Compare Detail
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Z87-AModelPRIME B550M-A/CSM
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Intel Z87ChipsetAMD B550
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YesCrossfire supportNo
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NoEcc ram supportYes
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ATXForm factorMicro ATX
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0M2 ports2
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32GBMaximum supported ram128 GB
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3Onboard usb 202
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1Onboard usb 32 gen 11
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0Pci express x16 slots1
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0Pci express x1 slots2
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YesRaid supportYes
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4Ram slots4
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8Sata 6 gbps ports4
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YesSli supportNo
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LGA1150SocketAM4
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1333Mhz
1600Mhz
1800Mhz
1866Mhz
2000Mhz
2133Mhz
2200Mhz
2400Mhz
2500Mhz
2600Mhz
2666Mhz
2800MhzSupported memory2133Mhz
2400Mhz
2666Mhz
2800Mhz
3000Mhz
3200Mhz
3333Mhz
3466Mhz
3600Mhz
3733Mhz
3866Mhz
4000Mhz
4133Mhz
4266Mhz
4400Mhz
4600Mhz -
NoWireless lanNo