Skip to contentAccessibility help
About Us
ASUS LogoASUS Logo
For Consumer

Find your perfect match

Compare up to 4 products

PRIME A520M-A II/CSM

Volume PurchaseLearn more

H81M-K

Volume PurchaseLearn more

Compare details

Download pdf

CPU

*Refer to www.asus.com for CPU support list.
* Refer to www.asus.com for CPU support list.,Intel® Socket 1150for 4th Generation Core™ i7/Core™ i5/Core™ i3/Pentium®/Celeron® Processors,Supports Intel® 22nm CPU,Supports Intel® Turbo Boost Technology 2.0,* The Intel® Turbo Boost Technology 2.0 support depends on the CPU types.

Manageability

WOL by PME, PXE
WfM 2.0, DMI 2.0, WOL by PME, PXE

Audio

Realtek ALC887/897 7.1 Surround Sound High Definition Audio CODEC*

- Supports : Jack detection, Multi-streaming, Front Panel Jack-retasking

- Supports up to 24-Bit/192 kHz playback"

Audio Features

- Audio Shielding

- Premium audio capacitors

- Dedicated audio PCB layers

*A chassis with an HD audio module in the front panel is required to support 7.1 Surround Sound audio output.

Realtek ALC887/8978-Channel High Definition Audio CODEC *2,- Supports : Front Panel Jack-retasking, up to 24-Bit/192kHz playback

Chipset

Intel® H81

Memory

4800(OC)/4600(OC)/4466(OC)/4400(OC)/4266(OC)/4133(OC)/4000(OC)/3866(OC)/3733(OC)/3600(OC)/3466(OC)/3333(OC)/3200/3000/2800/2666/2400/2133 MHz, Un-buffered Memory*

Dual Channel Memory Architecture

*ECC Memory (ECC mode) support varies by CPU.

* Refer to www.asus.com for the Memory QVL (Qualified Vendors Lists), and memory frequency support depends on the CPU types.

* Refer to www.asus.com for the Memory QVL (Qualified Vendors Lists).,2 x DIMM, Max. 16GB, DDR3 1600/1333/1066 MHz Non-ECC, Un-buffered Memory,* Due to Intel® chipset limitation, DDR3 1600 MHz and higher memory modules on XMP mode will run at the maximum transfer rate of DDR3 1600 Mhz.,Dual Channel Memory Architecture,Supports Intel® Extreme Memory Profile (XMP),* Hyper DIMM support is subject to the physical characteristics of individual CPUs.

Special Features

ASUS 5X PROTECTION III

- DIGI+ VRM

- LANGuard

- Overvoltage Protection

- SafeSlot Core

- Stainless-Steel Back I/O

ASUS Q-Design

- ASUS Q-DIMM

- ASUS Q-Slot

ASUS Thermal Solution

- VRM heatsink design

AURA Sync

- AURA RGB headers

- Addressable Gen 2 RGB headers

- Network iControl,- USB 3.0 Boost,- ASUS EZ Flash 2,- Disk Unlocker,- Anti-Surge,ASUS EPU :,- EPU,ASUS Exclusive Features :,- GPU Boost,- AI Suite 3,- Ai Charger,- ASUS UEFI BIOS EZ Mode featuring friendly graphics user interface,ASUS Quiet Thermal Solution :,- Stylish Fanless Design Heat-sink solution,- ASUS Fan Xpert,ASUS EZ DIY :,- ASUS CrashFree BIOS 3,ASUS Q-Design :,- ASUS Q-Slot

Back Panel I/O Ports

4 x USB 3.2 Gen 1 ports (4 x Type-A)

2 x USB 2.0 ports (2 x Type-A)

1 x DisplayPort

1 x HDMI™ port

1 x D-Sub

1 x Realtek 1Gb Ethernet port

3 x Audio jacks

1 x PS/2 Keyboard/Mouse combo port

Graphic

Multi-VGA output support : DVI/RGB ports,Integrated Graphics Processor,- Supports DVI with max. resolution 1920 x 1200 @ 60Hz,- Supports RGB with max. resolution 1920 x 1200 @ 60 Hz,Supports Intel® InTru™ 3D, Quick Sync Video, Clear Video HD Technology, Insider™,Maximum shared memory of 1024 MB (for iGPU exclusively)

Expansion Slots

AMD Ryzen™ 5000 Series/ 5000 G-Series/ 4000 G-Series/ 3000 Series/ 3000 G-Series Desktop Processors

1 x PCIe 3.0 x16 slot (supports x16 mode)

AMD A520 Chipset

2 x PCIe 3.0 x1 slots

1 x PCIe x16,2 x PCIe 2.0 x1

Software Features

ASUS Exclusive Software

Armoury Crate

- Aura Creator

- Aura Sync

AI Suite 3

- Performance And Power Saving Utility

TurboV EVO

EPU

Digi+ VRM

Fan Xpert 2+

- EZ update

ASUS CPU-Z

AI Charger

DAEMON Tools

Norton Anti-virus software (Free Trial version)

WinRAR

UEFI BIOS

ASUS EZ DIY

- ASUS CrashFree BIOS 3

- ASUS EZ Flash 3

- ASUS UEFI BIOS EZ Mode

Accessories

Cables

2 x SATA 6Gb/s cables

Miscellaneous

1 x I/O Shield

1 x M.2 SSD screw package

Installation Media

1 x Support DVD

Documentation

1 x User manual

2 x SATA 6Gb/s cable(s),User´s manual,I/O Shield,2 x SATA 6Gb/s cable(s)

Storage

AMD Ryzen™ 5000 Series/ 5000 G-Series/ 4000 G-Series/ 3000 Series/ 3000 G-Series Desktop Processors

M.2 slot (Key M), type 2242/2260/2280 (supports PCIe 3.0 x4 & SATA modes)

AMD A520 Chipset

4 x SATA 6Gb/s ports

Support Raid 0, 1, 10

Intel® H81 chipset : ,Supports Intel® Rapid Start Technology, Intel® Smart Connect Technology *1,2 x SATA 6Gb/s port(s), yellow,,2 x SATA 3Gb/s port(s), dark brown,

LAN

Realtek® 8111G, 1 x Gigabit LAN Controller(s)

Graphics

1 x DisplayPort 1.2
1 x HDMI™ 2.1(4K@60Hz)
1 x D-Sub
* Graphics specifications may vary between CPU types

USB Ports

2 x USB 3.1 Gen 1 port(s) (2 at back panel, blue),Intel® H81 chipset :,6 x USB 2.0 port(s) (2 at back panel, black, 4 at mid-board)

USB

4 x USB 3.2 Gen 1 ports (4 x Type-A)

2 x USB 2.0 ports (2 x Type-A)


1 x USB 3.2 Gen 1 header supports additional 2 USB 3.2 Gen 1 ports

2 x USB 2.0 headers support additional 4 USB 2.0 ports

Internal I/O Connectors

Fan and cooling related

1 x 4-pin CPU Fan header

2 x 4-pin Chassis Fan headers

Power related

1 x 24-pin Main Power connector

1 x 8-pin +12V Power connector

Storage related

1 x M.2 slot (Key M)

4 x SATA 6Gb/s ports

USB

1 x USB 3.2 Gen 1 header supports additional 2 USB 3.2 Gen 1 ports

2 x USB 2.0 headers support additional 4 USB 2.0 ports

Miscellaneous

2 x AURA Addressable Gen 2 header

2 x AURA RGB headers

1 x Clear CMOS header

1 x COM Port header

1 x Front Panel Audio header (AAFP)

1 x S/PDIF Out header

1 x Speaker header

1 x SPI TPM header (14-1pin)

1 x 10-1 pin System Panel header

Operating System Support

Windows® 8,Windows® 7

Back I/O Ports

2 x USB 3.2 Gen 1 (blue),1 x PS/2 keyboard (purple),1 x PS/2 mouse (green),1 x DVI,1 x D-Sub,1 x LAN (RJ45) port(s),2 x USB 2.0,3 x Audio jack(s)

Internal I/O Ports

2 x SATA 3Gb/s connector(s),2 x SATA 6Gb/s connector(s),2 x USB 2.0 connector(s) support(s) additional 4 USB 2.0 port(s),1 x CPU Fan connector(s) (1 x 4-pin),1 x Chassis Fan connector(s) (1 x 4-pin),1 x S/PDIF out header(s),1 x 24-pin EATX Power connector(s),1 x 4-pin ATX 12V Power connector(s),1 x Front panel connector(s),1 x Front panel audio connector(s) (AAFP),1 x Internal speaker connector(s),1 x Clear CMOS jumper(s)

BIOS

128 Mb Flash ROM, UEFI AMI BIOS
64 Mb Flash ROM, UEFI AMI BIOS, PnP, DMI2.0, WfM2.0, SM BIOS 2.7, ACPI 2.0a, Multi-language BIOS, ASUS EZ Flash 2, ASUS CrashFree BIOS 3, My Favorites, Quick Note, Last Modified log, F12 PrintScreen, F3 Shortcut functions and ASUS DRAM SPD (Serial Presence Detect) memory information

Operating System

Windows 10 64bit

Support Disc

Drivers
ASUS Utilities
EZ Update
Anti-virus software (OEM version)

Form Factor

8.9 inch x 6.9 inch ( 22.6 cm x 17.5 cm ),uATX Form Factor

Note

*1-1:Due to the limitation of the Intel® H81chipset, Intel® Rapid Start Technology can be configured only from the BIOS Setup program.
*1-2:These functions will work depending on the CPU installed.
*2:Use a chassis with HD audio module in the front panel to support an 8-channel audio output.
    • Specifications and features vary by model, and all images are illustrative. Please refer specification pages for full details.
    • *Precise specifications and features vary by model . Please refer to the specification page
    • The product (electrical , electronic equipment, Mercury-containing button cell battery) should not be placed in municipal waste. Check local regulations for disposal of electronic products.
    • The use of trademark symbol (TM, ®) appears on this website means that the word text, trademarks, logos or slogans, is being used as trademark under common laws protection and/or registered as Trademark in U.S. and/or other country/region.
    • Learn more about battery usage, removal, replacement, and related safety guidelines

         **Product specifications and battery design may vary depending on the model. For any questions, please contact ASUS official customer service.

    • Specifications and features vary by model, and all images are illustrative. Please refer specification pages for full details.
    • *Precise specifications and features vary by model. Please refer to the specification page
    • The product (electrical , electronic equipment, Mercury-containing button cell battery) should not be placed in municipal waste. Check local regulations for disposal of electronic products.
    • The use of trademark symbol (TM, ®) appears on this website means that the word text, trademarks, logos or slogans, is being used as trademark under common laws protection and/or registered as Trademark in U.S. and/or other country/region.
    • Learn more about battery usage, removal, replacement, and related safety guidelines

         **Product specifications and battery design may vary depending on the model. For any questions, please contact ASUS official customer service.