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RM730.00 RM739.00
Asrock B550 Steel Legend Motherboard
Price RM730.00 RM739.00
Product SKU COM-B550-SL
Size (L x W x H) 43 cm x 13 cm x 37 cm
Availability 2
Shipping Fee
  • ASRock USB 3.2 Gen2
  • ASRock Super Alloy
  • 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


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

    *Not compatible with AMD Athlon™ Processors.



CPU Socket

Supports 3rd Gen AMD AM4 Ryzen™ / future AMD Ryzen™ Processors

(3000 & 4000 Series Processors) (*)

(*) Not compatible with AMD Ryzen™ 5 3400G and Ryzen™ 3 3200G

CPU Socket AMD Socket AM4
Chipset AMD B550 Chipset

4 DIMMs, up to DDR4 4733+(OC)(**) 

(**) Please refer to Memory Support List on Asrock website for more details 

Expansion Slots

1* PCIe 4.0x16(***), 1*PCIe 3.0x16, 2*PCIe 3.0x1, 1*M.2 Key-E for WiFi

(***) Actual support may vary by CPU

Multi-GPU AMD CrossFireX™

Intergrated AMD Radeon™ Vega Series Graphics in Ryzen Series APU (***)

(***) Actual support may vary by CPU

Graphics Output 1*HDMI, 1*DisplayPort

6*SATA3, 1*Hyper M.2 (PCIe Gen4 x4)(***) , 1*M.2 (PCIe Gen3 x2 & SATA3) 

(***) Actual support may vary by CPU

M2_2 & SATA_3_5_6 share lanes. If either one of them is in use, the other one will be disabled.


2* USB 3.2 Gen 2 (Type A+C)

5*USB 3.2 Gen1 (2*Rear, 2*Front, 1*Front Type-C)

8*USB 2.0 (4*Rear, 4*Front)

Audio 7.1 CH HD Audio (Realtek ALC1220 Audio Codec), Nahimic Audio
LAN Dragon 2.5Gb/s LAN
Form Factor ATX


For more details, please visit Asrock @ 



3-Years Local Manufacturer Warranty

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What's in the box

1 x Asrock B550 Steel Legend Motherboard