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Asrock B450M Steel Legend AMD Micro-ATX Motherboard

Name: Asrock B450M Steel Legend AMD Micro-ATX Motherboard
Brand: ASRock
Price: 12500 BDT
Availability: OutOfStock

Model: Asrock B450M Steel LegendItem #: asrock-b450m-steel-legend-motherboard

৳12,500

Out of stockverified 22 Sept 2026

Ordering is paused

We're finishing our supply arrangements. Prices and stock here are live — ordering reopens shortly.

Delivery

Inside Dhaka: ৳60 · 1–2 days
Outside Dhaka: ৳120 · 2–4 days

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Key highlights

AMD Promontory B450 Chipset
1 M.2 slots
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 RAM type
Micro ATX Form Factor: 9.6-in x 9.6-in, 24.4 cm x 24.4 cm

Overview

Asrock B450M Steel Legend AMD AM4 Socket.Supports DDR4 3533+ (OC)1 PCIe 3.0 x16, 1 PCIe 2.0 x16, 1 PCIe 2.0 x1. AMD Quad CrossFireX™. Graphics Output: DisplayPort, HDMI. 7.1 CH HD Audio (Realtek ALC892 Audio Codec), Nichicon Fine Gold Series Audio Caps. 6 SATA3, 1 Ultra M.2 (PCIe Gen3 x4), 1 M.2 (PCIe Gen3 x2 & SATA3).2 USB 3.1 Gen2 (Rear Type-A+C). 6 USB 3.1 Gen1 (2 Front, 4 Rear). Realtek Gigabit LAN

Specifications

Chipset: AMD Promontory B450
M.2 slots: 1
RAM type: 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
Form factor: Micro ATX Form Factor: 9.6-in x 9.6-in, 24.4 cm x 24.4 cm
Memory — Type: Dual Channel DDR4 Memory Technology
Memory — Slots: 4 x DDR4 DIMM Slots
Highlights — Model: Asrock B450M Steel Legend
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

Show all 23 specifications

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™;
Memory — Maximum Memory: 64GB
Basic Information — 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
Connector & Ports — HDMI: 1 x HDMI Port
Connector & Ports — Audio: HD Audio Jacks: Rear Speaker / Central / Bass / Line in / Front Speaker / Microphone (Gold Audio Jacks)
Connector & Ports — 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)
Graphics — Max Shared Memory: Shared memory default 2GB. Max Shared memory supports up to 16GB
Highlights — Graphics Output: DisplayPort, HDMI
Connector & Ports — LAN Port (s): 1 x RJ-45 LAN Port with LED (ACT/LINK LED and SPEED LED)
Basic Information — Supported CPU: Supports AMD AM4 Socket Ryzen 2000, 3000 and 5000 Series Desktop Processors
Connector & Ports — Display Port (s): 1 x DisplayPort 1.2
Connector & Ports — 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
Connector & Ports — 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)
Warranty Information — Manufacturing Warranty: 03 years
Connector & Ports — TPM (Trusted Platform Module ): - 1 x TPM Header

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Price	৳12,500	৳12,200	৳12,500	৳12,500
Availability	Out of stock	In stock	In stock	Out of stock
Brand	ASRock	Asus	Asus	Asus
M.2 slots	1	2	—	—
RAM type	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	5100(OC)/4866(OC)/4600(OC)/4466(OC)/4400(OC)/4333(OC)/4266(OC)/4200(OC)/4133(OC)/4000(OC)/3866(OC)/3733(OC)/3600(OC)/3466(OC)/3400(OC)/3333(OC)/3200/3000/2933/2800/2666/2400/2133, Un-buffered Memory; Dual Channel Memory Architecture; ECC memory (ECC mode) support varies by CPU.	4866(OC)/ 4800(OC)/ 4600(OC)/ 4466(OC)/ 4400(OC)/ 4266(OC)/ 4133(OC)/ 4000(OC)/ 3866(OC)/ 3733(OC)/ 3600(OC)/ 3466(OC)/ 3333(OC)/ 3200/ 3000/ 2800/ 2666/ 2400/ 2133 MHz, Un-buffered Memory; Dual Channel Memory Architecture	AMD Ryzen 5000 Series/ 3000 Series Desktop Processors: ; 4600(O.C)/4400(O.C)/4266(O.C.)/4133(O.C.)/4000(O.C.)/3866(O.C.)/3733(O.C.)/3600(O.C.)/3466(O.C.)/3333(O.C.)/3200/3000/2800/2666/2400/2133 MHz Un-buffered Memory; ; AMD Ryzen 4000 G-Series Processors:; 4800(O.C.)/4600(O.C)/4466(O.C.)/4400(O.C)/4266(O.C.)/4133(O.C.)/4000(O.C.)/3866(O.C.)/3733(O.C.)/3600(O.C.)/3466(O.C.)/3333(O.C.)/3200/3000/2800/2666/2400/2133 MHz Un-buffered Memory
Form factor	Micro ATX Form Factor: 9.6-in x 9.6-in, 24.4 cm x 24.4 cm	micro-ATX Form Factor; 9.6 inch x 8.7 inch ( 24.4 cm x 22.1 cm )	microATX; 24.4cm x 24.4cm	mATX Form Factor; 9.6 inch x 9.6 inch ( 24.4 cm x 24.4 cm )
Chipset	AMD Promontory B450	AMD B550 Chipset	A520	AMD B550