Compare Detail
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B550M/ACModelZ490 PRO4
90-MXBC50-A0UAYZ -
7.1 ChannelsAudio channels7.1 Channels
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Realtek ALC1200Audio chipsetRealtek ALC1200
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2 x Antenna Ports
1 x PS/2 Mouse/Keyboard Port
1 x HDMI Port
4 x USB 3.2 Gen1 Ports (ASMedia ASM1074 hub) (Supports ESD Protection)
2 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: Line in / Front Speaker / MicrophoneBack io ports2 x Antenna Ports
1 x PS/2 Mouse/Keyboard Port
1 x D-Sub Port
1 x HDMI Port
1 x USB 3.2 Gen2 Type-A Port (10Gb/s) (ReDriver) (Supports ESD Protection)
1 x USB 3.2 Gen2 Type-C Port (10Gb/s) (ReDriver) (Supports ESD Protection)
2 x USB 3.2 Gen1 Ports (Supports ESD Protection)
2 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: Line in / Front Speaker / Microphone -
AMD B550ChipsetIntel Z490
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YesCrossfire supportYes
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YesEcc ram supportNo
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Micro ATXForm factorATX
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Realtek RTL8111HLan chipsetIntel I219-V
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2280 - M KeyM2 devices support2260 / 2280 - M Key
2260 / 2280 / 22110 - M Key
2230 - E Key -
1M2 ports3
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10/100/1000MbpsMax lan speed10/100/1000Mbps
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128GBMaximum supported ram128 GB
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2Onboard usb 201
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2Onboard usb 32 gen 12
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2Pci express x16 slots2
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1Pci express x1 slots3
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YesRaid supportYes
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4Ram slots4
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September 2020Release dateMay 2020
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4Sata 6 gbps ports6
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NoSli supportNo
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AM4SocketLGA1200
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2133Mhz
2400Mhz
2666Mhz
2933Mhz
3200Mhz
3466Mhz
3600Mhz
3733Mhz
3800Mhz
3866Mhz
4000Mhz
4133Mhz
4200Mhz
4266Mhz
4333Mhz
4400Mhz
4533MhzSupported memory2133Mhz
2400Mhz
2666Mhz
2800Mhz
2933Mhz
3200Mhz
3600Mhz
3733Mhz
3800Mhz
3866Mhz
4000Mhz
4133Mhz
4266Mhz
4333Mhz
4400Mhz -
5Wi fi generation
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YesWireless lanNo
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