Gigabyte have launched their Z170 series of LGA1151 motherboard and you have quite a few to choose from.  The 10 motherboards that are being released are the GA-Z170X-UD5, GA-Z170X-UD3, GA-Z170X-Gaming 7, GA-Z170X-Gaming 5, GA-Z170X-Gaming 3, GA-Z170X-Gaming G1, GA-Z170XP-SLI, GA-Z170-HD3P, GA-Z170M-D3H and GA-Z170-HD3.  All the boards have differences of course, but let Gigabyte's PR explain to you the similarities.

City of Industry, California, August 5th, 2015 – GIGABYTE TECHNOLOGY Co. Ltd., a leading manufacturer of motherboards and graphics cards is proud to announce today its new 100 series motherboards based on the Intel Z170 chipset with support for Intel’s new 6th Gen. Core processor. This updated platform marks a new era for the desktop PC with the continued support of DDR4, introduction of USB 3.1 over the new Type-C connector, as well as an array of onboard features and technologies that lets the user unleash the full power of their PC.

"We are very excited to launch our new 100 series motherboards based on Intel’s new Z170 chipset here at Gamescom in Germany, ” commented Henry Kao, Vice President of GIGABYTE Motherboard Business Unit. “We know everyone has been eagerly waiting for this, so we made sure our 100 series motherboards are packed with features which will make them stand out and provide the best possible experience from the latest 6th Gen. Core CPU from Intel.”

GIGABYTE 100 Series Motherboards
With the 100 series, GIGABYTE offers three motherboard segments to satisfy everyone’s specific needs. The Ultra Durable caters to users looking for a board that has long lasting, high quality components while the G1 Gaming targets gamers that demand cutting edge audio and graphics performance, and with the SOC Force GIGABYTE is bringing a solution for those who are looking to push their hardware performance off the charts. GIGABYTE brings a series of features that won’t let anyone down.

Intel 6th Gen. Core CPUs and Z170 Chipset
With its new 6th Gen. Core CPUs and Z170 chipset, Intel provides notable improvements over the previous generation and revolutionary new features such as support for Windows 10 and DirectX 12, the latest and greatest operating system and API from Microsoft which are both supported natively on GIGABYTE motherboards. Additionally, the new LGA 1151 socketed 14nm CPU from Intel brings both DDR4 and DDR3 support as well as enough power to support up to 3 independent digital displays and enhanced full range BCLK overclocking!

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World’s First USB 3.1 with Intel Controller
The Intel USB 3.1 controller, the industry’s fastest USB controller, utilizes 4 PCIe Gen.3 lanes to offer a total bandwidth of 32 Gb/s, for uncompromised transfer speed of up to 10 Gb/s.With twice the bandwidth compared to its previous generation and backwards compatibility with USB 2.0 as well as 3.0, selected 100 series boards provide dual connectivity via USB Standard-A and the innovative USB Type-C making GIGABYTE the best USB 3.1 solution on the market with better compatibility over a wider range of devices.

Creative Sound Blaster ZxRi 120+dB SNR Audio Certified
GIGABYTE’s Z170-Gaming G1 motherboards feature a quad-core Creative Sound Core3D audio processor with Burr-Brown High-End 127 dB DAC. The discrete card level audio design featured onboard is certified for headphone jack output exceeding 120 dB+ SNR lifelike sound.

“Our ongoing close partnership with GIGABYTE Technology has been something that we’ve always been extremely proud of, and with the launch of the all new G1 Gaming Motherboard, you can see why,” said Low Long Chye, General Manager of Audio at Creative Technology Pte. Ltd, creators of the Sound Blaster. “The groundbreaking G1 Gaming Motherboard, together with the Sound Blaster ZxRi onboard sound card, and its Sound Core3D multi-core sound and voice processor, is a masterstroke of audio engineering technology.”

Combined with the SBX Pro Studio suite of audio playback technologies, the onboard sound solution delivers a new level of audio immersion with realistic surround sound and the ability to clearly hear specific sounds in a gaming environment.

High End Nichicon Fine Gold and WIMA Audio Caps
With the Z170X-Gaming G1 motherboard, GIGABYTE introduces a combination of Hi-Fi grade WIMA Capacitors, and Nichicon audio grade Fine Gold capacitors. The Nichicon Fine Gold capacitors and WIMA FKP2 capacitors are used widely in premium-grade Hi-Fi systems. Users will experience a richer bass and clearer high frequencies.

Killer DoubleShot-X3 Pro
GIGABYTE’S Killer network solution is featured on selected GIGABYTE Z170 high-end motherboards. Combining the Dual Gigabit LAN Killer E2400 with the Killer 1535 Wi-Fi card offering the latest 802.11ac+Bluetooth 4.1, the Killer DoubleShot-X3 Pro application can prioritize and redirect the most important traffic over the fastest connection available, making sure that your game is never affected by a congested network due to multitasking. By working together, the triple LAN solution offers better traffic management, faster transfer speed, and less lag to multitasking users.

Ultra Durable PCIe Metal Shield
Seen first on its 100 series motherboards, GIGABYTE presents a new innovation in its Ultra Durable technologies lineup with the PCIe One Piece Metal Shield. Add-in cards can be extremely heavy, especially long graphics cards, and removing them can put a lot of stress on the connector. The innovative one-piece stainless steel shielding design from GIGABYTE reinforces the PCIe connectors to provide the extra strength required to support heavy graphics cards.