ASRock B450M/AC AM4 AMD Promontory B450 SATA 6Gb/s Micro ATX AMD Motherboard


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Sale priceDhs. 471.69
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In stock

ASRock Logo
ASRock B450M_ac Motherboard Standing Up, Angled to the Right

ASRock B450M/ac Motherboard

Powered by the AMD B450M chipset, this motherboard works flawlessly with the latest 3rd generation AMD Ryzen processors based on Zen 2 micro architecture as well as 2nd/1st generation Ryzen processors. This micro ATX board has quad DIMM slots, dual PCIe x16 slots, an Ultra M.2 slot, and a GbE LAN port—enough for you to build a gaming rig or home entertainment PC. 802.11ac Wi-Fi and Bluetooth are built onboard for wireless convenience out of the box. Super Alloy guarantees unbeatable reliability and durability to withstand harsh environments. Moreover, you can connect RGB and addressable RGB gadgets, and synchronize them with Polychrome RGB Sync-certified accessories for unified, harmonious lighting that's awesome to behold.

  • AMD AM4 Socket
  • Supports DDR4 3200+ (OC)
  • 1x PCIe 3.0 x16, 1x PCIe 2.0 x16
  • AMD Quad CrossFireX
  • Graphics Output: HDMI
  • 7.1 CH HD Audio (Realtek ALC892 Audio Codec), ELNA Audio Caps
  • 4x SATA3, 1x Ultra M.2 (PCIe Gen3 x4)*
  • 6x USB 3.1 Gen1 (2x Front, 4x Rear)
  • Realtek Gigabit LAN
  • ASRock Polychrome SYNC
  • Actual support may vary by CPU.
1_Polychrome RGB
Rule Your Own Lighting Way—Polychrome RGB

This motherboard features onboard RGB headers and an addressable RGB header that allow motherboard to be connected to compatible LED devices such as strip, CPU fans, coolers, chassis and so on. Users may also synchronize RGB LED devices across the Polychrome RGB Sync-certified accessories to create their own unique lighting effects.

The addressable RGB LED header supports WS2812B addressable RGB LED strip (5V/Data/GND), with a maximum power rating of 3A (5V), a max of 80 LEDs and length within 2 meters.

*The RGB LED header supports standard 5050 RGB LED strip (12V/G/R/B), with a maximum power rating of 3A (12V) and length within 2 meters.

Ultra M.2 SSD Slot on the ASRock B450M/AC AM4 Motherboard
Ultra M.2 32 Gb/s (PCIe Gen3 x4 & SATA 3)

The PCIe Gen3 x4 Ultra M.2 interface pushes data transfer speeds up to 32Gb/s. In addition, it also supports SATA3 6Gb/s M.2 modules, and is compatible with ASRock’s U.2 Kit for installing some of the world’s fastest U.2 PCIe Gen3 x4 SSDs.

Dual-Band 802.11ac WiFi Antenna on the ASRock B450M/AC AM4 Motherboard
Dual-Band 802.11ac WiFi

No one has time for weak WiFi signals and sluggish internet! That's why this motherboard comes with an 802.11ac WiFi (2.4G / 5G WiFi) module which supports wireless networks and Bluetooth v4.2.

USB 3.2 Gen1 Port
4x USB 3.2 Gen1

Delivering data transfer rates up to 10X faster than USB 2.0 with optimized power efficiency. USB 3.2 Gen1 technology advances the data transfer rate up to 5Gb/s. ASRock provides 4x USB 3.2 Gen1 ports onboard allowing you to have a stunning data transfer experience.

Graphic Text That Reads: Super Alloy Motherboard
Sapphire Black PCB Bottom-Right Corner of the ASRock B450M/AC AM4 Motherboard

Sapphire Black PCB

Pure-black PCB appearance. The new Sapphire Black PCB represents rock-solid quality and gives the motherboard a more mysterious touch.

High Density Glass Fabric PCB Versus Traditional

High-Density Glass Fabric PCB

High Density Glass Fabric PCB design reduces the gaps between the PCB layers to protect the motherboard against electrical shorts caused by humidity.

2oz Copper PCB Graphic

2oz Copper PCB

Using only carefully selected copper materials for PCB layers, 2oz Copper PCB delivers lower temperature and higher energy efficiency for overclocking.

ASRock B450M/AC AM4 Motherboard's ELNA Audio Caps

ELNA Audio Caps

Who says high quality audio is only available on high-end motherboards? ASRock applied ELNA audio capacitors on mainstream and entry-level motherboards! Compared with traditional solid caps, the leakage current of ELNA audio caps is merely 3uA. This is the key to reduce noise level significantly and satisfy even the pickiest audiophiles.

Full Spike Protection Logo

Full Spike Protection

Some sensitive digital components on the motherboard are vulnerable to power surges, and the excessive current may cause your system to malfunction immediately. ASRock Full Spike Protection includes various technologies to prevent your motherboard’s components from being damaged by these unexpected voltage spikes.

ASRock App Shop and Compatible Software Icons

Live Update & APP Shop

ASRock Live Update & APP Shop is designed for your convenience. We provide various apps and support software for users to download. You can also easily optimize your system and keep your motherboard up to date with ASRock Live Update & APP Shop.

Model
Brand ASRock
Model B450M/AC
Supported CPU
CPU Socket Type  AM4
CPU Type Ryzen / Athlon Series
Chipsets
Chipset  AMD Promontory B450
Memory
Number of Memory Slots 4×288pin
Memory Standard AMD Ryzen series CPUs (Matisse) support DDR4 3200/ 2933/ 2667/ 2400/ 2133 ECC & non-ECC, un-buffered memory*
AMD Ryzen series CPUs (Pinnacle Ridge) support DDR4 3200+(OC)/ 2933(OC)/ 2667/ 2400/ 2133 ECC & non-ECC, un-buffered memory*
AMD Ryzen series CPUs (Picasso) support DDR4 2933/ 2667/ 2400/ 2133 non-ECC, un-buffered memory*
AMD Ryzen series CPUs (Summit Ridge) support DDR4 3200+(OC)/ 2933(OC)/ 2667/ 2400/ 2133 ECC & non-ECC, un-buffered memory*
AMD Ryzen series CPUs (Raven Ridge) support DDR4 3200+(OC)/ 2933/ 2667/ 2400/ 2133 non-ECC, un-buffered memory*

* For Ryzen Series CPUs (Picasso and Raven Ridge), ECC is only supported with PRO CPUs.
Maximum Memory Supported 64GB
** Due to the operating system limitation, the actual memory size may be less than 4GB for the reservation for system usage under Windows 32-bit OS. For Windows 64-bit OS with 64-bit CPU, there is no such limitation.
Channel Supported  Dual Channel
Expansion Slots
PCI Express 3.0 x16  AMD Ryzen series CPUs (Matisse, Summit Ridge and Pinnacle Ridge)
- 1 x PCI Express 3.0 x16 Slot (PCIE1: x16 mode)*
AMD Ryzen series CPUs (Picasso, Raven Ridge)
- 1 x PCI Express 3.0 x16 Slot (PCIE1: x8 mode)*
AMD Athlon series CPUs
- 1 x PCI Express 3.0 x16 Slot (PCIE1: x4 mode)*

* Supports NVMe SSD as boot disks
PCI Express 2.0 x16 AMD Ryzen series CPUs (Summit Ridge and Pinnacle Ridge)
- 1 x PCI Express 2.0 x16 Slot (PCIE2: x4 mode)
AMD Ryzen series CPUs (Raven Ridge)
- 1 x PCI Express 2.0 x16 Slot (PCIE2: x4 mode)
AMD Athlon series CPUs
- 1 x PCI Express 2.0 x16 Slot (PCIE2: x4 mode)
Other Slots 1 x Vertical M.2 Socket (Key E) with the bundled WiFi-802.11ac module (on the rear I/O)
Storage Devices
SATA 6Gb/s  4 x SATA3 6.0Gb/s Connectors, support RAID, NCQ, AHCI and Hot Plug
M.2 1 x Ultra M.2 Socket (M2_1), supports M Key type 2242/2260/2280 M.2 PCI Express module up to Gen3 x4 (32Gb/s) (with Matisse, Picasso, Summit Ridge, Raven Ridge and Pinnacle Ridge) or Gen3 x2 (16Gb/s) (with Athlon 2xxGE series APU)*

* Supports NVMe SSD as boot disks
* Supports ASRock U.2 Kit
SATA RAID 0/1/10
Onboard Video
Onboard Video Chipset  Integrated AMD Radeon Vega Series Graphics in Ryzen Series APU*
DirectX 12, Pixel Shader 5.0
Shared memory default 2GB. Max Shared memory supports up to 16GB.**
Supports HDMI 1.4 with max. resolution up to 4K x 2K (4096x2160) @ 24Hz / (3840x2160) @ 30Hz
Supports Auto Lip Sync, Deep Color (12bpc), xvYCC and HBR (High Bit Rate Audio) with HDMI 1.4 Port (Compliant HDMI monitor is required)
Supports HDCP 1.4 with HDMI 1.4 Port
Supports 4K Ultra HD (UHD) playback with HDMI 1.4 Port

* Actual support may vary by CPU
** The Max shared memory 16GB requires 32GB system memory installed
Onboard Audio
Audio Chipset  Realtek ALC892
Audio Channels  7.1 Channels
Onboard LAN
LAN Chipset Realtek RTL8111H
Max LAN Speed 10/100/1000Mbps
Wireless LAN Intel 802.11 ac Wi-Fi Module
Supports IEEE 802.11 a/b/g/n/ac
Supports Dual-Band (2.4/5 GHz)
Supports high speed wireless connections up to 433 Mbps
Bluetooth Bluetooth 4.2 / 3.0 + High speed class II
Rear Panel Ports
Back I/O Ports 2 x Antenna Ports
1 x HDMI Port
2 x USB 2.0 Ports (Supports ESD Protection)
4 x USB 3.2 Gen1 Ports (Supports ESD Protection)
1 x RJ-45 LAN Port with LED (ACT/LINK LED and SPEED LED)
HD Audio Jacks: Line in / Front Speaker / Microphone
Internal I/O Connectors
Onboard USB 2 x USB 2.0 Headers (Support 4 USB 2.0 ports) (Supports ESD Protection)
1 x USB 3.2 Gen1 Header (Supports 2 USB 3.2 Gen1 ports) (Supports ESD Protection)
Other Connectors 1 x Chassis Intrusion Header
1 x Power LED and Speaker Header
1 x RGB LED Header*
1 x Addressable LED Header**
1 x AMD Fan LED Header***
1 x CPU Fan Connector (4-pin)****
1 x Chassis Fan Connector (3-pin)*****
1 x Chassis/Water Pump Fan Connector (4-pin) (Smart Fan Speed Control)******
1 x Front Panel Audio Connector
1 x AMD LED Fan USB Header

* Supports in total up to 12V/3A, 36W LED Strip.
** Supports in total up to 5V/3A, 15W LED Strip.
*** The AMD Fan LED Header supports LED strips of maximum load of 3A (36W) and length up to 2.5M.
**** The CPU Fan Connector supports the CPU fan of maximum 1A (12W) fan power.
***** The Chassis Fan Connector supports the chassis fan of maximum 1A (12W) fan power.
****** The Chassis/Water Pump Fan supports the water cooler fan of maximum 2A (24W) fan power.
****** CHA_FAN1 can auto detect if 3-pin or 4-pin fan is in use.
Physical Spec
Form Factor Micro ATX
LED Lighting RGB
Dimensions (W x L) 9.6" x 9.6"
Power Pin 1 x 24-pin ATX Power Connector
1 x 8-pin 12V Power Connector
Features
Features Unique Feature:
ASRock Super Alloy
- Premium 42A Power Choke
- Sapphire Black PCB
- High Density Glass Fabric PCB
- 2oz Copper PCB
Intel 802.11 ac Wi-Fi
ASRock Ultra M.2 (PCIe Gen3 x4)
ASRock Full Spike Protection (for all USB, Audio, LAN Ports)
ASRock Live Update & APP Shop

BIOS:
- 128MB AMI UEFI Legal BIOS with multilingual GUI support
- Supports "Plug and Play"
- ACPI 5.1 compliance wake up events
- Supports jumperfree
- SMBIOS 2.3 support
- DRAM Voltage multi-adjustment

Software and UEFI:
Software
- ASRock A-Tuning
- ASRock Polychrome SYNC
- ASRock XFast LAN
UEFI
- ASRock Full HD UEFI
- ASRock Instant Flash
- ASRock Easy RAID Installer
* These utilities can be downloaded from ASRock Live Update & APP Shop.

Support CD:
- Drivers, Utilities, AntiVirus Software (Trial Version), Google Chrome Browser and Toolbar

Hardware Monitor:
- Temperature Sensing: CPU, Chassis, Chassis/Water Pump Fans
- Fan Tachometer: CPU, Chassis, Chassis/Water Pump Fans
- Quiet Fan (Auto adjust chassis fan speed by CPU temperature): CPU, Chassis, Chassis/Water Pump Fans
- Fan Multi-Speed Control: CPU, Chassis, Chassis/Water Pump Fans
- CASE OPEN detection
- Voltage monitoring: +12V, +5V, +3.3V, Vcore

OS:
- Microsoft Windows 10 64-bit

Certifications:
- FCC, CE
- ErP/EuP ready (ErP/EuP ready power supply is required)
Packaging
Package Contents Accessories:
- Quick Installation Guide, Support CD, I/O Shield
- 2 x SATA Data Cables
- 2 x ASRock Wi-Fi 2.4/5 GHz Antennas
- 1 x Screw for M.2 Socket
Additional Information
Date First Available June 17, 2019

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