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ASROCK B450 Steel Legend


Supports AMD AM4 Socket Ryzen™ 2000, 3000, 4000 G-Series, 5000 and 5000 G-Series Desktop Processors

Supports DDR4 3533+ (OC)

2 PCIe 3.0 x16, 4 PCIe 2.0 x1

AMD Quad CrossFireX™

Graphics Output: DisplayPort, HDMI

7.1 CH HD Audio (Realtek ALC892/897 Audio Codec)

6 SATA3, 1 Ultra M.2 (PCIe Gen3 x4), 1 M.2 (PCIe Gen3 x2 & SATA3)

2 USB 3.2 Gen2 (Rear Type-A+C)

6 USB 3.2 Gen1 (2 Front, 4 Rear)

Realtek Gigabit LAN

2,550฿ 3,350฿

Brands Asrock
Support CPU AMD AM4 Socket for 2nd/1st AMD Ryzen
Chipset AMD® B450 Chipset
From Factor micro ATX
Memory Chanel Dual Channel
DDR4 4DIMM
Ram Bus MHz 2133~3533+(O.C) MHz
Max 128GB
VGA ON BOARD – Integrated 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 1.2 ports by independent display controllers
– Supports HDMI 1.4 with max. resolution up to 4K x 2K (4096×2160) @ 24Hz / (3840×2160) @ 30Hz
– Supports DisplayPort 1.2 with max. resolution up to 4K x 2K (4096×2160) @ 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

*Actual support may vary by CPU

**The Max shared memory 16GB requires 32GB system memory installed.

Storage – 4 x SATA3 6.0 Gb/s Connectors, support RAID (RAID 0, RAID 1 and RAID 10), NCQ, AHCI and Hot Plug*
– 2 x SATA3 6.0 Gb/s Connectors by ASMedia ASM1061, support NCQ, AHCI and Hot Plug
– 1 x Ultra M.2 Socket (M2_1), supports M Key type 2230/2242/2260/2280 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 2230/2242/2260/2280/22110 M.2 SATA3 6.0 Gb/s module and M.2 PCI Express module up to Gen3 x2 (16 Gb/s)**

*M2_2, SATA3_3 and SATA3_4 share lanes. If either one of them is in use, the others will be disabled.

**If M2_1 is occupied, PCIE4 will be disabled.
Supports NVMe SSD as boot disks
Supports ASRock U.2 Kit

Expansion Slots AMD Ryzen series CPUs (Vermeer, Matisse, Cezanne, Renoir, Summit Ridge and Pinnacle Ridge)
– 2 x PCI Express 3.0 x16 Slots (PCIE1: x16 mode; PCIE4: x4 mode)*
AMD Ryzen series CPUs (Picasso, Raven Ridge)
– 2 x PCI Express 3.0 x16 Slots (PCIE1: x8 mode; PCIE4: x4 mode) (If you use Athlon 2xxGE series APU, PCIE1 slot will run at x4 mode.)
AMD Athlon series CPUs
– 2 x PCI Express 3.0 x16 Slots (PCIE1: x4 mode; PCIE4: x2 mode)*

– 4 x PCI Express 2.0 x1 Slots
– Supports AMD Quad CrossFireX™ and CrossFireX™**

*Supports NVMe SSD as boot disks
If M2_1 is occupied, PCIE4 will be disabled.

**This feature is only supported with Ryzen Series CPUs (Vermeer, Matisse, Cezanne, Renoir, Summit Ridge, Pinnacle Ridge, Picasso and Raven Ridge).

INTERNAL I/O PORT – 1 x COM Port Header
– 1 x TPM 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 3.2 Gen1 Header (Supports 2 USB 3.2 Gen1 ports) (Supports ESD Protection)
Rear Panel I/O – 1 x PS/2 Mouse/Keyboard Port
– 1 x HDMI Port
– 1 x DisplayPort 1.2
– 1 x Optical SPDIF Out Port
– 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)
Rear USB Port – 2 x USB 2.0 Ports (Supports ESD Protection)
– 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)
– 4 x USB 3.2 Gen1 Ports (Supports ESD Protection)*
Warranty 3Y