Asrock B550 Steel legend motherboard

15,450

Availability: 2 in stock

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  • Supports AMD AM4 Socket Ryzen™ 3000, 3000 G-Series, 4000 G-Series, 5000 and 5000 G-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
    *Not compatible with AMD Athlon™ Processors.

Asrock B550 Steel legend motherboard specs - 1Asrock B550 Steel legend motherboard specs - 2Asrock B550 Steel legend motherboard specs - 3Asrock B550 Steel legend motherboard specs - 4Asrock B550 Steel legend motherboard specs - 5Asrock B550 Steel legend motherboard specs - 6

Asrock B550 Steel legend motherboard specs - 7

Asrock B550 Steel legend motherboard technical specs

Product NameAsrock B550 Steel legend
Model NumberB550 STEEL LEGEND
Unique FeatureASRock 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
CPUSupports AMD AM4 Socket Ryzen™ 3000,
3000 G-Series, 4000 G-Series, 5000 and
5000 G-Series Desktop Processors*
Digi Power design
14 Power Phase design

*Not compatible with AMD Athlon™
Processors.

ChipsetAMD B550
MemoryDual Channel DDR4 Memory Technology
4 x DDR4 DIMM Slots
AMD Ryzen series CPUs (Vermeer) supports:
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 CPUs (Matisse) supports:
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 (Cezanne) supports:
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 (Renoir) supports:
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 (Picasso) supports:
DDR4 3600+(OC) / 3466(OC) / 3200(OC) /
2933 / 2667 / 2400 / 2133
non-ECC, un-buffered memory*

Max. capacity of system memory: 128GB**
Supports Extreme Memory Profile
(XMP) memory modules
15μ Gold Contact in DIMM Slots

*For Ryzen Series APUs
(Picasso, Cezanne and Renoir),
ECC is only supported with PRO CPUs.

**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.

BIOS256Mb 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
GraphicsIntegrated 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 max:
up to 4K x 2K (4096×2160) @ 60Hz
Supports DisplayPort 1.4 max:
up to 5K (5120×2880)@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.

***Picasso supports HDCP 2.2 with
HDMI 2.0 Port

Audio7.1 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
LAN2.5 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
SlotsAMD Ryzen series CPUs
(Vermeer and Matisse):
2 x PCI Express x16 Slots
(PCIE1: Gen4x16 mode;
PCIE3: Gen3 x4 mode)*
AMD Ryzen series APUs
(Cezanne and Renoir):
2 x PCI Express x16 Slots
(PCIE1: Gen3x16 mode;
PCIE3: Gen3 x4 mode)*
AMD Ryzen series APUs (Picasso):
2 x PCI Express x16 Slots
(PCIE1: Gen3x8 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 PCIe WiFi module
15μ Gold Contact in VGA PCIe Slot (PCIE1)

*Supports NVMe SSD as boot disks

Storage6 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 Vermeer, Matisse) or Gen3x4 (32 Gb/s)
(with Cezanne, Renoir and Picasso)**
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

Connector1 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/O2 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 UEFISoftware
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 CDDrivers
Utilities
AntiVirus Software (Trial Version)
Google Chrome Browser and Toolbar
AccessoriesQuick Installation Guide
Support CD
2 x SATA Data Cables
3 x Screws for M.2 Sockets
2 x Standoffs for M.2 Sockets
Hardware MonitorTemperature 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 FactorATX Form Factor:
12.0-in x 9.6-in (30.5 cm x 24.4 cm)
2oz Copper PCB
OSMicrosoft® Windows® 10 64-bit / 11 64-bit
CertificationsFCC, CE
ErP/EuP ready
(ErP/EuP ready power supply is required)

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Brand

Platform

Chipset

AMD B550

Socket type

Max memory support

128 GB

Form factor

ATX

Warranty

3 Years

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All images and descriptions are for illustrative purposes only. Visual representation of the products may not be perfectly accurate., Product specification, functions and appearance may vary by models and differ from country to country., All specifications are subject to change without notice., Product details mentioned above may contain typography or photography errors, please check with us for exact offers.

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