GIGABYTE did not leave out the Sandy Bridge-E HEDT platform when designing its new Ultra Durable 5 line of motherboards, the company showed of two new socket LGA2011 parts, the X79S-UP5 WIFI, and the X79-UP4. The X79-UP4 is designed to be a sub-$300 offering, being a notch above the X79-UD3 (and perhaps even the X79-UD5). It uses a 6+1 phase CPU VRM, which consists of high-current ferrite core chokes, and PowIRstage IR3550 driver-MOSFETs. GIGABYTE added eight DDR3 DIMM slots, four on either side of the socket, supporting up to 64 GB of quad-channel DDR3 memory. Expansion slots include four PCI-Express 3.0 x16 (x16/x8/x16/x8), two PCI-Express 2.0 x1, and one legacy PCI. The X79-UP4 otherwise has a similar connectivity load-out as the X79-UD3. The X79S-UD5 WiFi is packed to the brim with features. It uses a stronger 8-phase CPU VRM, with the same choice of components as the X79-UP4, eight DDR3 DIMM slots which can hold up to 64 GB of quad-channel DDR3 memory, four PCI-Express 3.0 x16 (x16/x8/x16/x8), eight SAS 3 Gb/s ports, apart from four SATA 3 Gb/s and two SATA 6 Gb/s. An 802.11 b/g/n + Bluetooth 4.0 add-on card is included in the package. The rest of its feature-set is similar to that of the X79S-UD5.