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Green rectangular ATX motherboard with silver CPU socket, four black RAM slots, and multiple PCIe slots

ASUS

ASUS Z170-K LGA 1151 Intel Z170 ATX Intel motherboard

SKU CH-CM4M-PBTA5

ATX Z170 board with LGA 1151 socket, DDR4 memory up to 3466MHz, M.2 PCIe 3.0 x4, USB 3.1 Gen 2, and 5X Protection II hardware safeguards

  • ProcessorIntel® Socket 1151 for 6th Generation Core™ i7/Core™ i5/Core
  • ChipsetIntel® Z170
  • Form factorATX
  • CPU socketLGA 1151
  • CPU technologiesSupports Intel® Turbo Boost Technology 2.0
  • Onboard video chipIntegrated Graphics Processor- Intel® HD Graphics support Mu
  • Hardware safeguards with 5X Protection II
  • DDR4 overclocked to 3466MHz for speed
  • USB 3.1 Gen 2 delivers 10Gbit/s data transfer
  • M.2 with PCIe 3.0 x4 for fast storage
  • 8-channel audio with LED-illuminated shielding

Target system builder

The ASUS Z170-K is an ATX motherboard built around the Intel Z170 chipset and LGA 1151 socket. It accepts 6th Generation Core i7, i5, i3, Pentium and Celeron processors. Four DDR4 DIMM slots support up to 64 GB of memory in dual-channel mode.

Sustained load behaviour

The board delivers stable operation through 5X Protection II hardware safeguards and Fan Xpert 3 controls that adjust cooling to workload demands. DDR4 can be overclocked to 3466 MHz via XMP profiles. The primary PCIe 3.0 x16 slot runs at full x16 bandwidth while a second x16 slot operates at up to x4.

Thermals noise and power

Fan Xpert 3 provides advanced fan management for quiet performance under normal use. LED-illuminated shielding covers the audio section driven by the Realtek ALC887 8-Channel codec. Onboard USB 3.1 Gen 2 enables 10 Gbit/s data transfer. M.2 Socket 3 with M key supports 2242, 2260 and 2280 drives in both SATA and PCIe 3.0 x4 modes.

How it compares

Measured against everything we stock in Motherboards for Intel CPUs, at today’s prices. Recalculated every night.

Price $69.99
Cheaper than about 69% of the 2,965 comparable items (median $97.99).

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Specifications

Product
Brand nameASUS
Product lineZ170
Model nameZ170-K
Processor
ProcessorIntel® Socket 1151 for 6th Generation Core™ i7/Core™ i5/Core™ i3/Pentium®/Celeron® Processors
CPU socketLGA 1151
ChipsetIntel® Z170
CPU technologiesSupports Intel® Turbo Boost Technology 2.0
Memory
Memory slot count4 x DIMM
Supported memoryDDR4
Max supported RAMMax. 64 GB
Memory channels3466(O.C.)/3400(O.C.)/3333(O.C.)/3300(O.C.)/3200(O.C.)/3000(O.C.)/2800(O.C.)/2666(O.C.)/2400(O.C.)/2133 MHz Un-buffered Memory Dual Channel Memory Architecture Supports Intel® Extreme Memory Profile (XMP)
Storage
SATA ports6 x SATA 6Gb/s port(s), gray
M.2 slots1 x M.2 Socket 3, , with M key, type 2242/2260/2280 storage devices support (both SATA & PCIE mode)
SATA and RAID supportSupport Raid 0, 1, 5, 10
Graphics
Onboard video chipIntegrated Graphics Processor- Intel® HD Graphics support Multi-VGA output support : HDMI/DVI-D/RGB ports
Audio & video
Audio chipRealtek® ALC887
Sound channels8-Channel High Definition Audio CODEC *2
Connectivity
Ethernet controllerRealtek® 8111GR, 1 x Gigabit LAN Controller(s)
Ports & slots
PCIe 3.0 x16 slots1 x PCIe 3.0/2.0 x16 (x16 mode, gray) 1 x PCIe 3.0/2.0 x16 (max at x4 mode, black) 2 x PCIe 3.0/2.0 x1
PCI slots2 x PCI
PS/2 ports1 x PS/2 keyboard (purple) 1 x PS/2 mouse (green)
Video connectors1 x DVI-D 1 x D-Sub
HDMI ports1 x HDMI
Ethernet port1 x RJ45
USB 3.1 ports2 x USB 3.1 Gen 2 port(s) (2 at back panel, teal blue) 4 x USB 3.1 Gen 1 port(s) (4 at mid-board)
USB 2.0 ports1 x USB 5Gb/s port(s) port(s) (1 at back panel, , USB Type-CTM, Reversible, Support 3A power output) 6 x USB 2.0/1.1 port(s) (2 at back panel, , Type-A, 4 at mid-board)
Audio jacks3 Ports
Size & build
Form factorATX
More details
SATA express1 x SATA Express port, gray, Compatible with 2 x SATA 6.0 Gb/s ports

Questions about this item

How loud does the board get when the Fan Xpert 3 headers run all day under load?

Fan Xpert 3 lets you tune each header to a quiet curve, so noise stays low even during extended sessions.

Which DDR4 kit and 6th-generation LGA 1151 processor must I already have for this Z170-K to post?

You need a 6th-gen Core i7, i5, i3, Pentium or Celeron in LGA 1151 plus DDR4 DIMMs up to 64 GB.

Will my existing SATA 6 Gb/s drives and PCI add-in cards still work alongside the M.2 slot?

Yes — six SATA 6 Gb/s ports, one SATA Express port and two legacy PCI slots remain fully usable.

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