ASROCK B450M Steel Legend motherboard

• Supports AMD AM4 Socket Ryzen™ 2000, 3000 and 5000 Series Desktop Processors
• Supports DDR4 3533+ (OC)
• 1 PCIe 3.0 x16, 1 PCIe 2.0 x16, 1 PCIe 2.0 x1
• AMD Quad CrossFireX™
• Graphics Output: DisplayPort, HDMI
• 7.1 CH HD Audio (Realtek ALC892/897 Audio Codec)
• 4 SATA3, 1 Ultra M.2 (PCIe Gen3 x4), 1 M.2 (SATA3)
• 2 USB 3.1 Gen2 (Rear Type-A+C)
• 6 USB 3.1 Gen1 (2 Front, 4 Rear)
• Realtek Gigabit LAN

*For Ryzen Series APUs (Picasso, Renoir 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 (Vermeer):
Ryzen Series CPUs (Matisse):
Ryzen Series APUs (Renoir):
Ryzen Series CPUs (Pinnacle Ridge):

Ryzen Series CPUs (Picasso):
Ryzen Series CPUs (Summit Ridge):
Ryzen Series CPUs (Raven Ridge):

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-adjustmentGraphics- 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 JacksLAN- 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 PXESlotsAMD Ryzen series CPUs (Vermeer, Matisse, 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 disksStorage- 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, 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 KitConnector- 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 3.1 Gen1 Header (Supports 2 USB 3.1 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 3.1 Gen2 Type-A Port (10 Gb/s) (Supports ESD Protection)
– 1 x USB 3.1 Gen2 Type-C Port (10 Gb/s) (Supports ESD Protection)
– 4 x USB 3.1 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 UEFISoftware
– 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.Support CD- Drivers, Utilities, AntiVirus Software (Trial Version), Google Chrome Browser and ToolbarAccessories- Quick Installation Guide, Support CD, I/O Shield
– 2 x SATA Data Cables
– 2 x Screws for M.2 SocketsHardware 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, VcoreForm Factor- Micro ATX Form Factor: 9.6-in x 9.6-in, 24.4 cm x 24.4 cmOS- Microsoft® Windows® 10 64-bitCertifications- FCC, CE
– ErP/EuP ready (ErP/EuP ready power supply is required)Warranty3 YearsNote*Price, feature and specifications are subject to change without notice.