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  6. Item#: N82E16813140071

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AsRock Rack B550D4-4L ATX Server Motherboard AMD Ryzen 5000 Series AM4 (PGA 1331) B550

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  • ATX (12"x 9.6")
  • Support AMD Ryzen 5000 Series Desktop Processors
  • Support 4 x DIMM slots, DDR4 288-pin ECC*/non-ECC UDIMM
  • Support 1 x PCIe 4.0 x16 + 1 x PCIe 4.0 x4
  • Support 6 x SATA 6Gb/s
  • Support 1 x M.2 (PCIe3.0x4 or SATA 6Gb/s); support 22110/2280/2242 form factor
  • Support 4 x RJ45 (1GbE) Intel® i210 + 1 x dedicated IPMI
  • Support 1 x HDMI
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Specs
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Learn more about the ASRock Rack B550D4-4L

Model
Brand AsRock Rack
Model B550D4-4L
Supported CPU
CPU Socket Type Socket AM4
CPU Type Supports:
AMD Ryzen 5000 and 4000 G-Series Desktop Processors with Radeon Graphics
AMD Ryzen 5000 and 3000 Series Desktop Processors
AMD Ryzen PRO 5000, 4000 and 3000* Series Desktop Processors
* Not compatible with AMD Ryzen PRO 3000 Series Desktop Processors with Radeon Graphics
Memory
Number of DDR4 Slots 4 x 288-pin
DDR4 Standard DDR4 3200
ECC Supported Yes
Expansion Slots
PCI Express 4.0 x16 SLOT6: PCIe x16 (PCIe4.0 x16) [CPU]
PCI Express x8 SLOT4: PCIe x8 (PCIe4.0 x4) [CPU]
Storage Devices
SATA 6 x SATA 6.0Gb/s
SATA RAID 0/1/10
M.2 1 M-key (PCIe3.0 x4 or SATA 6Gb/s); support 22110/2280/2242 form factor [FCH]
Onboard Video
Onboard Video Chipset Aspeed AST2500
Onboard LAN
LAN Chipset 4 Intel i210: 4 RJ45 (1GbE)
Max LAN Speed 1Gbps
Rear Panel Ports
Back I/O Ports HDMI: 1
VGA Port: 1 DB15
USB 3.2 Gen1 Port: 2 Type-A (USB3.2 Gen1)
USB 3.2 Gen2 Port: 2 Type-A (USB3.2 Gen2)
Lan Port: 4 RJ45 (1GbE)
Dedicate LAN: 1 dedicated IPMI
Serial Port: 1 DB9
UID Button/UID LED: 1 UID button, 1 UID LED
Onboard Ports
Other Connectors COM Header: 1
Front Lan LED Connector: 1 for LAN3/LAN4
Auxiliary Panel Header: 1 (18-pin): chassis intrusion, system fault LED, LAN1/LAN2 activity LED, locate, SMBus
TPM Header: 1 (17-pin, LPC), 1 (13-pin, SPI)
Thermal Sensor Header: 1
IPMB Header: 1
VGA Header: 1
PMBus CONN: 1
Buzzer: 1
Fan Header: 6 (6-pin)
USB 3.2 (Gen1) Header: 1 (19-pin, 2 USB3.2 Gen1)
USB 2.0 Header: 1 (9-pin, 2 USB2.0)
Type A USB 3.2 (Gen1) Port: 1 (Type-A, 1 USB3.2 Gen1)
System Panel: 1 (9-pin): power switch, reset switch, system power LED, HDD activity LED
Speaker Header: 1
BMC_SMB Header: 1
Power Connector: 1 (24-pin, ATX main power), 1 (8-pin, ATX 12V), 1 (4-pin, ATX 12V)
Clear CMOS: 1 (contact pads)
Dimensions
Form Factor ATX
Additional Information
First Listed on Newegg January 19, 2022

Warranty & Returns

Warranty, Returns, And Additional Information

Warranty

  • Limited Warranty period (parts): 3 years
  • Limited Warranty period (labor): 3 years
  • Read full details

Return Policies

    We want to ensure your holiday shopping this year is hassle-free. That’s why we’re automatically extending our return policies on almost every product! For purchases placed between November 1st, 2025 and December 31, 2025 you will have until January 31, 2026 to return your product.

  • Return for refund until: January 31, 2026
  • Return for replacement until: January 31, 2026
  • This item is covered by Newegg.com's Extended Holiday Return Policy. Read full return policy for details.

Manufacturer Contact Info

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