AM5 · Micro-ATX · DDR5 · board-only configuration · MSI global specification
A Micro-ATX AM5 motherboard with AMD A620: two DDR5 slots (up to 128 GB, DDR5-6800+ OC), a PCIe 4.0 x16 graphics slot, one PCIe 4.0 x4 M.2 slot and Realtek 1 Gb Ethernet.
Specifications checked 21 Sept 2026.
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Manufacturer specificationsAM5 · Micro-ATX · DDR5 · board-only configuration · MSI global specification
A Micro-ATX AM5 motherboard with AMD B650: four DDR5 slots rated up to DDR5-7200+ (OC), a PCIe 4.0 x16 graphics slot, two PCIe 4.0 x4 M.2 slots and Realtek 8125BG 2.5 Gb Ethernet.
Specifications checked 21 Sept 2026.
Amazon links open search results. Check the exact variant, current price and availability with the retailer.
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Differences first. Select a topic for its graphic, sources and conditions.
Different hardware. A chip name or generation does not quantify real-world performance.
Plan the complete platform. Check the exact CPU-support list, required BIOS and memory validation before buying. PCIe generations and lane allocations can change with the processor. A socket match or slot count is not a guarantee that every component works together at its highest advertised setting.
13 verified differences, most decision-relevant first. 7 are also drawn in Visual facts above. Missing information stays separate.
Different hardware. A chip name or generation does not quantify real-world performance.
The overclocked speed is MSI's 1DPC 1R maximum; MSI lists 1DPC 2R up to 6000+ MHz. JEDEC default is DDR5-4800. · Manufacturer specification · CPU, BIOS and validated DIMM population determine supported capacity and speeds. DDR4 and DDR5 are not interchangeable.
MSI PRO A620M-E — manufacturer specificationsThe overclocked speed is MSI's 1DPC 1R maximum; MSI lists 1DPC 2R and 2DPC 1R up to 6000+ and 2DPC 2R up to 5400+ MHz. JEDEC default is DDR5-4800. · Manufacturer specification · Manufacturer capacity ceiling for this exact board, not included memory or a performance measurement. CPU, BIOS, DIMM population and the validated-module list determine support. DDR5 slots require DDR5 modules; DDR4 and DDR5 are not interchangeable.
MSI PRO B650M-P — manufacturer specificationsCheck the exact configuration and source conditions for your use.
Manufacturer specification · Physical DDR5 module positions, not included modules. Consult the board manual for population order and compatible capacities.
MSI PRO A620M-E — manufacturer specificationsManufacturer specification · Physical DDR5 module positions, not included modules. Consult the board manual for population order and compatible capacities.
MSI PRO B650M-P — manufacturer specificationsCheck the exact configuration and source conditions for your use.
Manufacturer specification · Manufacturer capacity ceiling for this exact board, not included memory or a performance measurement. CPU, BIOS, DIMM population and the validated-module list determine support. DDR5 slots require DDR5 modules; DDR4 and DDR5 are not interchangeable.
MSI PRO A620M-E — manufacturer specificationsManufacturer specification · Manufacturer capacity ceiling for this exact board, not included memory or a performance measurement. CPU, BIOS, DIMM population and the validated-module list determine support. DDR5 slots require DDR5 modules; DDR4 and DDR5 are not interchangeable.
MSI PRO B650M-P — manufacturer specificationsCheck the exact configuration and source conditions for your use.
M2_1 connects to the CPU. · Manufacturer specification · M2_1 accepts 2280/2260 drives.
MSI PRO A620M-E — manufacturer specificationsM2_1 connects to the CPU; M2_2 connects to the chipset. · Manufacturer specification · Both M.2 slots accept 2280/2260 drives. Check drive length and the board manual for slot-specific limits.
MSI PRO B650M-P — manufacturer specificationsCheck the exact configuration and source conditions for your use.
Manufacturer specification · Onboard M.2 storage positions only. M2_1 accepts 2280/2260 drives. Check exact processor, BIOS and drive compatibility.
MSI PRO A620M-E — manufacturer specificationsManufacturer specification · Onboard M.2 storage positions only. Both M.2 slots accept 2280/2260 drives. Verify the exact CPU, BIOS and drive compatibility.
MSI PRO B650M-P — manufacturer specificationsCheck the exact configuration and source conditions for your use.
Manufacturer specification · The secondary connector is labelled PCI_E2 on this model.
MSI PRO A620M-E — manufacturer specificationsPCI_E1 connects to the CPU; PCI_E2 and PCI_E3 connect to the chipset. · Manufacturer specification · Electrical link widths, not a guarantee of the installed system's performance. The x16 slot runs at x8 with Ryzen 8700/8600/8400 and x4 with Ryzen 8500/8300.
MSI PRO B650M-P — manufacturer specificationsCheck the exact configuration and source conditions for your use.
Manufacturer specification · Wired Ethernet only; MSI lists no Wi-Fi or Bluetooth hardware for this board.
MSI PRO A620M-E — manufacturer specificationsManufacturer specification · Wired Ethernet only; MSI lists no Wi-Fi or Bluetooth hardware for this board.
MSI PRO B650M-P — manufacturer specificationsCheck the exact configuration and source conditions for your use.
Manufacturer specification · Counts do not establish connector current limits.
MSI PRO A620M-E — manufacturer specificationsManufacturer specification · Board headers, not supplied fans or an assertion of current limits.
MSI PRO B650M-P — manufacturer specificationsCheck the exact configuration and source conditions for your use.
Manufacturer specification · Requires integrated CPU graphics. VGA limits: 2048×1536 at 50 Hz, 2048×1280 or 1920×1200 at 60 Hz.
MSI PRO A620M-E — manufacturer specificationsManufacturer specification · Requires integrated CPU graphics; supported modes depend on processor.
MSI PRO B650M-P — manufacturer specificationsCheck the exact configuration and source conditions for your use.
MSI labels these memory speeds in MHz (manufacturer notation); they are the rated data rates. · Manufacturer specification · Manufacturer OC limits, not guaranteed stability or measured performance. CPU, BIOS and memory-module compatibility apply.
MSI PRO A620M-E — manufacturer specificationsMSI labels these memory speeds in MHz (manufacturer notation); they are the rated data rates. · Manufacturer specification · Manufacturer OC configurations, not guaranteed kit speed or measured application performance. CPU, BIOS, memory rank and DIMMs per channel determine support.
MSI PRO B650M-P — manufacturer specificationsCheck the exact configuration and source conditions for your use.
Manufacturer specification · Internal-header capacity; requires compatible case ports and wiring. Not rear-panel sockets.
MSI PRO A620M-E — manufacturer specificationsManufacturer specification · Requires compatible case ports and cabling; not rear sockets.
MSI PRO B650M-P — manufacturer specificationsCheck the exact configuration and source conditions for your use.
Manufacturer specification · Port inventory and interface ratings, not simultaneous measured throughput or charging power.
MSI PRO B650M-P — manufacturer specificationsCheck the exact configuration and source conditions for your use.
Manufacturer specification · Board dimensions, not retail packaging. Check case mounting positions, clearance and cable routing.
MSI PRO A620M-E — manufacturer specificationsManufacturer specification · Board dimensions, not retail packaging. Check case mounting positions, clearance and cable routing.
MSI PRO B650M-P — manufacturer specificationsThese descriptions or measurements differ. Wording alone does not establish a different capability; check the exact configuration.
MSI's rear-panel list for this board does not mention a Flash BIOS button; check the manual if you need BIOS flashback. · Manufacturer specification
MSI PRO A620M-E — manufacturer specificationsManufacturer specification · Button presence only. Recovery procedure and USB preparation require the exact manual.
MSI PRO B650M-P — manufacturer specificationsEvidence is missing or conflicting on at least one side. This is not a verified difference.
MSI specifies non-ECC unbuffered memory and does not say whether ECC modules are accepted. · Manufacturer specification
MSI PRO A620M-E — manufacturer specificationsNo source recorded for this side.
Evidence is missing or conflicting on at least one side. This is not a verified difference.
MSI lists RAID modes for SATA drives only; NVMe RAID support is not stated. · Manufacturer specification
MSI PRO A620M-E — manufacturer specificationsManufacturer specification · Requires compatible drives and array configuration; no data protection guarantee.
MSI PRO B650M-P — manufacturer specificationsEvidence is missing or conflicting on at least one side. This is not a verified difference.
7 shared fields have the same recorded value.
| Specification | MSI PRO A620M-E | MSI PRO B650M-P |
|---|---|---|
CPU socket SourcesMSI PRO A620M-E Manufacturer specification · Match the exact CPU and required BIOS as well as the physical socket. MSI PRO A620M-E — manufacturer specificationsMSI PRO B650M-P Manufacturer specification · Match the exact CPU and required BIOS as well as the physical socket. MSI PRO B650M-P — manufacturer specifications | AM5 | AM5 |
ChipsetDifferent Sources | AMD A620 | AMD B650 |
Form factorDifferent SourcesMSI PRO A620M-E Manufacturer specification · Board dimensions, not retail packaging. Check case mounting positions, clearance and cable routing. MSI PRO A620M-E — manufacturer specificationsMSI PRO B650M-P Manufacturer specification · Board dimensions, not retail packaging. Check case mounting positions, clearance and cable routing. MSI PRO B650M-P — manufacturer specifications | Micro-ATX; 243.84 × 211 mm | Micro-ATX; 243.84 × 243.84 mm |
CPU support / BIOS source SourcesMSI PRO A620M-E Manufacturer specification · Check MSI's exact CPU support list and its required BIOS. Family support does not confirm the firmware installed on a retail board. MSI PRO A620M-E — manufacturer specificationsMSI PRO B650M-P Manufacturer specification · Check MSI's exact CPU support list and its required BIOS. Family support does not confirm the firmware installed on a retail board. MSI PRO B650M-P — manufacturer specifications | AMD Ryzen 9000 / 8000 / 7000 Series | AMD Ryzen 9000 / 8000 / 7000 Series |
Rear Flash BIOS button SourcesMSI PRO A620M-E MSI's rear-panel list for this board does not mention a Flash BIOS button; check the manual if you need BIOS flashback. · Manufacturer specification MSI PRO A620M-E — manufacturer specificationsMSI PRO B650M-P Manufacturer specification · Button presence only. Recovery procedure and USB preparation require the exact manual. MSI PRO B650M-P — manufacturer specifications | Not provided | Yes |
Memory type, slots and limitDifferent SourcesMSI PRO A620M-E The overclocked speed is MSI's 1DPC 1R maximum; MSI lists 1DPC 2R up to 6000+ MHz. JEDEC default is DDR5-4800. · Manufacturer specification · CPU, BIOS and validated DIMM population determine supported capacity and speeds. DDR4 and DDR5 are not interchangeable. MSI PRO A620M-E — manufacturer specificationsMSI PRO B650M-P The overclocked speed is MSI's 1DPC 1R maximum; MSI lists 1DPC 2R and 2DPC 1R up to 6000+ and 2DPC 2R up to 5400+ MHz. JEDEC default is DDR5-4800. · Manufacturer specification · Manufacturer capacity ceiling for this exact board, not included memory or a performance measurement. CPU, BIOS, DIMM population and the validated-module list determine support. DDR5 slots require DDR5 modules; DDR4 and DDR5 are not interchangeable. MSI PRO B650M-P — manufacturer specifications | 2 DDR5 DIMM slots; dual channel; up to 128 GB; up to DDR5-6800+ (OC); AMD EXPO; non-ECC unbuffered | 4 DDR5 DIMM slots; dual channel; up to 256 GB; up to DDR5-7200+ (OC); AMD EXPO; non-ECC unbuffered |
Maximum listed memoryDifferent SourcesMSI PRO A620M-E Manufacturer specification · Manufacturer capacity ceiling for this exact board, not included memory or a performance measurement. CPU, BIOS, DIMM population and the validated-module list determine support. DDR5 slots require DDR5 modules; DDR4 and DDR5 are not interchangeable. MSI PRO A620M-E — manufacturer specificationsMSI PRO B650M-P Manufacturer specification · Manufacturer capacity ceiling for this exact board, not included memory or a performance measurement. CPU, BIOS, DIMM population and the validated-module list determine support. DDR5 slots require DDR5 modules; DDR4 and DDR5 are not interchangeable. MSI PRO B650M-P — manufacturer specifications | 128 GB | 256 GB |
DIMM slotsDifferent SourcesMSI PRO A620M-E Manufacturer specification · Physical DDR5 module positions, not included modules. Consult the board manual for population order and compatible capacities. MSI PRO A620M-E — manufacturer specificationsMSI PRO B650M-P Manufacturer specification · Physical DDR5 module positions, not included modules. Consult the board manual for population order and compatible capacities. MSI PRO B650M-P — manufacturer specifications | 2 | 4 |
Memory population OC limitsDifferent SourcesMSI PRO A620M-E MSI labels these memory speeds in MHz (manufacturer notation); they are the rated data rates. · Manufacturer specification · Manufacturer OC limits, not guaranteed stability or measured performance. CPU, BIOS and memory-module compatibility apply. MSI PRO A620M-E — manufacturer specificationsMSI PRO B650M-P MSI labels these memory speeds in MHz (manufacturer notation); they are the rated data rates. · Manufacturer specification · Manufacturer OC configurations, not guaranteed kit speed or measured application performance. CPU, BIOS, memory rank and DIMMs per channel determine support. MSI PRO B650M-P — manufacturer specifications | 1DPC 1R: 6800+ MHz; 1DPC 2R: 6000+ MHz | 1DPC 1R up to 7200+; 1DPC 2R / 2DPC 1R up to 6000+; 2DPC 2R up to 5400+ |
Storage interfacesDifferent SourcesMSI PRO A620M-E M2_1 connects to the CPU. · Manufacturer specification · M2_1 accepts 2280/2260 drives. MSI PRO A620M-E — manufacturer specificationsMSI PRO B650M-P M2_1 connects to the CPU; M2_2 connects to the chipset. · Manufacturer specification · Both M.2 slots accept 2280/2260 drives. Check drive length and the board manual for slot-specific limits. MSI PRO B650M-P — manufacturer specifications | 1 × M.2 PCIe 4.0 x4; 4 × SATA 6 Gb/s | 2 × M.2 PCIe 4.0 x4; 4 × SATA 6 Gb/s |
Onboard M.2 storage slotsDifferent SourcesMSI PRO A620M-E Manufacturer specification · Onboard M.2 storage positions only. M2_1 accepts 2280/2260 drives. Check exact processor, BIOS and drive compatibility. MSI PRO A620M-E — manufacturer specificationsMSI PRO B650M-P Manufacturer specification · Onboard M.2 storage positions only. Both M.2 slots accept 2280/2260 drives. Verify the exact CPU, BIOS and drive compatibility. MSI PRO B650M-P — manufacturer specifications | 1 | 2 |
SATA storage ports SourcesMSI PRO A620M-E Manufacturer specification · SATA 6 Gb/s connectors, not supplied drives or power cables. M2_1 accepts 2280/2260 drives. Check exact processor, BIOS and drive compatibility. MSI PRO A620M-E — manufacturer specificationsMSI PRO B650M-P Manufacturer specification · SATA 6 Gb/s connectors, not supplied drives or power cables. Both M.2 slots accept 2280/2260 drives. Verify the exact CPU, BIOS and drive compatibility. MSI PRO B650M-P — manufacturer specifications | 4 | 4 |
SATA RAID modes SourcesMSI PRO B650M-P Manufacturer specification · Requires compatible drives and array configuration; no data protection guarantee. MSI PRO B650M-P — manufacturer specifications | RAID 0/1/10 | RAID 0/1/10 |
NVMe RAID modes SourcesMSI PRO A620M-E MSI lists RAID modes for SATA drives only; NVMe RAID support is not stated. · Manufacturer specification MSI PRO A620M-E — manufacturer specificationsMSI PRO B650M-P Manufacturer specification · Requires compatible drives and array configuration; no data protection guarantee. MSI PRO B650M-P — manufacturer specifications | Not provided | RAID 0/1 |
Primary PCIe link SourcesMSI PRO A620M-E Manufacturer specification · x16 with Ryzen 9000/7000; x8 with Ryzen 8700/8600/8400; x4 with Ryzen 8500/8300. MSI PRO A620M-E — manufacturer specificationsMSI PRO B650M-P Manufacturer specification · x16 with Ryzen 9000/7000; x8 with Ryzen 8700/8600/8400; x4 with Ryzen 8500/8300. MSI PRO B650M-P — manufacturer specifications | PCI_E1: CPU PCIe 4.0 up to x16 | PCI_E1: CPU PCIe 4.0 up to x16 |
Secondary expansion linksDifferent SourcesMSI PRO A620M-E Manufacturer specification · The secondary connector is labelled PCI_E2 on this model. MSI PRO A620M-E — manufacturer specificationsMSI PRO B650M-P PCI_E1 connects to the CPU; PCI_E2 and PCI_E3 connect to the chipset. · Manufacturer specification · Electrical link widths, not a guarantee of the installed system's performance. The x16 slot runs at x8 with Ryzen 8700/8600/8400 and x4 with Ryzen 8500/8300. MSI PRO B650M-P — manufacturer specifications | 1 PCIe 3.0 x1 slot | 1 × PCIe 4.0 x16; 2 × PCIe 3.0 x1 |
Onboard audio hardware SourcesMSI PRO A620M-E Manufacturer specification · Manufacturer-listed onboard audio hardware, not a measured sound-quality result. Where alternatives are listed, no particular unseen controller revision is promised. MSI PRO A620M-E — manufacturer specificationsMSI PRO B650M-P Manufacturer specification · Manufacturer-listed onboard audio hardware, not a measured sound-quality result. Where alternatives are listed, no particular unseen controller revision is promised. MSI PRO B650M-P — manufacturer specifications | Realtek ALC897 codec; 7.1-channel | Realtek ALC897 codec; 7.1-channel |
Processor-dependent display outputsDifferent SourcesMSI PRO A620M-E Manufacturer specification · Requires integrated CPU graphics. VGA limits: 2048×1536 at 50 Hz, 2048×1280 or 1920×1200 at 60 Hz. MSI PRO A620M-E — manufacturer specificationsMSI PRO B650M-P Manufacturer specification · Requires integrated CPU graphics; supported modes depend on processor. MSI PRO B650M-P — manufacturer specifications | HDMI 2.1: up to 4K 60 Hz; VGA | HDMI 2.1 and DisplayPort 1.4: up to 4K 60 Hz; VGA: 1920×1200 at 60 Hz |
Rear USB portsDifferent SourcesMSI PRO B650M-P Manufacturer specification · Port inventory and interface ratings, not simultaneous measured throughput or charging power. MSI PRO B650M-P — manufacturer specifications | 2 USB 2.0; 4 USB 5 Gb/s Type-A | 4 USB 2.0; 2 USB 5 Gb/s Type-A; 2 USB 10 Gb/s Type-A |
Front USB header capacityDifferent SourcesMSI PRO A620M-E Manufacturer specification · Internal-header capacity; requires compatible case ports and wiring. Not rear-panel sockets. MSI PRO A620M-E — manufacturer specificationsMSI PRO B650M-P Manufacturer specification · Requires compatible case ports and cabling; not rear sockets. MSI PRO B650M-P — manufacturer specifications | 4 USB 2.0; 2 USB 5 Gb/s | 4 USB 2.0; 2 USB 5 Gb/s Type-A; 1 USB 10 Gb/s Type-C |
Network interfacesDifferent SourcesMSI PRO A620M-E Manufacturer specification · Wired Ethernet only; MSI lists no Wi-Fi or Bluetooth hardware for this board. MSI PRO A620M-E — manufacturer specificationsMSI PRO B650M-P Manufacturer specification · Wired Ethernet only; MSI lists no Wi-Fi or Bluetooth hardware for this board. MSI PRO B650M-P — manufacturer specifications | Realtek 8111H 1 Gb Ethernet | Realtek 8125BG 2.5 Gb Ethernet |
Fan and pump headersDifferent SourcesMSI PRO A620M-E Manufacturer specification · Counts do not establish connector current limits. MSI PRO A620M-E — manufacturer specificationsMSI PRO B650M-P Manufacturer specification · Board headers, not supplied fans or an assertion of current limits. MSI PRO B650M-P — manufacturer specifications | 1 CPU; 2 system fan headers | 1 CPU; 1 pump; 3 system fan headers |
Diagnostic indicators SourcesMSI PRO B650M-P Manufacturer specification · Status LEDs, not a numeric POST display or an automatic repair guarantee. MSI PRO B650M-P — manufacturer specifications | 4 EZ Debug LEDs | 4 EZ Debug LEDs |
ECC memory operating mode SourcesMSI PRO A620M-E MSI specifies non-ECC unbuffered memory and does not say whether ECC modules are accepted. · Manufacturer specification MSI PRO A620M-E — manufacturer specificationsMSI PRO B650M-P No source recorded. | Not provided | Not provided |
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Closest motherboards to this pair by shared key specifications. Not a popularity ranking.
Each record represents an explicitly checked model and configuration. Original import: 5 Sept 2026; this is not its verification date. This is not a list of current offers or a popularity ranking.
