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Prime B450M-A II
90MB15Z0-M0AAY0
Model
B550 STEEL LEGEND
90-MXBDF0-A0UAYZ
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7.1 Channels
Audio channels
7.1 Channels
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Realtek High Definition Audio CODEC
Audio chipset
Realtek ALC1220
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1 x PS/2 keyboard/mouse combo port(s)
1 x DVI-D
1 x D-Sub
1 x HDMI
1 x LAN (RJ45) port(s)
2 x USB 3.2 Gen 2 (teal blue) (2 x Type-A)
4 x USB 3.2 Gen 1 (blue) Type-A
3 x Audio jack(s)
1 x BIOS FlashBack Button(s)
Back io ports
- 2 x Antenna Ports (on I/O Panel Shield)
- 1 x PS/2 Mouse/Keyboard Port
- 1 x HDMI Port
- 1 x DisplayPort 1.4
- 1 x Optical SPDIF Out Port
- 1 x USB 3.2 Gen2 Type-A Port (10Gb/s) (Supports ESD Protection)
- 1 x USB 3.2 Gen2 Type-C Port (10Gb/s) (Supports ESD Protection)
- 2 x USB 3.2 Gen1 Ports (Supports ESD Protection)
- 4 x USB 2.0 Ports (Supports ESD Protection)*
- 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)
* Ultra USB Power is supported on USB_34 ports.
* ACPI wake-up function is not supported on USB_34 ports.
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AMD B450
Chipset
AMD B550
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No
Crossfire support
Yes
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No
Ecc ram support
Yes
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Micro ATX
Form factor
ATX
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Realtek RTL8111H
Lan chipset
Dragon RTL8125BG
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2242 / 2260 / 2280 / 22110 - M Key
M2 devices support
2242 / 2260 / 2280 - M Key
2242 / 2260 / 2280 / 22110 - M Key
2230 - E Key
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1
M2 ports
3
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10/100/1000Mbps
Max lan speed
10/100/1000/2500Mbps
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128 GB
Maximum supported ram
128 GB
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2
Onboard usb 20
2
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1
Onboard usb 32 gen 1
1
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0
Onboard usb 32 gen 2
1
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1
Pci express x16 slots
2
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2
Pci express x1 slots
2
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Yes
Raid support
Yes
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4
Ram slots
4
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October 2020
Release date
June 2020
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6
Sata 6 gbps ports
6
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No
Sli support
No
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AM4
Socket
AM4
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2133Mhz
2400Mhz
2666Mhz
2800Mhz
3000Mhz
3200Mhz
3300Mhz
3400Mhz
3466Mhz
3600Mhz
3733Mhz
3866Mhz
4000Mhz
4400Mhz
Supported memory
2133Mhz
2400Mhz
2666Mhz
2933Mhz
3200Mhz
3466Mhz
3600Mhz
3733Mhz
3800Mhz
3866Mhz
4000Mhz
4133Mhz
4200Mhz
4266Mhz
4333Mhz
4533Mhz
4600Mhz
4666Mhz
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No
Wireless lan
No
