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| Basic Information | ||
| Supported CPU | Supports AMD AM4 Socket Ryzen 2000, 3000 and 5000 Series Desktop Processors | |
| Chipset | AMD Promontory B450 | |
| Form Factor | Micro ATX Form Factor: 9.6-in x 9.6-in, 24.4 cm x 24.4 cm | |
| 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-adjustment |
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| Expansion Slots | ||
| PCI | AMD Ryzen series CPUs (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 (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™ |
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| M.2 Socket | 1 x Ultra M.2 Socket (M2_1) | |
| Memory | ||
| Type | Dual Channel DDR4 Memory Technology | |
| Slots | 4 x DDR4 DIMM Slots | |
| Supported Memory | AMD Ryzen series CPUs (Pinnacle Ridge) support DDR4 3533+(OC) / 3200(OC) / 2933(OC) / 2667/2400/2133 ECC & non-ECC, un-buffered memory. AMD Ryzen series CPUs (Summit Ridge) support DDR4 3466+(OC) / 3200(OC) / 2933(OC) / 2667/2400/2133 ECC & non-ECC, un-buffered memory. AMD Ryzen series CPUs (Raven Ridge) support DDR4 3466+(OC) / 3200(OC) / 2933/2667/2400/2133 non-ECC, un-buffered memory |
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| Maximum Memory | 64GB | |
| Graphics | ||
| Graphics | -Supports HDMI 1.4 with max. resolution up to 4K x 2K (4096x2160) @ 24Hz / (3840x2160) @ 30Hz - Supports DisplayPort 1.2 with max. resolution up to 4K x 2K (4096x2160) @ 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 |
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| Others | Shared memory default 2GB. Max Shared memory supports up to 16GB | |
| Connector & Ports | ||
| HDMI | 1 x HDMI Port | |
| USB (s) | - 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) |
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| LAN Port (s) | 1 x RJ-45 LAN Port with LED (ACT/LINK LED and SPEED LED) | |
| Supported Storage | 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, Cezanne, 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 |
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| Audio | HD Audio Jacks: Rear Speaker / Central / Bass / Line in / Front Speaker / Microphone (Gold Audio Jacks) | |
| Internal I/O Ports | - 1 x COM Port 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) |
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| TPM (Trusted Platform Module ) | - 1 x TPM Header | |
| Others | 1 x DisplayPort 1.2 | |
| Warranty Details | ||
| others | 03 years | |
The ASRock B450M Steel Legend is a high-performance Micro-ATX motherboard designed for gamers, content creators, and PC enthusiasts seeking a balance of power, compact design, and reliability. With AMD AM4 socket support, DDR4 overclocking, and multi-GPU capability, it delivers impressive performance in a small form factor.
Built for the AM4 platform, this motherboard supports Ryzen 2000, 3000, and 5000 Series processors, ensuring excellent multitasking, gaming, and productivity performance for modern PC builds.
Equipped with dual DDR4 DIMM slots supporting up to 3533MHz+ (OC), the B450M Steel Legend offers fast system responsiveness, smooth multitasking, and enhanced gaming performance.
Supports AMD Quad CrossFireX, allowing multiple GPU setups for superior graphics performance in gaming and creative workloads.
With HDMI and DisplayPort, this motherboard delivers high-resolution visuals and supports both modern and legacy monitors for versatile setups.
AM4 Socket for Ryzen 2000–5000 Series CPUs
DDR4 3533MHz+ (OC) memory support
Quad CrossFireX for multi-GPU setups
Compact Micro-ATX form factor
Ideal for gaming, streaming, and productivity
Compact gaming PC builds
Home office and student setups
Content creators and streamers
Upgrading from older AM4 platforms
The ASRock B450M Steel Legend combines reliability, performance, and expansion flexibility, making it a smart choice for both entry-level and mid-range AM4 PC builds.
Get specific details about this product from customers who own it.
