3) The combination of Killer Wireless and Killer Ethernet enables Killer DoubleShot Pro which automatically picks the fastest network connection (Killer Wireless or Killer Ethernet) and sends high priority traffic over that interface and sends standard traffic over the other interface.

Page 7 of the X99 FTW K Manual (PN 151-BE-E097-KR) Motherboard Specifications states the following: Onboard LAN: 1x Intel i218v Gigabit Ethernet 1x Killer E2400 Gigabit Ethernet MAC+PHY Supports 10/100/1000 Mb/sec Ethernet Ethernet Teaming NOT Supported Killer Doubleshot supported with Killer Wireless AC 1535 or 1525**.with the following notation: ** Killer Wireless AC is not included and needs to be purchased separately. I contacted Killer Networking Support about pairing the on board Killer LAN with a Killer 1535 wireless adapter to enable the Double Shot Pro feature. Killer Support response: • Yes, you must have more than one adapter for Doubleshot to be an option.• Unfortunately we do not sell individual units. Point 2 conflicts with the last line of the Onboard LAN Specification and the associated notation quoted above from the FTW K manual (bold & italicized). In my quest to ascertain the viability of establishing the Doubleshot feature with the X99 FTW K motherboard, I discovered there are Killer 1525 & 1535 Wireless AC adapters sold on eBay and Amazon. Further contact with Killer Support established their understandable policy, 'In theory yes.

If you have two Killer adapters you could use the DoubleShot feature, however, we could not support the sale from a third party vendor and could not guarantee its functionality.' This begs the question - Is EVGA going to make the Killer Wireless AC adapters available for purchase to support the X99 FTW K expectation of being able to add and enable the Doubleshot feature?

Otherwise the information in the manual is misleading. =============================================================================================================================== **UPDATE** July 11, 2016 Regardless of brand, M.2 devices generally conform to an established form factor and key notch. A user must determine the Key (notch) used to fit a particular M.2 socket and the length of M.2 device PCB in order to select an appropriate adapter to take it from its 'bare' form factor to motherboard slot of choice. * IMPORTANT: • These WiFi/BT cards are NOT SOLD AS RETAIL PRODUCTS by Killer/Rivet Networks.

• To purchase one, you must find them for sale through other channels as repair/replacement parts (OEM) or sellers on eBay, AliExpress and/or Amazon and possibly other outlets. • RIVET NETWORKS/KILLER and EVGA are NOT responsible for your results (or lack of) and rightfully OFFER NO SUPPORT!

This is a user venture much like a mod, as in a sense, it is a mod.• You may have to find and purchase addition parts, such as antenna and adapter PCBs if necessary for compatibility with your intended use. This case is specific to the Killer brand 1525 & 1535 M.2 Key E WiFi/BT card (below) and adapting from solitary nakedness to PCI Express on the motherboard in order to tap DoubleShot Pro glory! There were no Killer brand wireless cards listed for sale at Amazon.com at the time of this Update (approx 1450 hours EST). EVGA Forum user has tried a couple adapters in order to make this WiFi/BT card compatible with PCI Express.

The adapter below MAY (see notes under pic) involve the purchase of a fully assembled WiFi/BT adapter, removal the WiFi/BT card that comes with the adapter and install the Killer 1525 or 1535 WiFi/BT card in it's place. After that is it a matter of downloading the software from Rivet Networks/Killer. **NOTE** there are several versions of this same model number! The version of this adapter that works with the Killer Key E WiFi cards is listed as REV 4.2 - as in Bluetooth 4.2!

The other version of this adapter is for miniSATA slot to PCI Express. There are also adapters with this same model number which DO NOT have WiFi/BT cards installed! IF other adapters are found to be compatible with the Killer 1525 & 1535 WiFi cards, this post will be updated. Gtxjackbauer And when I saw them off on ebay a month or two ago, what are you suppose to do with the antenna inputs?