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Green Mini STX motherboard with LGA 1151 socket, PCIe x16 slot and M.2 slot

ASUS

ASUS Q170S1 Intel Q170 LGA 1151 Mini STX motherboard

SKU CH-X4B3-FP7PM MPN Q170S1.

A Mini STX board with an Intel Q170 chipset and LGA 1151 socket supporting DDR4 memory up to 32GB

  • ProcessorCore i7 / i5 / i3 / Pentium / Celeron (LGA1151)
  • ChipsetIntel Q170
  • CPU socketLGA 1151
  • Supported memoryDDR4
  • Max supported RAM32 GB
  • PCIe 3.0 x16 slots1x PCI Express 3.0 x16
  • Compact Mini STX form factor fits small chassis
  • Intel Q170 chipset supports 6th/7th Gen Core processors
  • LGA 1151 socket accepts Core i7, i5, i3, Pentium, Celeron
  • DDR4 memory up to 32 GB for multitasking
  • PCIe 3.0 x16 plus PCI slot for expansion

Compact LGA 1151 motherboard

The ASUS Q170S1 is a Mini STX board built around the Intel Q170 chipset for LGA 1151 processors. It fits small-form-factor chassis while providing a full desktop feature set. The platform supports DDR4 memory up to 32 GB across two slots. It targets embedded systems, thin clients and space-constrained workstations.

System builders needing a tiny Q170 platform

This board suits integrators assembling compact commercial PCs that require vPro manageability and multiple display outputs. The single PCIe x16 slot allows a low-profile add-in card such as a capture or I/O adapter. Builds needing more than one expansion slot or a standard ATX power connector should consider a larger form factor.

One PCIe 3.0 x16 slot and one M.2 slot

Expansion is limited to a single PCI Express 3.0 x16 slot and one M.2 socket for storage or wireless modules. The rear I/O provides one DisplayPort and one USB 3.1 Gen 2 Type-A port alongside a single RJ-45 Ethernet jack. Verify that your case and power supply match the Mini STX layout before ordering.

How it compares

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

Price $34.99
Cheaper than about 92% of the 2,965 comparable items (median $97.99).

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Specifications

Product
Brand nameASUS
Model nameQ170S1
Processor
ProcessorCore i7 / i5 / i3 / Pentium / Celeron (LGA1151)
CPU socketLGA 1151
ChipsetIntel Q170
Memory
Supported memoryDDR4
Max supported RAM32 GB
Ports & slots
PCIe 3.0 x16 slots1x PCI Express 3.0 x16
PCIe x16 slots1
PCI slots1 x PCI Slot
Rear panel ports1 x DisplayPort / 1 x USB 3.1 Gen 2 Type-A
Ethernet port1 x RJ45
DisplayPort connectors1 x DisplayPort
USB 3.1 ports1 x USB 3.1

Questions about this item

Will this board fit inside a standard Mini STX chassis?

The form factor is Mini STX so it matches any chassis built for that size; verify the mounting hole pattern of your case before ordering.

Which DDR4 modules can I install and how much total memory is supported?

Two SO-DIMM slots accept DDR4 up to 32 GB total; use matching sticks for dual-channel operation.

What expansion cards can I add through the PCIe x16 slot?

The single PCI Express 3.0 x16 slot takes full-height graphics cards or other x16 add-in boards; a legacy PCI slot is also present for older cards.

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