Compare Detail
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Prime B450M-A II
90MB15Z0-M0AAY0ModelPRIME B550M-A
90MB14D0-M0AAY0
90MB14I0-M0EAY0 -
7.1 ChannelsAudio channels
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Realtek High Definition Audio CODECAudio chipset
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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 -
AMD B450ChipsetAMD B550
-
NoCrossfire supportNo
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NoEcc ram supportYes
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Micro ATXForm factorMicro ATX
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Realtek RTL8111HLan chipset
-
2242 / 2260 / 2280 / 22110 - M KeyM2 devices support2242 / 2260 / 2280 / 22110 - M Key
2242 / 2260 / 2280 - M Key -
1M2 ports2
-
10/100/1000MbpsMax lan speed
-
128 GBMaximum supported ram128GB
-
2Onboard usb 202
-
1Onboard usb 32 gen 11
-
1Pci express x16 slots1
-
2Pci express x1 slots2
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YesRaid supportYes
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4Ram slots4
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October 2020Release dateJune 2020
-
6Sata 6 gbps ports4
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NoSli supportNo
-
AM4SocketAM4
-
2133Mhz
2400Mhz
2666Mhz
2800Mhz
3000Mhz
3200Mhz
3300Mhz
3400Mhz
3466Mhz
3600Mhz
3733Mhz
3866Mhz
4000Mhz
4400MhzSupported memory2133Mhz
2400Mhz
2666Mhz
2800Mhz
3000Mhz
3200Mhz
3466Mhz
3600Mhz
3866Mhz
4000Mhz
4400Mhz -
NoWireless lanNo
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