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.
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.
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.
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.
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.
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
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
Using only carefully selected copper materials for PCB layers, 2oz Copper PCB delivers lower temperature and higher energy efficiency for overclocking.
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
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.
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.
|CPU Socket Type||AM4|
|CPU Type||Ryzen / Athlon Series|
|Chipset||AMD Promontory B450|
|Audio Chipset||Realtek ALC892|
|Audio Channels||7.1 Channels|
|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|
|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
|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.
|Form Factor||Micro ATX|
|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
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
- 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:
- ASRock A-Tuning
- ASRock Polychrome SYNC
- ASRock XFast LAN
- ASRock Full HD UEFI
- ASRock Instant Flash
- ASRock Easy RAID Installer
* These utilities can be downloaded from ASRock Live Update & APP Shop.
- Drivers, Utilities, AntiVirus Software (Trial Version), Google Chrome Browser and Toolbar
- 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
- Microsoft Windows 10 64-bit
- FCC, CE
- ErP/EuP ready (ErP/EuP ready power supply is required)
- 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
|Date First Available||June 17, 2019|