Asrock B550 Steel Legend

Introducing B550 Chipset with the most efficient and reliable series of the ASRock lineup. Asrock B550 steel legend comes with tonnes of features without burning a hole in your pocket.
Supports AMD AM4 Socket Ryzen™ 3000, 4000 G-Series and 5000 Series Desktop Processors* 14 Power Phase Design, Digi Power, Dr. MOS Supports DDR4 4733+ (OC) 1 PCIe 4.0 x16, 1 PCIe 3.0 x16, 2 PCIe 3.0 x1, 1 M.2 Key E for WiFi Graphics Output Options: HDMI, DisplayPort AMD CrossFireX™ 7.1 CH HD Audio (Realtek ALC1220 Audio Codec), Nahimic Audio 6 SATA3, 1 Hyper M.2 (PCIe Gen4 x4), 1 M.2 (PCIe Gen3 x2 & SATA3) 2 USB 3.2 Gen2 (Rear Type A+C), 5 USB 3.2 Gen1 (2 Front, 2 Rear, 1 Front Type-C) Dragon 2.5G LAN

FEATURES

• Supports AMD AM4 Socket Ryzen™ 3000, 4000 G-Series and 5000 Series Desktop Processors
• 14 Power Phase Design, Digi Power, Dr. MOS
• Supports DDR4 4733+ (OC)
• 1 PCIe 4.0 x16, 1 PCIe 3.0 x16, 2 PCIe 3.0 x1, 1 M.2 Key E for WiFi
• Graphics Output Options: HDMI, DisplayPort
• AMD CrossFireX™
• 7.1 CH HD Audio (Realtek ALC1220 Audio Codec), Nahimic Audio
• 6 SATA3, 1 Hyper M.2 (PCIe Gen4 x4), 1 M.2 (PCIe Gen3 x2 & SATA3)
• 2 USB 3.2 Gen2 (Rear Type A+C), 5 USB 3.2 Gen1 (2 Front, 2 Rear, 1 Front Type-C)
• Dragon 2.5G LAN

SPECIFICATIONS

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

 - 50A Dr.MOS

- Premium Memory Alloy Choke (Reduces 70% core loss compared to iron powder choke)

 - Nichicon 12K Black Caps (100% Japan made high quality conductive polymer capacitors)

 - I/O Armor

 - Matte Black PCB

 - High Density Glass Fabric PCB

 - 2oz Copper PCB

 - 2.5G LAN

-ASRock Steel Slot Gen4

 -ASRock Full Coverage M.2 Heatsink

 -ASRock Hyper M.2 (PCIe Gen4x4)

- ASRock Ultra USB Power

- ASRock Full Spike Protection (for all USB, Audio, LAN Ports)

 - ASRock Live Update & APP Shop

CPU

 - Supports AMD AM4 Socket Ryzen™ 3000, 4000 G-Series and 5000 Series Desktop Processors*

 - Digi Power design

 - 14 Power Phase design

*Not compatible with AMD Ryzen™ 5 3400G and Ryzen™ 3 3200G.

Chipset - AMD B550

Memory

 - Dual Channel DDR4 Memory Technology

 - 4 x DDR4 DIMM Slots

 - AMD Ryzen series CPUs (Matisse) support DDR4 4733+(OC) / 4666(OC) / 4600(OC) /

 4533(OC) / 4466(OC) / 4400(OC) / 4333(OC) / 4266(OC) / 4200(OC) / 4133(OC) / 4000(OC) /

 3866(OC) / 3800(OC)/ 3733(OC) / 3600(OC) / 3466(OC) / 3200 / 2933 / 2667 / 2400 / 2133

 ECC & non-ECC, un-buffered memory*

 - AMD Ryzen series APUs support DDR4 4733+(OC) / 4666(OC) / 4600(OC) / 4533(OC) / 4466(OC) /

4400(OC) / 4333(OC) / 4266(OC) / 4200(OC) / 4133(OC) / 4000(OC) / 3866(OC) / 3800(OC) / 3733(OC) /

3600(OC) / 3466(OC) / 3200 / 2933 / 2667 / 2400 / 2133 ECC & non-ECC, un-buffered memory*

 - Max. capacity of system memory: 128GB**

 - Supports Extreme Memory Profile (XMP) memory modules

 - 15μ Gold Contact in DIMM Slots

**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

- 256Mb AMI UEFI Legal BIOS with GUI support

- Supports "Plug and Play"

- ACPI 5.1 compliance wake up events

- Supports jumperfree

 - SMBIOS 2.3 support

- CPU, CPU VDDCR_SOC, DRAM, VPPM, VTT_DDR Offset, CPU VDD 1.8 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 1.4 ports by independent

 display controllers

- Supports HDMI 2.1 with max. resolution up to 4K x 2K (4096x2160) @ 60Hz

- Supports DisplayPort 1.4 with max. resolution up to 5K (5120x2880)@120Hz

- Supports Auto Lip Sync, Deep Color (12bpc), xvYCC and HBR (High Bit Rate Audio) with HDMI 2.1 Port (Compliant HDMI monitor is required)

- Supports HDR (High Dynamic Range) with HDMI 2.1

- Supports HDCP 2.3 with HDMI 2.1 and DisplayPort 1.4 Ports

- Supports 4K Ultra HD (UHD) playback with HDMI 2.1 and DisplayPort 1.4 Ports

- Supports Microsoft® PlayReady

*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 ALC1220 Audio Codec)

- Premium Blu-ray Audio support

- Supports Surge Protection

- 120dB SNR DAC with Differential Amplifier

- NE5532 Premium Headset Amplifier for Front Panel Audio

 Connector (Supports up to 600 Ohm headsets)

- Pure Power-In

- Direct Drive Technology

- PCB Isolate Shielding

- Impedance Sensing on Rear Out port

- Individual PCB Layers for R/L Audio Channel

- Gold Audio Jacks

- 15μ Gold Audio Connector

- Nahimic Audio

LAN

- 2.5 Gigabit LAN 10/100/1000/2500 Mb/s

- Dragon RTL8125BG

- Supports Dragon 2.5G LAN Software

- Smart Auto Adjust Bandwidth Control

- Visual User Friendly UI

- Visual Network Usage Statistics

- Optimized Default Setting for Game, Browser, and Streaming Modes

- User Customized Priority Control

- Supports Wake-On-LAN

- Supports Lightning/ESD Protection

- Supports Energy Efficient Ethernet 802.3az

- Supports PXE

Slots

AMD Ryzen series CPUs (Matisse)

- 2 x PCI Express x16 Slots (PCIE1: Gen4x16 mode; PCIE3: Gen3 x4 mode)*

AMD Ryzen series APUs

- 2 x PCI Express x16 Slots (PCIE1: Gen3x16 mode; PCIE3: Gen3 x4 mode)*

- 2 x PCI Express 3.0 x1 Slots

- Supports AMD Quad CrossFireX™ and CrossFireX™

- 1 x M.2 Socket (Key E), supports type 2230 WiFi/BT module

- 15μ Gold Contact in VGA PCIe Slot (PCIE1)

*Supports NVMe SSD as boot disks

Storage

- 6 x SATA3 6.0 Gb/s Connectors, support RAID (RAID 0, RAID 1 and RAID 10),

 NCQ, AHCI and Hot Plug*

- 1 x Hyper M.2 Socket (M2_1), supports M Key type 2230/2242/2260/2280 M.2

PCI Express module up to Gen4x4 (64 Gb/s) (with Matisse) or Gen3x4 (32 Gb/s)**

- 1 x M.2 Socket (M2_2), supports M Key type 2230/2242/2260/2280/22110 M.2 SATA3

6.0 Gb/s module and M.2 PCI Express module up to Gen3 x2 (16 Gb/s)**

*M2_2 and SATA3_5_6 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 SPI TPM Header

- 1 x Power LED and Speaker Header

- 2 x RGB LED Headers*

- 2 x Addressable LED Headers**

- 1 x CPU Fan Connector (4-pin)***

- 1 x CPU/Water Pump Fan Connector (4-pin) (Smart Fan Speed Control)****

- 5 x Chassis/Water Pump Fan Connectors (4-pin) (Smart Fan Speed Control)*****

- 1 x 24 pin ATX Power Connector (Hi-Density Power Connector)

- 1 x 8 pin 12V Power Connector (Hi-Density Power Connector)

- 1 x 4 pin 12V Power Connector (Hi-Density Power Connector)

- 1 x Front Panel Audio Connector (15μ Gold 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)

- 1 x Front Panel Type C USB 3.2 Gen1 Header (Supports ESD Protection)

- 1 x Dr. Debug with LED

*Support in total up to 12V/3A, 36W LED Strip

**Support in total up to 5V/3A, 15W LED Strip

***The CPU Fan Connector supports the CPU fan of maximum 1A (12W) fan power.

****CPU_FAN2/WP_3A supports the water cooler fan of maximum 3A (36W) fan power.

*****The Chassis/Water Pump Fan supports the water cooler fan of maximum 2A (24W) fan power.

CPU_FAN2/WP_3A, CHA_FAN1/WP, CHA_FAN2/WP, CHA_FAN3/WP, CHA_FAN4/WP and CHA_FAN5/WP can auto detect if 3-pin or 4-pin fan is in use.

Rear Panel I/O - 2 x Antenna Mounting Points

- 1 x PS/2 Mouse/Keyboard Port

- 1 x HDMI Port

- 1 x DisplayPort 1.4

- 1 x Optical SPDIF Out Port

- 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)

- 2 x USB 3.2 Gen1 Ports (Supports ESD Protection)

- 4 x USB 2.0 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)

*Ultra USB Power is supported on USB_34 ports.

ACPI wake-up function is not supported on USB_34 ports.

Software and UEFI

Software

- ASRock Motherboard Utility (A-Tuning)

- ASRock Dragon 2.5G LAN Software

- ASRock Polychrome SYNC*

UEFI

- ASRock Full HD UEFI

- ASRock Instant Flash

*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 - 2 x SATA Data Cables - 3 x Screws for M.2 Sockets - 2 x Standoffs 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 - Voltage monitoring: +12V, +5V, +3.3V, CPU Vcore, CPU VDDCR_SOC, DRAM, VPPM, CPU VDD 1.8V

Form Factor - ATX Form Factor: 12.0-in x 9.6-in, 30.5 cm x 24.4 cm - 2oz Copper PCB

OS - Microsoft® Windows® 10 64-bit

Certifications FCC, CE - ErP/EuP ready (ErP/EuP ready power supply is required)

Warranty 3 Years