ASRock B550 Steel Legend Motherboard (AMD Socket AM4/3rd Gen Ryzen Series CPU/Max 128GB DDR4 4733MHz Memory)

Supports 3rd Gen AMD AM4 Ryzen / Future AMD Ryzen 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

Specification :

Unique Feature ASRock USB 3.2 Gen2
ŰŇ ASRock USB 3.2 Gen2 Type-A Port (10 Gb/s)
ŰŇ ASRock USB 3.2 Gen2 Type-C Port (10 Gb/s)
ASRock Super Alloy
ŰŇ XXL Aluminum Alloy Heatsink
ŰŇ Premium 60A Power Choke
ŰŇ 50A Dr.MOS
ŰŇ Premium Memory Alloy Choke (Reduces 70% core loss compared to iron powder choke)
ŰŇ Nichicon 12K Black Caps (100% Japan made high quality conductive polymer capacitors)
ŰŇ I/O Armor
ŰŇ Matte Black PCB
ŰŇ High Density Glass Fabric PCB
ŰŇ 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 3rd Gen AMD AM4 Ryzen / future AMD Ryzen Processors*
ŰŇ Digi Power design
ŰŇ 14 Power Phase design
*Not compatible with AMD Ryzen 5 3400G and Ryzen 3 3200G.
Chipset ŰŇ AMD B550
Memory ŰŇ Dual Channel DDR4 Memory Technology
ŰŇ 4 x DDR4 DIMM Slots
ŰŇ 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*
ŰŇ 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*
ŰŇ Max. capacity of system memory: 128GB**
ŰŇ Supports Extreme Memory Profile (XMP) memory modules
ŰŇ 15ë_ 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 ŰŇ 256Mb AMI UEFI Legal BIOS with GUI support
ŰŇ Supports Plug and Play
ŰŇ ACPI 5.1 compliance wake up events
ŰŇ Supports jumperfree
ŰŇ SMBIOS 2.3 support
ŰŇ 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*
ŰŇ DirectX 12, Pixel Shader 5.0
ŰŇ Shared memory default 2GB. Max Shared memory supports up to 16GB.**
ŰŇ Dual graphics output: support HDMI and DisplayPort 1.4 ports by independent display controllers
ŰŇ Supports HDMI 2.1 with max. resolution up to 4K x 2K (4096ĚŃ2160) @ 60Hz
ŰŇ Supports DisplayPort 1.4 with max. resolution up to 5K (5120ĚŃ2880)@120Hz
ŰŇ Supports Auto Lip Sync, Deep Color (12bpc), xvYCC and HBR (High Bit Rate Audio) with HDMI 2.1 Port (Compliant HDMI monitor is required)
ŰŇ Supports HDR (High Dynamic Range) with HDMI 2.1
ŰŇ Supports HDCP 2.3 with HDMI 2.1 and DisplayPort 1.4 Ports
ŰŇ Supports 4K Ultra HD (UHD) playback with HDMI 2.1 and DisplayPort 1.4 Ports
ŰŇ 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)
ŰŇ Premium Blu-ray Audio support
ŰŇ Supports Surge Protection
ŰŇ 120dB SNR DAC with Differential Amplifier
ŰŇ NE5532 Premium Headset Amplifier for Front Panel Audio Connector (Supports up to 600 Ohm headsets)
ŰŇ Pure Power-In
ŰŇ Direct Drive Technology
ŰŇ PCB Isolate Shielding
ŰŇ Impedance Sensing on Rear Out port
ŰŇ Individual PCB Layers for R/L Audio Channel
ŰŇ Gold Audio Jacks
ŰŇ 15ë_ Gold Audio Connector
ŰŇ Nahimic Audio
LAN ŰŇ 2.5 Gigabit LAN 10/100/1000/2500 Mb/s
ŰŇ Dragon RTL8125BG
ŰŇ Supports Dragon 2.5G LAN Software
ŰŇ Smart Auto Adjust Bandwidth Control
ŰŇ Visual User Friendly UI
ŰŇ Visual Network Usage Statistics
ŰŇ Optimized Default Setting for Game, Browser, and Streaming Modes
ŰŇ User Customized Priority Control
ŰŇ Supports Wake-On-LAN
ŰŇ Supports Lightning/ESD Protection
ŰŇ Supports Energy Efficient Ethernet 802.3az
ŰŇ Supports PXE
Slots AMD Ryzen series CPUs (Matisse)
ŰŇ 2 x PCI Express x16 Slots (PCIE1: Gen4x16 mode; PCIE3: Gen3 x4 mode)*
AMD Ryzen series APUs
ŰŇ 2 x PCI Express x16 Slots (PCIE1: Gen3x16 mode; PCIE3: Gen3 x4 mode)*
ŰŇ 2 x PCI Express 3.0 x1 Slots
ŰŇ Supports AMD Quad CrossFireX and CrossFireX
ŰŇ 1 x M.2 Socket (Key E), supports type 2230 WiFi/BT module
ŰŇ 15ë_ Gold Contact in VGA PCIe Slot (PCIE1)
*Supports NVMe SSD as boot disks
Storage ŰŇ 6 x SATA3 6.0 Gb/s Connectors, support RAID (RAID 0, RAID 1 and RAID 10), NCQ, AHCI and Hot Plug*
ŰŇ 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)**
ŰŇ 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
ŰŇ 1 x Power LED and Speaker Header
ŰŇ 2 x RGB LED Headers*
ŰŇ 2 x Addressable LED Headers**
ŰŇ 1 x CPU Fan Connector (4-pin)***
ŰŇ 1 x CPU/Water Pump Fan Connector (4-pin) (Smart Fan Speed Control)****
ŰŇ 5 x Chassis/Water Pump Fan Connectors (4-pin) (Smart Fan Speed Control)*****
ŰŇ 1 x 24 pin ATX Power Connector (Hi-Density Power Connector)
ŰŇ 1 x 8 pin 12V Power Connector (Hi-Density Power Connector)
ŰŇ 1 x 4 pin 12V Power Connector (Hi-Density Power Connector)
ŰŇ 1 x Front Panel Audio Connector (15ë_ Gold Audio Connector)
ŰŇ 2 x USB 2.0 Headers (Support 4 USB 2.0 ports) (Supports ESD Protection)
ŰŇ 1 x USB 3.2 Gen1 Header (Supports 2 USB 3.2 Gen1 ports) (Supports ESD Protection)
ŰŇ 1 x Front Panel Type C USB 3.2 Gen1 Header (Supports ESD Protection)
ŰŇ 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 ŰŇ 2 x Antenna Mounting Points
ŰŇ 1 x PS/2 Mouse/Keyboard Port
ŰŇ 1 x HDMI Port
ŰŇ 1 x DisplayPort 1.4
ŰŇ 1 x Optical SPDIF Out Port
ŰŇ 1 x USB 3.2 Gen2 Type-A Port (10 Gb/s) (Supports ESD Protection)
ŰŇ 1 x USB 3.2 Gen2 Type-C Port (10 Gb/s) (Supports ESD Protection)
ŰŇ 2 x USB 3.2 Gen1 Ports (Supports ESD Protection)
ŰŇ 4 x USB 2.0 Ports (Supports ESD Protection)*
ŰŇ 1 x RJ-45 LAN Port with LED (ACT/LINK LED and SPEED LED)
ŰŇ 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
ŰŇ ASRock Motherboard Utility (A-Tuning)
ŰŇ ASRock Dragon 2.5G LAN Software
ŰŇ ASRock Polychrome SYNC*
UEFI
ŰŇ ASRock Full HD UEFI
ŰŇ ASRock Instant Flash
*These utilities can be downloaded from ASRock Live Update & APP Shop.
Support CD ŰŇ Drivers, Utilities, AntiVirus Software (Trial Version), Google Chrome Browser and Toolbar
Accessories ŰŇ Quick Installation Guide, Support CD ŰŇ 2 x SATA Data Cables ŰŇ 3 x Screws for M.2 Sockets ŰŇ 2 x Standoffs for M.2 Sockets
Hardware Monitor ŰŇ Temperature Sensing: CPU, CPU/Water Pump, Chassis/Water Pump Fans ŰŇ Fan Tachometer: CPU, CPU/Water Pump, Chassis/Water Pump Fans ŰŇ Quiet Fan (Auto adjust chassis fan speed by CPU temperature): CPU, CPU/Water Pump, Chassis/Water Pump Fans ŰŇ Fan Multi-Speed Control: CPU, CPU/Water Pump, Chassis/Water Pump Fans ŰŇ Voltage monitoring: +12V, +5V, +3.3V, CPU Vcore, CPU VDDCR_SOC, DRAM, VPPM, CPU VDD 1.8V
Form Factor ŰŇ ATX Form Factor: 12.0-in x 9.6-in, 30.5 cm x 24.4 cm ŰŇ 2oz Copper PCB
OS ŰŇ Microsoft Windows 10 64-bit
Certifications FCC, CE ŰŇ ErP/EuP ready (ErP/EuP ready power supply is required)
Warranty 3 Years