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ATX motherboard in black with silver heatsinks and four DDR4 slots

ASRock

ASRock Z270 Killer SLI LGA 1151 ATX Intel motherboard

SKU CH-JYPC-ZX3JT

ATX board for LGA 1151 CPUs with Intel Z270 chipset, four DDR4 slots up to 64GB, two PCIe 3.0 x16 slots, six SATA 6.0Gb/s ports, two M.2 sockets, 7.1 audio and gigabit LAN

  • CPU socketLGA 1151
  • ChipsetIntel Z270
  • Form factorATX
  • CPU technologiesTurbo Boost Technology 2.0
  • Onboard video chipSupports Intel HD Graphics Built-in Visuals: Intel Quick Syn
  • Memory slot count4 × 288pin (DDR4)
  • Supports 6th and 7th Gen Intel Core CPUs on LGA 1151 socket
  • Four DDR4 slots accept up to 64 GB at speeds up to 3733+(OC)
  • Two PCIe 3.0 x16 slots run at x16 or dual x8 for SLI graphics
  • Two Ultra M.2 sockets deliver PCIe Gen3 x4 32 Gb/s and SATA 6.0 Gb/s
  • Intel I219-V 1 Gbps LAN plus Realtek ALC892 7.1-channel audio

Z270 chipset LGA 1151 board

The ASRock Z270 Killer SLI is an ATX motherboard built for 6th and 7th generation Intel Core, Pentium and Celeron processors. It delivers the Z270 feature set including CPU overclocking support and multi-GPU capability for enthusiasts building a high-performance desktop.

DDR4 memory limits and PCIe 3.0 lanes

Four 288-pin slots accept DDR4 up to 3733+(OC) with a 7th generation CPU, while 6th generation processors top out at 2133. Maximum capacity is 64GB. Two PCIe 3.0 x16 slots run at x16 single or x8/x8 dual, and four PCIe 3.0 x1 slots provide additional expansion bandwidth.

Storage headroom with dual Ultra M.2

Six SATA3 6.0Gb/s ports support RAID 0, 1, 5, 10 plus Intel Rapid Storage Technology 15. Two Ultra M.2 sockets take 2230 to 2280 modules at PCIe 3.0 x4 (32Gb/s) or SATA3 6.0Gb/s, with NVMe boot support and Intel Optane technology compatibility.

How it compares

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

Price $88.99
Cheaper than about 56% of the 2,965 comparable items (median $97.99).

New to this? Buying PC parts with Monero — what to check, what it costs to pay, and what is never asked for.

Specifications

Product
Brand nameASRock
Model nameZ270 Killer SLI
Processor
CPU socketLGA 1151
ChipsetIntel Z270
CPU technologiesTurbo Boost Technology 2.0
Memory
Memory slot count4 × 288pin (DDR4)
Max supported RAM64 GB
Storage
M.2 slots2 x Ultra M.2 Sockets, support M Key type 2230/2242/2260/2280 M.2 SATA3 6.0Gb/s module and M.2 PCI Express module up to Gen3 x4 (32Gb/s)**
** Supports Intel Optane Technology
Supports NVMe SSD as boot disks**
Supports ASRock U.2 Kit
Audio & video
Audio chipRealtek ALC892
Sound channels7.1 Channels
Connectivity
Ethernet controllerIntel I219-V
Maximum network speed1 Gbit/s
Ports & slots
PCIe 3.0 x16 slots2 x PCI Express 3.0 x16 Slots (PCIE2/PCIE4: single at x16 (PCIE2); dual at x8 (PCIE2) / x8 (PCIE4))*
* Supports NVMe SSD as boot disks
PCIe x1 slots4 x PCI Express 3.0 x1 Slots (Flexible PCIe)
PS/2 ports1 x PS/2 keyboard/mouse port
Video connectors1 x DVI-D Port
HDMI ports1 x HDMI
Ethernet port1 x RJ-45 LAN Port with LED (ACT/LINK LED and SPEED LED)
USB 3.0 ports5 x USB 3.0 Type-A Ports (Supports ESD Protection (ASRock Full Spike Protection))
USB-C ports1 x USB 3.0 Type-C Port (Supports ESD Protection (ASRock Full Spike Protection))
S/PDIF output1 x Optical
Audio jacksHD Audio Jacks: Rear Speaker / Central / Bass / Line in / Front Speaker / Microphone
Power
Power connectors1 × 24 pin ATX Power Connector
1 × 8 pin 12 V Power Connector
Size & build
Form factorATX
Width and length12.0 in × 8.8 in

Questions about this item

Which DDR4 speed should I pick for a 7th Gen Intel CPU on this board?

The board lists DDR4 up to 2400 for 7th Gen CPUs; higher speeds such as 3733+(OC) are only validated with specific modules on the vendor memory support list.

What does the Ultra M.2 Gen3 x4 (32Gb/s) figure mean for an NVMe drive in daily use?

The Ultra M.2 sockets run at PCIe 3.0 x4, providing a 32 Gb/s electrical link; actual NVMe throughput will be lower after protocol overhead and depends on the drive itself.

How many PCIe 3.0 x16 slots are usable for SLI and at what lane width?

Two PCIe 3.0 x16 slots are present; they run at x16 when one is used and split to x8/x8 when both are populated for SLI.

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