How to configure killer wireless-ac 1535?

I have a wireless card which is shown as "killer wireless-n/a/ac ac 1535" in device manager of windows 10.

I read through handbook, and searched online (including this forum), but results were not much helpful.

How do I do it?

I am using FreeBSD 11.1, and XFCE.

Thanks a lot in advance,
It may not be supported. According to this it uses Qualcomm QCA6174. So maybe it will show up using the ath driver.

If you have FreeBSD on the box now then show us output of pciconf -l

pciconf -l gave me this outpu:
usernamekiran@alienware:~ % pciconf -l
hostb0@pci0:0:0:0:   class=0x060000 card=0x07071028 chip=0x19048086 rev=0x08 hdr=0x00
vgapci0@pci0:0:2:0:   class=0x030000 card=0x07071028 chip=0x19168086 rev=0x07 hdr=0x00
none0@pci0:0:4:0:   class=0x118000 card=0x07071028 chip=0x19038086 rev=0x08 hdr=0x00
xhci0@pci0:0:20:0:   class=0x0c0330 card=0x07071028 chip=0x9d2f8086 rev=0x21 hdr=0x00
none1@pci0:0:20:2:   class=0x118000 card=0x07071028 chip=0x9d318086 rev=0x21 hdr=0x00
none2@pci0:0:21:0:   class=0x118000 card=0x07071028 chip=0x9d608086 rev=0x21 hdr=0x00
none3@pci0:0:21:1:   class=0x118000 card=0x07071028 chip=0x9d618086 rev=0x21 hdr=0x00
none4@pci0:0:22:0:   class=0x078000 card=0x07071028 chip=0x9d3a8086 rev=0x21 hdr=0x00
ahci0@pci0:0:23:0:   class=0x010400 card=0x07071028 chip=0x282a8086 rev=0x21 hdr=0x00
pcib1@pci0:0:28:0:   class=0x060400 card=0x07071028 chip=0x9d108086 rev=0xf1 hdr=0x01
pcib2@pci0:0:28:6:   class=0x060400 card=0x07071028 chip=0x9d168086 rev=0xf1 hdr=0x01
pcib3@pci0:0:28:7:   class=0x060400 card=0x07071028 chip=0x9d178086 rev=0xf1 hdr=0x01
pcib4@pci0:0:29:0:   class=0x060400 card=0x07071028 chip=0x9d1a8086 rev=0xf1 hdr=0x01
isab0@pci0:0:31:0:   class=0x060100 card=0x07071028 chip=0x9d488086 rev=0x21 hdr=0x00
none5@pci0:0:31:2:   class=0x058000 card=0x07071028 chip=0x9d218086 rev=0x21 hdr=0x00
hdac0@pci0:0:31:3:   class=0x040300 card=0x07071028 chip=0x9d708086 rev=0x21 hdr=0x00
none6@pci0:0:31:4:   class=0x0c0500 card=0x07071028 chip=0x9d238086 rev=0x21 hdr=0x00
vgapci1@pci0:1:0:0:   class=0x030200 card=0x07071028 chip=0x139b10de rev=0xa2 hdr=0x00
alc0@pci0:2:0:0:   class=0x020000 card=0x10280707 chip=0xe0a11969 rev=0x10 hdr=0x00
none7@pci0:3:0:0:   class=0x028000 card=0x15351a56 chip=0x003e168c rev=0x32 hdr=0x00
usernamekiran@alienware:~ %
How about this:
pciconf -lv | grep -B3 network
usernamekiran@alienware:~ % pciconf -lv | grep -B3 network
alc0@pci0:2:0:0:   class=0x020000 card=0x10280707 chip=0xe0a11969 rev=0x10 hdr=0x00
    vendor     = 'Qualcomm Atheros'
    device     = 'Killer E2400 Gigabit Ethernet Controller'
    class      = network
none7@pci0:3:0:0:   class=0x028000 card=0x15351a56 chip=0x003e168c rev=0x32 hdr=0x00
    vendor     = 'Qualcomm Atheros'
    device     = 'QCA6174 802.11ac Wireless Network Adapter'
    class      = network
usernamekiran@alienware:~ %

By the way, Ethernet never gave any problems.