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B450M/ac, AMD B450 Chipset, AM4, HDMI, microATX Motherboard

SKU: 12946262

Manufacturer: ASROCK

MPN: B450M/AC

Availability: Available


Price: $96.09
or as low as $3/month
Quantity:

ASRock B450M/ac. 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.

  • AMD AM4 Socket
  • Supports DDR4 3200+ (OC)
  • 1 PCIe 3.0 x16, 1 PCIe 2.0 x16
  • AMD Quad CrossFireX™
  • Graphics Output: HDMI
  • 7.1 CH HD Audio (Realtek ALC892 Audio Codec), ELNA Audio Caps
  • 4 SATA3, 1 Ultra M.2 (PCIe Gen3 x4)*
  • 6 x USB 3.1 Gen1 (2 Front, 4 Rear)
  • Realtek Gigabit LAN
  • ASRock Polychrome SYNC
    *Actual support may vary by CPU.
Unique Feature ASRock Super Alloy
- Premium 42A Power Choke
- Sapphire Black PCB
- High Density Glass Fabric PCB
- 2oz Copper PCB
Intel® 802.11ac WiFi
ASRock Ultra M.2 (PCIe Gen3 x4)
ASRock Full Spike Protection (for all USB, Audio, LAN Ports)
ASRock Live Update & APP Shop
CPU - AMD AM4 Socket
- Digi Power design
- 9 Power Phase design
Chipset - AMD Promontory B450
Memory

- Dual Channel DDR4 Memory Technology
- 4 x DDR4 DIMM Slots
- 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*
- Max. capacity of system memory: 64GB**
- 15μ Gold Contact in DIMM Slots

*For Ryzen Series CPUs (Picasso and Raven Ridge), ECC is only supported with PRO CPUs.
Please refer to below table for AMD non-XMP memory frequency support.

Ryzen Series CPUs (Matisse):

UDIMM Memory Slot Frequency(MHZ)
A1 A2 B1 B2
- SR - - 3200
- DR - - 3200
- SR - SR 3200
- DR - DR 3200
SR SR SR SR 2933
SR-DR DR SR-DR DR 2667
SR-DR SR-DR SR-DR SR-DR 2667

Ryzen Series CPUs (Pinnacle Ridge):

UDIMM Memory Slot Frequency(MHZ)
A1 A2 B1 B2
- SR - - 2933
- DR - - 2933
- SR - SR 2933
- DR - DR 2933
SR SR SR SR 2933
SR-DR DR SR-DR DR 2667
SR-DR SR-DR SR-DR SR-DR 2133-2400

Ryzen Series CPUs (Picasso):

UDIMM Memory Slot Frequency(MHZ)
A1 A2 B1 B2
- SR - - 2933
- DR - - 2667
- SR - SR 2667
- DR - DR 2400
SR SR SR SR 2133
SR-DR DR SR-DR DR 1866
SR-DR SR-DR SR-DR SR-DR 1866

Ryzen Series CPUs (Summit Ridge):

UDIMM Memory Slot Frequency(MHZ)
A1 A2 B1 B2
- SR - - 2667
- DR - - 2667
- SR - SR 2667
- DR - DR 2667
SR SR SR SR 2667
SR-DR DR SR-DR DR 2667
SR-DR SR-DR SR-DR SR-DR 2133-2400

Ryzen Series CPUs (Raven Ridge):

UDIMM Memory Slot Frequency(MHZ)
A1 A2 B1 B2
- SR - - 2933
- DR - - 2667
- SR - SR 2667
- DR - DR 2667
SR SR SR SR 2667
SR-DR DR SR-DR DR 2667
SR-DR SR-DR SR-DR SR-DR 2133-2400

SR: Single rank DIMM, 1Rx4 or 1Rx8 on DIMM module label
DR: Dual rank DIMM, 2Rx4 or 2Rx8 on DIMM module label

**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.

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
Graphics - 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.
Audio - 7.1 CH HD Audio with Content Protection (Realtek ALC892 Audio Codec)
- Premium Blu-ray Audio support
- Supports Surge Protection
- ELNA Audio Caps
LAN - PCIE x1 Gigabit LAN 10/100/1000 Mb/s
- Realtek RTL8111H
- Supports Wake-On-LAN
- Supports Lightning/ESD Protection
- Supports Energy Efficient Ethernet 802.3az
- Supports PXE
Wireless LAN - Intel® 802.11ac WiFi Module
- Supports IEEE 802.11a/b/g/n/ac
- Supports Dual-Band (2.4/5 GHz)
- Supports high speed wireless connections up to 433Mbps
- Supports Bluetooth 4.2 / 3.0 + High speed class II
Slots AMD Ryzen series CPUs (Matisse, Summit Ridge and Pinnacle Ridge)
- 1 x PCI Express 3.0 x16 Slot (PCIE1: x16 mode)*
- 1 x PCI Express 2.0 x16 Slot (PCIE2: x4 mode)
AMD Ryzen series CPUs (Picasso, Raven Ridge)
- 1 x PCI Express 3.0 x16 Slot (PCIE1: x8 mode)*
- 1 x PCI Express 2.0 x16 Slot (PCIE2: x4 mode)
AMD Athlon series CPUs
- 1 x PCI Express 3.0 x16 Slot (PCIE1: x4 mode)*
- 1 x PCI Express 2.0 x16 Slot (PCIE2: x4 mode)
- Supports AMD Quad CrossFireX™ and CrossFireX™
- 1 x Vertical M.2 Socket (Key E) with the bundled WiFi-802.11ac module (on the rear I/O)

*Supports NVMe SSD as boot disks
Storage - 4 x SATA3 6.0 Gb/s Connectors, support RAID (RAID 0, RAID 1 and RAID 10), NCQ, AHCI and Hot Plug
- 1 x Ultra M.2 Socket (M2_1), supports M Key type 2242/2260/2280 M.2 PCI Express module up to Gen3 x4 (32 Gb/s) (with Matisse, Picasso, Summit Ridge, Raven Ridge and Pinnacle Ridge) or Gen3 x2 (16 Gb/s) (with Athlon 2xxGE series APU)*

*Supports NVMe SSD as boot disks
Supports ASRock U.2 Kit
Connector - 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 24 pin ATX Power Connector
- 1 x 8 pin 12V Power Connector
- 1 x Front Panel Audio Connector
- 1 x AMD LED Fan USB Header
- 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)

*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.
Rear Panel I/O - 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
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
Accessories - Quick Installation Guide, Support CD, I/O Shield
- 2 x SATA Data Cables
- 2 x ASRock WiFi 2.4/5 GHz Antennas
- 1 x Screw for M.2 Socket
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
Form Factor - Micro ATX Form Factor: 9.6-in x 9.6-in, 24.4 cm x 24.4 cm
- 2oz Copper PCB
- Solid Capacitor design
OS - Microsoft® Windows® 10 64-bit
Certifications - FCC, CE
- ErP/EuP ready (ErP/EuP ready power supply is required)