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Steel Legend represents the philosophical state of rock-solid durability and irresistible aesthetics. Built around most demanding specs and features, the Steel Legend series aims at daily users and mainstream enthusiasts! Providing a strong array of materials/components to ensure a stable and reliable performance. A motherboard that fulfills every task – with style!
RULE YOUR OWN LIGHTING WAY - POLYCHROME RGB
Steel legend motherboards deliver stunning performance and superior aesthetics to rule your own colorful lighting way! ASRock offers a very comprehensive control to perform the built-in RGB LEDs or the connected LED strips, CPU fans, coolers, chassis and any RGB devices smoothly. Devices can be synchronized across the Polychrome RGB Sync-certified accessories as well.
*The addressable RGB LED header supports WS2812B addressable RGB LED strip (5V/Data/GND), with a maximum power rating of 3A (5V), a max of 80 LEDs and length within 2 meters.
*The RGB LED header supports standard 5050 RGB LED strip (12V/G/R/B), with a maximum power rating of 3A (12V) and length within 2 meters.
Dual M.2 For SSD
Two of the world’s fastest M.2 slots. One delivers up to PCIe Gen3 x4 32Gb/s transfer speed, the other one supports SATA3 6Gb/s mode.
Dual USB 3.1 Gen2 (Type-A + Type-C)
This motherboard has a pair of onboard Type-A and Type-C USB 3.1 Gen2 ports built on the rear i/o for supporting next generation USB 3.1 Gen2 devices and to deliver up to 10 Gbps data transfer rates.
2oz Copper
It comes with 2 ounces copper inner layers, using only carefully selected copper materials for PCB layers, delivering lower temperature and higher energy efficiency for overclocking.
PREMIUM 60A POWER CHOKE
ASRock’s premium 60A power chokes effectively make the saturation current up to three times better, thus providing enhanced and improved Vcore voltage to the motherboard.
PCI-E STEEL SLOT
The advanced PCI-E Steel Slot packed with solid cover that prevent any signal interference with graphics cards. It also ensures the heavy graphics cards to be well-installed in the PCI-E slot safely.
XXL Aluminum Alloy Heatsink
Extra large aluminum alloy heat sinks that effectively take away heat from the MOSFET and chipset so that your whole system may perform more stable.
Premium 60A Power Choke
Compared to traditional chokes, ASRock’s premium 60A power chokes effectively make the saturation current up to three times better, thus providing enhanced and improved Vcore voltage to the motherboard.
Nichicon 12K Black Caps
Supreme 12K black capacitors with lifespans of at least 12,000 hours. Compared to other counterparts on high-end motherboards that merely have lifespans of around 10,000 hours, ASRock applied Nichicon 12K Black Caps that offer 20% longer lifespans and provide more stability and reliability.
I/O Armor
A new designed protective cover for all of the crucial parts near the motherboard's rear I/O, so that they won't easily be damaged by static electricity.
Sapphire Black PCB
Pure black PCB appearance. The new Sapphire Black PCB represents rock-solid quality and gives the motherboard a more mysterious touch.
High Density Glass Fabric PCB
High Density Glass Fabric PCB design that reduces the gaps between the PCB layers to protect the motherboard against electrical shorts caused by humidity.
2oz Copper PCB
Using only carefully selected copper materials for PCB layers, 2oz Copper PCB delivers lower temperature and higher energy efficiency for overclocking.
Full Spike Protection
Some sensitive digital components on the motherboard are vulnerable to power surges, the excessive current may cause your system to malfunction immediately. ASRock Full Spike Protection includes various technologies to prevent your motherboard’s components from being damaged by these unexpected voltage spikes.
Live Update & APP Shop
ASRock Live Update & APP Shop is designed for your convenience. We provide various apps and support software for users to download. You can also easily optimize your system and keep your motherboard up to date with ASRock Live Update & APP Shop.
Asrock B450M Steel Legend Socket AM4 AMD B450 DDR4 HDMI DP RGB SPDIF Micro ATX
CPU
| CPU Socket | Socket AM4 |
| CPU Brand | AMD |
| Installed Processors (Max) | 0 (1) |
| Supported Processor Manufacturer | AMD |
| 64-bit Support | Yes |
| Socket | AM4 |
Rear Panel I/O Ports
| USB Ports | 1 x USB 3.1 Type-C 1 x USB 3.1 Type-A 4 x USB 3.0 2 x USB 2.0 |
| DisplayPorts | 1 x DisplayPort 1.2 |
| HDMI Port | 1 x HDMI |
| Keyboard/Mouse Combo Port | 1 x PS/2 |
| RJ-45 Ports | 1 x RJ-45 |
| Audio Line In Ports | 1 x 3.5mm Jack |
| Audio Line Out Ports | 3 x 3.5mm Jacks |
| Microphone In Port | 1 x 3.5mm Jack |
| S/PDIF Port | 1 x S/PDIF Optical Out |
Internal I/O Connectors
| SATA Connectors | 4 x SATA III |
| USB Connectors | 1 x USB 3.0 2 x USB 2.0 |
| Speaker | 1 x Speaker |
| Front Panel Connectors | 1 x Front Panel 1 x Front Audio |
| Cooling Fan Support | 1 x CPU Fan 1 x CPU/Water Pump Fan 3 x Chassis/Water Pump Fans 1 x AMD Fan |
| Serial Connectors | 1 x COM |
| Chassis Intrusion Connector | 1 x Chassis Intrusion |
| TPM Header | 1 x TPM |
| Power Connector Port | 1 x 20+4-pin ATX 1 x 4+4-pin EPS |
| Other Connectors | 1 x M.2, M Key (Type 2242/2260/2280) 1 x M.2, M Key (Type 2230/2242/2260/2280) 1 x RGB LED header 1 x Addressable LED header |
Memory
| Memory Bus Speed | Up to 3533 MHz |
| Memory Type | DDR4 |
| Maximum RAM | 64 GB |
| Memory Slot | 4 x DIMM |
Motherboard
| Chipset Manufacturer | AMD |
| Northbridge | B450 |
| RAID Supported | Yes |
| RAID Format | RAID 0, 1, 10 |
| SATA Supported | Yes |
Expansion
| Number of PCI Express Slots | 1 x PCI Express 3.0 x16 (@ x16, x8 or x4) 1 x PCI Express 2.0 x16 (@ x4) 1 x PCI Express 2.0 x1 |
Graphics Device
| Integrated Graphics Supported | Yes |
Sound
| Integrated Sound | Realtek ALC892 |
Network
| Integrated Network | Realtek RTL8111H |
| Network Speeds Supported | 10/100/1000 Mbps |
| Wireless LAN | No |
| Bluetooth | No |
System Requirements
| Operating Systems Supported | Microsoft® Windows® 10 64-bit |
System
| SLi/Crossfire Features | Supports AMD Quad CrossFireX™ and CrossFireX™ |
Physical
| Form Factor | MicroATX Motherboard |
| In The Box | ASRock B450M Steel Legend Motherboard Quick Installation Guide Support CD I/O Shield 2 x SATA Data Cables 2 x Screws for M.2 Sockets |
| Width | 244 mm |
| Length | 244 mm |
Key Features
| Firewire | No |
| Wireless Network | No |
| Memory Channel | Dual |
| On-board Audio Type | 7.1 |
| Number of SATA Ports | 4 port(s) |
| Number of USB Ports | 8 port(s) |
| SATA III Support | Yes |
| USB 3.0 Support | Yes |
| Multi GPU Support | ATi CrossFire |
| VGA Connection | No |
| DVI Connection | No |
| HDMI Connection | Yes |
| DisplayPort Connection | Yes |
| Motherboard Form Factor | mATX |
| Motherboard Power Connectors | 8-Pin |
| Motherboard Chipset | AMD B450 |
| Thunderbolt | No |
| USB 3.1 Support | Yes |
| Internal USB3.0 Header | Yes |
| M.2 Support | Yes |
| On-board RGB Control | ASRock RGB LED |
| Skip Audio Test | No |
| RGB Header Type | 4-Pin RGB |
| Addressable RGB | No |
Warranty
| Warranty | 1 Year |
Item Details
| Manufacturer | ASRock |
| Manufacturer Code | 90-MXB9Y0-A0UAYZ |
| EAN | 4717677338072 |
| Condition | New |
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