Compare Detail
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PRIME B550M-K
90MB14V0-M0EAY0ModelB550M STEEL LEGEND
90-MXBCU0-A0UAYZ -
7.1 ChannelsAudio channels7.1 Channels
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Realtek ALC887Audio chipsetRealtek ALC1200
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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)Back io ports2 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)
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)
1 x Clear CMOS Button
HD Audio Jacks: Rear Speaker / Central / Bass / Line in / Front Speaker / Microphone (Gold Audio Jacks) -
AMD B550ChipsetAMD B550
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NoCrossfire supportYes
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YesEcc ram supportYes
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Micro ATXForm factorMicro ATX
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Realtek RTL8111HLan chipsetDragon RTL8125BG
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2242 / 2260 / 2280 / 22110 - M Key
2242 / 2260 / 2280 - M KeyM2 devices support2280 - M Key
2280 - M Key
2230 - E Key -
2M2 ports3
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10/100/1000MbpsMax lan speed10/100/1000/2500Mbps
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128GBMaximum supported ram128GB
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2Onboard usb 202
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1Onboard usb 32 gen 12
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1Pci express x16 slots2
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2Pci express x1 slots1
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YesRaid supportYes
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4Ram slots4
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June 2020Release dateJune 2020
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4Sata 6 gbps ports6
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NoSli supportNo
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AM4SocketAM4
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2133Mhz
2400Mhz
2666Mhz
2800Mhz
3000Mhz
3200Mhz
3333Mhz
3466Mhz
3600Mhz
3733Mhz
3866Mhz
4000Mhz
4133Mhz
4266Mhz
4400Mhz
4600MhzSupported memory2133Mhz
2400Mhz
2666Mhz
2933Mhz
3200Mhz
3466Mhz
3600Mhz
3733Mhz
3800Mhz
3866Mhz
4000Mhz
4133Mhz
4200Mhz
4266Mhz
4333Mhz
4400Mhz
4533Mhz -
NoWireless lanNo
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