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ATX motherboard in black with silver heatsinks and LGA 1200 socket

ASUS

ASUS PRIME Z490-A Intel Z490 1200 LGA ATX Motherboard A

SKU CH-AFM5-X8R9V

ATX board for Intel LGA 1200 CPUs with DDR4 memory up to 128 GB, one PCIe 3.0 x16 slot, DisplayPort and USB 3.1 Gen 2 on the rear I/O

  • Memory StandardDDR4
  • Maximum Memory Supported128GB
  • PCI Express 3.0 x161x PCI Express 3.0 x16
  • PCI Express x161
  • PCI Slots1 x PCI Slot
  • Back I/O Ports1 x DisplayPort / 1 x USB 3.1 Gen 2 Type-A
  • Supports up to 128GB DDR4 for heavy multitasking
  • Single PCI Express 3.0 x16 slot for graphics expansion
  • ATX form factor fits standard desktop cases
  • DisplayPort and USB 3.1 Gen 2 Type-A on rear I/O
  • Gigabit RJ45 provides wired network connectivity

Target Build

The ASUS PRIME Z490-A is an ATX motherboard built around the Intel Z490 chipset for LGA 1200 processors. It supports DDR4 memory up to 128GB and provides a single PCI Express 3.0 x16 slot for graphics. Rear I/O includes DisplayPort, USB 3.1 Gen 2 Type-A and a single RJ45 LAN port. The board ships with motherboard and I/O shield only.

Best Fit

This board suits a build that needs one full-size graphics card, high DDR4 capacity and basic display output from a compatible CPU. It is not suited for multi-GPU configurations, systems requiring onboard Wi-Fi or builds needing more than one high-speed USB 3.1 Gen 2 port on the rear panel. The single PCI slot adds legacy expansion but no additional x16 bandwidth.

Deciding Spec

The single PCI Express 3.0 x16 slot is the specification that determines compatibility. If the build requires a second x16 slot for a second GPU or a high-bandwidth add-in card, this motherboard will not meet that requirement.

Highlights

  • Supports up to 128GB DDR4 for heavy multitasking
  • Single PCI Express 3.0 x16 slot for graphics expansion
  • ATX form factor fits standard desktop cases
  • DisplayPort and USB 3.1 Gen 2 Type-A on rear I/O
  • Gigabit RJ45 provides wired network connectivity

Specifications

BrandASUS
ModelPRIME Z490-A
Memory StandardDDR4
Maximum Memory Supported128GB
PCI Express 3.0 x161x PCI Express 3.0 x16
PCI Express x161
PCI Slots1 x PCI Slot
Back I/O Ports1 x DisplayPort / 1 x USB 3.1 Gen 2 Type-A
RJ451 x RJ45
DisplayPort1 x DisplayPort
USB 3.11 x USB 3.1
Form FactorATX

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