Asrock Rack B550D4ID-2L2T

Physical Status
Form Factor Deep mini-ITX
Dimensions 6.7″ x 8.2″
Processor System
CPU 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
Socket Single Socket AM4 (PGA1331)*
*Please note that this motherboard only supports LGA115x CPU heatsink.
Chipset AMD B550
System Memory
Supported DIMM Quantity 4 DIMM slots (2DPC)
Supported Type Supports DDR4 288-pin ECC*/non-ECC UDIMM
*For AMD Ryzen Desktop Processors with Radeon Graphics, ECC support is only with Processors with PRO technologies.
Max. Capacity per DIMM ECC/non-ECC UDIMM: up to 32GB
Max. DIMM Frequency up to 3200 MHz*
* AMD Ryzen™ 3000 G-Series Desktop Processors with Radeon™ Graphics support up to 2666 MHz
Voltage 1.2V
PCIe Expansion Slots (SLOT7 close to CPU)
PCIe x 16 SLOT7: PCIe4.0* x16 [CPU]
*Supports PCIe3.0 when using AMD Ryzen™ 5000, 4000 G-Series Desktop Processors with Radeon™ Graphics
Other PCIe Expansion Connectors
M.2 slot 1 M-key (PCIe4.0 x4* or SATA 6Gb/s), supports 22110 (BTO)**/2280 form factor [CPU]
1 M-key (PCIe3.0 x2 or SATA 6Gb/s), supports 2280 form factor (BTO)*** [FCH]
*Supports PCIe3.0 when using AMD Ryzen™ 5000, 4000 G-Series Desktop Processors with Radeon™ Graphics
** M2_1 22110 form factor support is possible by depopulating BMC_SMB and IPMB header and other BOM change
*** M2_2 support is possible by depopulating BMC_SMB and IPMB header and other BOM change
OCuLink 1 OCuLink (4 SATA 6Gb/s) [FCH]
SATA/SAS Storage
PCH Built-in Storage AMD B550 (4 SATA 6Gb/s; RAID 0/1/10):
1 OCuLink
Ethernet
Additional GbE Controller 1 Intel® X710-AT2: 2 RJ45 (10GbE)
2 Intel® I210: 2 RJ45 (1GbE)
Server Management
BMC Controller ASPEED AST2500
IPMI Dedicated GLAN 1 x Realtek RTL8211E for dedicated management GLAN
Graphics
Controller ASPEED AST2500:
1 DB15

AMD Ryzen™ Desktop Processors with Radeon™ Graphics:
1 HDMI
Rear I/O
UID Button/LED 1 UID button, 1 UID LED
VGA Port 1 DB15, 1 HDMI
USB 3.2 Gen1 Port 2 Type-A (USB3.2 Gen1)
RJ45 2 RJ45 (10GbE), 2 RJ45 (1GbE)
1 dedicated IPMI
Internal Connector/Headers
Power Connector 1 (4-pin, ATX PSU signal) w/ ATX 24-pin adapter cable, 2 (8-pin, ATX 12V) support 12V DC-in
Other Power Connectors 1 (4-pin) for HDD power when using 12V DC-in power source
Auxiliary Panel Header 1 (9-pin): chassis intrusion, system fault LED, LAN activity LED
System Panel 1 (9-pin): power switch, reset switch, system power LED, HDD activity LED
COM Header 1
Speaker Header 1
Fan Header 3 (4-pin)
Thermal Sensor Header 1
TPM Header 1 (17-pin, LPC), 1 (13-pin, SPI)
SMBus header 1
PMBus header 1
IPMB Header 1
Clear CMOS 1
USB 3.2 (Gen1) Header 1 (19-pin, 2 USB3.2 Gen1)
NMI Header 1
NC-SI 1
LED Indicators
Standby PWR LED 5vsb 1
80 Debug Port LED 1
Fan Fail LED 3
System BIOS
BIOS Type AMI UEFI BIOS; 256 Mb (32MB) SPI Flash ROM
BIOS Features Plug and Play, ACPI 5.1 compliance wake up events, SMBIOS 2.3
Hardware Monitor
Temperature CPU, DDR, MB, Card Side, FCH
Fan Fan Tachometer
CPU Quiet Fan (Allow Chassis Fan Speed Auto-Adjust by CPU Temperature)
Multi-Speed Control
Voltage 3VSB, 5VSB, VCPU, VSOC, VCCM, APU VDDP, 1.05V_PROM_S5, 2.5V_PROM, 1.05V_PROM_RUN, BAT, 3V, 5V, 12V
Environment
Temperature Operation temperature: 10°C ~ 35°C / Non operation temperature: -40°C ~ 70°C
Humidity Non operation humidity: 20% ~ 90% ( Non condensing)