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ASRock B450M Steel Legend

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Out of stock


  • Form Factor: mATX
  • Socket: AM4 (Ryzen 2000, 3000, 4000, 5000 series)
  • Memory Type: DDR4
  • RAM Slot: 4
  • SATA Port: 4
  • M.2 Slot: 2 (1x Gen3, 1x m2 SATA)
  • Display Connector: HDMI, DP
  • WiFi/Bluetooth: None
  • 3-Pin ARGB Sync: Yes

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Socket

AM4

Brand

ASRock

Form Factor

mATX

Memory Type

DDR4

Unique Feature ASRock USB 3.2 Gen2
– ASRock USB 3.2 Gen2 Type-A Port (10 Gb/s)
– ASRock USB 3.2 Gen2 Type-C Port (10 Gb/s)
ASRock Super Alloy
– XXL Aluminum Alloy Heatsink
– Premium 60A Power Choke
– Nichicon 12K Black Caps (100% Japan made high quality conductive polymer capacitors)
– I/O Armor
– Sapphire Black PCB
– High Density Glass Fabric PCB
– 2oz Copper PCB
ASRock Steel Slot
ASRock Ultra M.2 (PCIe Gen3 x4)
ASRock Full Spike Protection (for all USB, Audio, LAN Ports)
ASRock Live Update & APP Shop
CPU – Supports AMD AM4 Socket Ryzen™ 2000, 3000, 4000 G-Series, 5000 and 5000 G-Series Desktop Processors
– Digi Power design
– 6 Power Phase design
Chipset – AMD Promontory B450
Memory – Dual Channel DDR4 Memory Technology
– 4 x DDR4 DIMM Slots
– up to 3600mhz
– Max. capacity of system memory: 128GB**
– Supports Extreme Memory Profile (XMP) memory modules
– 15μ Gold Contact in DIMM Slots
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.**
– Dual graphics output: Support HDMI and DisplayPort 1.2 ports by independent display controllers
– Supports HDMI 1.4 with max. resolution up to 4K x 2K (4096×2160) @ 24Hz / (3840×2160) @ 30Hz
– Supports DisplayPort 1.2 with max. resolution up to 4K x 2K (4096×2160) @ 60Hz
– 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 and DisplayPort 1.2 Ports
– Supports 4K Ultra HD (UHD) playback with HDMI 1.4 and DisplayPort 1.2 Ports

*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 ALC892/897 Audio Codec)
– Supports Surge Protection
– PCB Isolate Shielding
– Individual PCB Layers for R/L Audio Channel
– Gold Audio Jacks
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
Slots AMD Ryzen series CPUs (Vermeer, Matisse, Cezanne, Renoir, Summit Ridge and Pinnacle Ridge)
– 1 x PCI Express 3.0 x16 Slot (PCIE2: x16 mode)*
– 1 x PCI Express 2.0 x16 Slot (PCIE3: x4 mode)
AMD Ryzen series CPUs (Picasso, Raven Ridge)
– 1 x PCI Express 3.0 x16 Slot (PCIE2: x8 mode) (If you use Athlon 2xxGE series APU, PCIE2 slot will run at x4 mode.)
– 1 x PCI Express 2.0 x16 Slot (PCIE3: x4 mode)
AMD Athlon series CPUs
– 1 x PCI Express 3.0 x16 Slot (PCIE2: x4 mode)*
– 1 x PCI Express 2.0 x16 Slot (PCIE3: x4 mode)- 1 x PCI Express 2.0 x1 Slot
– Supports AMD Quad CrossFireX™ and CrossFireX™

*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 Vermeer, Matisse, Cezanne, Renoir, Picasso, Summit Ridge, Raven Ridge and Pinnacle Ridge) or Gen3 x2 (16 Gb/s) (with Athlon series APU and Raven Ridge 2)**
– 1 x M.2 Socket (M2_2), supports M Key type 2230/2242/2260/2280 M.2 SATA3 6.0 Gb/s module

*M2_2 and SATA3_3 share lanes. If either one of them is in use, the other one will be disabled.

**Supports NVMe SSD as boot disks
Supports ASRock U.2 Kit

Connector – 1 x COM Port Header
– 1 x TPM Header
– 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 CPU/Water Pump Fan Connector (4-pin) (Smart Fan Speed Control)*****
– 3 x Chassis/Water Pump Fan Connectors (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
– 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 CPU/Water Pump Fan supports the water cooler fan of maximum 2A (24W) fan power.

******The Chassis/Water Pump Fan supports the water cooler fan of maximum 2A (24W) fan power.
CPU_FAN2/WP, CHA_FAN1/WP, CHA_FAN2/WP and CHA_FAN3/WP can auto detect if 3-pin or 4-pin fan is in use.

Rear Panel I/O – 1 x PS/2 Mouse/Keyboard Port
– 1 x HDMI Port
– 1 x DisplayPort 1.2
– 1 x Optical SPDIF Out Port
– 2 x USB 2.0 Ports (Supports ESD Protection)
– 1 x USB 3.2 Gen2 Type-A Port (10 Gb/s) (Supports ESD Protection)
– 1 x USB 3.2 Gen2 Type-C Port (10 Gb/s) (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: Rear Speaker / Central / Bass / Line in / Front Speaker / Microphone (Gold Audio Jacks)
Software and UEFI Software
– ASRock Motherboard Utility (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.
Accessories – Quick Installation Guide, Support CD, I/O Shield
– 2 x SATA Data Cables
– 2 x Screws for M.2 Sockets
Hardware Monitor – Temperature Sensing: CPU, CPU/Water Pump, Chassis/Water Pump Fans
– Fan Tachometer: CPU, CPU/Water Pump, Chassis/Water Pump Fans
– Quiet Fan (Auto adjust chassis fan speed by CPU temperature): CPU, CPU/Water Pump, Chassis/Water Pump Fans
– Fan Multi-Speed Control: CPU, CPU/Water Pump, 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
OS – Microsoft® Windows® 10 64-bit / 11 64-bit*