. We are not responsible for customs duties. Thanks for your kindly understanding. 4. The motherboard not support work together with the DDR3L memory, pls check the memory type before buy the motherboard. 5.The motherboard no RGB socket, the for image is only a reference，the actual product shall prevail.