Global manufacturer specification · B450M-DRAGON
B450M-DRAGON motherboard, identified in the ASUS Global catalogue. Specifications below retain the manufacturer’s configuration and interface conditions.
Specifications checked 17 Oct 2026.
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Manufacturer specificationsAM4 · Micro-ATX · DDR4 · board-only configuration · MSI global specification
A compact Micro-ATX AM4 motherboard with AMD A520: two DDR4 slots (up to 64 GB, DDR4-4600+ OC), a PCIe 3.0 x16 graphics slot, one M.2 slot and Realtek 1 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.
6 verified differences, most decision-relevant first. All are also drawn in Visual facts above. Missing information stays separate.
Manufacturer specification
ASUS B450M-DRAGON — official Global technical specificationsDifferent hardware. A chip name or generation does not quantify real-world performance.
Manufacturer specification
ASUS B450M-DRAGON — official Global technical specificationsManufacturer specification · Board dimensions, not retail packaging. Check case mounting positions, clearance and cable routing.
MSI A520M-A PRO — manufacturer specificationsCheck the exact configuration and source conditions for your use.
Manufacturer specification
ASUS B450M-DRAGON — official Global technical specificationsThe overclocked speed is MSI's 1DPC 1R maximum; MSI lists 1DPC 2R up to 3866 MHz. JEDEC speeds run up to DDR4-3200. · Manufacturer specification · CPU, BIOS and validated DIMM population determine supported capacity and speeds. DDR4 and DDR5 are not interchangeable.
MSI A520M-A PRO — manufacturer specificationsCheck the exact configuration and source conditions for your use.
Manufacturer specification
ASUS B450M-DRAGON — official Global technical specificationsThe M.2 slot connects to the CPU. · Manufacturer specification · With Athlon processors with Radeon Vega Graphics the M.2 slot works in SATA mode only. It accepts 2242/2260/2280 drives.
MSI A520M-A PRO — manufacturer specificationsCheck the exact configuration and source conditions for your use.
Manufacturer specification
ASUS B450M-DRAGON — official Global technical specificationsManufacturer specification · Wired Ethernet only; MSI lists no Wi-Fi or Bluetooth hardware for this board.
MSI A520M-A PRO — manufacturer specificationsCheck the exact configuration and source conditions for your use.
Manufacturer specification
ASUS B450M-DRAGON — official Global technical specificationsManufacturer specification · Manufacturer-listed onboard audio hardware, not a measured sound-quality result. Where alternatives are listed, no particular unseen controller revision is promised.
MSI A520M-A PRO — manufacturer specificationsCheck the exact configuration and source conditions for your use.
Manufacturer specification · Exact CPU support and BIOS revision depend on the processor and the current ASUS CPU support list; the family statement is not a guarantee for every processor.
ASUS B450M-DRAGON — official Global technical specificationsManufacturer 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 A520M-A PRO — manufacturer specificationsThese descriptions or measurements differ. Wording alone does not establish a different capability; check the exact configuration.
No source recorded for this side.
Manufacturer specification · Physical DDR4 module positions, not included modules. Consult the board manual for population order and compatible capacities.
MSI A520M-A PRO — manufacturer specificationsEvidence is missing or conflicting on at least one side. This is not a verified difference.
No source recorded for this side.
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. DDR4 slots require DDR4 modules; DDR4 and DDR5 are not interchangeable.
MSI A520M-A PRO — manufacturer specificationsEvidence is missing or conflicting on at least one side. This is not a verified difference.
No source recorded for this side.
Manufacturer specification · Onboard M.2 storage positions only. With Athlon processors with Radeon Vega Graphics, MSI lists SATA mode only for M.2. Supported M.2 lengths are 2242/2260/2280; verify the exact processor support list.
MSI A520M-A PRO — manufacturer specificationsEvidence is missing or conflicting on at least one side. This is not a verified difference.
No source recorded for this side.
Evidence is missing or conflicting on at least one side. This is not a verified difference.
No source recorded for this side.
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 A520M-A PRO — manufacturer specificationsEvidence is missing or conflicting on at least one side. This is not a verified difference.
No source recorded for this side.
Manufacturer specification · MSI's datasheet lists EZ Debug LED without the LED count; it is not a numeric POST code display.
MSI A520M-A PRO — exact model datasheetEvidence is missing or conflicting on at least one side. This is not a verified difference.
No source recorded for this side.
Manufacturer specification · ECC modules run in non-ECC mode, so error correction is not active.
MSI A520M-A PRO — manufacturer specificationsEvidence is missing or conflicting on at least one side. This is not a verified difference.
Manufacturer specification
ASUS B450M-DRAGON — official Global technical specificationsNo source recorded for this side.
Evidence is missing or conflicting on at least one side. This is not a verified difference.
No source recorded for this side.
Manufacturer specification · Counts do not establish connector current limits.
MSI A520M-A PRO — manufacturer specificationsEvidence is missing or conflicting on at least one side. This is not a verified difference.
No source recorded for this side.
Manufacturer specification · Requires a processor with integrated graphics; supported modes depend on the CPU.
MSI A520M-A PRO — manufacturer specificationsEvidence is missing or conflicting on at least one side. This is not a verified difference.
No source recorded for this side.
MSI labels these memory speeds in MHz (manufacturer notation); they are the rated data rates. · Manufacturer specification · Manufacturer A-XMP/OC limits, not guaranteed stability or measured performance. CPU, BIOS and memory-module compatibility apply.
MSI A520M-A PRO — manufacturer specificationsEvidence is missing or conflicting on at least one side. This is not a verified difference.
No source recorded for this side.
MSI lists RAID modes for SATA drives only; NVMe RAID support is not stated. · Manufacturer specification
MSI A520M-A PRO — manufacturer specificationsEvidence is missing or conflicting on at least one side. This is not a verified difference.
Manufacturer specification
ASUS B450M-DRAGON — official Global technical specificationsNo source recorded for this side.
Evidence is missing or conflicting on at least one side. This is not a verified difference.
No source recorded for this side.
Manufacturer specification · x16 with Ryzen 5000/5000G/4000G/3000; x8 with Ryzen 3000G; x4 with Athlon with Radeon Graphics processors. Check the CPU support list for the exact processor.
MSI A520M-A PRO — manufacturer specificationsEvidence is missing or conflicting on at least one side. This is not a verified difference.
No source recorded for this side.
Manufacturer specification · SATA 6 Gb/s connectors, not supplied drives or power cables. With Athlon processors with Radeon Vega Graphics, MSI lists SATA mode only for M.2. Supported M.2 lengths are 2242/2260/2280; verify the exact processor support list.
MSI A520M-A PRO — manufacturer specificationsEvidence is missing or conflicting on at least one side. This is not a verified difference.
No source recorded for this side.
Evidence is missing or conflicting on at least one side. This is not a verified difference.
No source recorded for this side.
Manufacturer specification · Internal-header capacity; requires compatible case ports and wiring. Not rear-panel sockets.
MSI A520M-A PRO — manufacturer specificationsEvidence is missing or conflicting on at least one side. This is not a verified difference.
No source recorded for this side.
Manufacturer specification · The detailed specification identifies the two rear USB 2.0 ports as Type-A.
MSI A520M-A PRO — manufacturer specificationsEvidence is missing or conflicting on at least one side. This is not a verified difference.
1 shared field has the same recorded value.
| Specification | ASUS B450M-DRAGON | MSI A520M-A PRO |
|---|---|---|
CPU socket SourcesASUS B450M-DRAGON Manufacturer specification ASUS B450M-DRAGON — official Global technical specificationsMSI A520M-A PRO Manufacturer specification · Match the exact CPU and required BIOS as well as the physical socket. MSI A520M-A PRO — manufacturer specifications | AM4 | AM4 |
ChipsetDifferent SourcesASUS B450M-DRAGON Manufacturer specification ASUS B450M-DRAGON — official Global technical specifications | AMD B450 | AMD A520 |
Form factor and dimensionsDifferent SourcesASUS B450M-DRAGON Manufacturer specification ASUS B450M-DRAGON — official Global technical specificationsMSI A520M-A PRO Manufacturer specification · Board dimensions, not retail packaging. Check case mounting positions, clearance and cable routing. MSI A520M-A PRO — manufacturer specifications | mATX Form Factor,8.9 inch x 8.7 inch ( 22.6 cm x 22.1 cm ) | Micro-ATX; 236 × 200 mm |
CPU support and BIOS requirementsDifferent SourcesASUS B450M-DRAGON Manufacturer specification · Exact CPU support and BIOS revision depend on the processor and the current ASUS CPU support list; the family statement is not a guarantee for every processor. ASUS B450M-DRAGON — official Global technical specificationsMSI A520M-A PRO 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 A520M-A PRO — manufacturer specifications | AMD AM4 Socket for AMD Ryzen™ 5000 Series/ 5000 G-Series/ 4000 G-Series/ 3rd/2nd/1st Gen AMD Ryzen™/ 2nd and 1st Gen AMD Ryzen™ with Radeon™ Vega Graphics/ Athlon™ with Radeon™ Vega Graphics Processors,* Refer to www.asus.com for CPU support list BIOS: 128 Mb Flash ROM, UEFI AMI BIOS, PnP, SM BIOS 3.1, ACPI 6.1, Multi-language BIOS, ASUS EZ Flash 3, ASUS CrashFree BIOS 3, F3 My Favorite, Last Modified log, F12 PrintScreen, ASUS DRAM SPD (Serial Presence Detect) memory information, F6 Qfan Control | AMD Ryzen 5000 / 5000 G-Series / 4000 G-Series / 3000 / 3000 G-Series |
Listed operating systems SourcesASUS B450M-DRAGON Manufacturer specification ASUS B450M-DRAGON — official Global technical specificationsMSI A520M-A PRO No source recorded. | Windows® 7 64-bit *2,Windows® 10 64-bit | Not provided |
Memory type, slots and limitDifferent SourcesASUS B450M-DRAGON Manufacturer specification ASUS B450M-DRAGON — official Global technical specificationsMSI A520M-A PRO The overclocked speed is MSI's 1DPC 1R maximum; MSI lists 1DPC 2R up to 3866 MHz. JEDEC speeds run up to DDR4-3200. · Manufacturer specification · CPU, BIOS and validated DIMM population determine supported capacity and speeds. DDR4 and DDR5 are not interchangeable. MSI A520M-A PRO — manufacturer specifications | 2 x DIMM, Max. 64GB, DDR4 4400(O.C)/3466(O.C.)/3200(O.C.)/3000(O.C.)/2933(O.C.)/2800(O.C.)/2666/2400/2133 MHz Un-buffered Memory,3rd/2nd/1st Gen AMD Ryzen™/ 2nd and 1st Gen AMD Ryzen™ with Radeon™ Vega Graphics/ Athlon™ with Radeon™ Vega Graphics Processors,Dual Channel Memory Architecture,ECC Memory (ECC mode) support varies by CPU.,* Refer to www.asus.com for the Memory QVL (Qualified Vendors Lists).,* The maximum memory frequency supported varies by processor. | 2 DDR4 DIMM slots; dual channel; up to 64 GB; up to DDR4-4600+ (OC); A-XMP; non-ECC unbuffered |
Maximum listed memory SourcesASUS B450M-DRAGON No source recorded. MSI A520M-A PRO 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. DDR4 slots require DDR4 modules; DDR4 and DDR5 are not interchangeable. MSI A520M-A PRO — manufacturer specifications | Not provided | 64 GB |
DIMM slots SourcesASUS B450M-DRAGON No source recorded. MSI A520M-A PRO Manufacturer specification · Physical DDR4 module positions, not included modules. Consult the board manual for population order and compatible capacities. MSI A520M-A PRO — manufacturer specifications | Not provided | 2 |
Memory population OC limits SourcesASUS B450M-DRAGON No source recorded. MSI A520M-A PRO MSI labels these memory speeds in MHz (manufacturer notation); they are the rated data rates. · Manufacturer specification · Manufacturer A-XMP/OC limits, not guaranteed stability or measured performance. CPU, BIOS and memory-module compatibility apply. MSI A520M-A PRO — manufacturer specifications | Not provided | 1DPC 1R: 4600 MHz; 1DPC 2R: 3866 MHz |
ECC memory operating mode SourcesASUS B450M-DRAGON No source recorded. MSI A520M-A PRO Manufacturer specification · ECC modules run in non-ECC mode, so error correction is not active. MSI A520M-A PRO — manufacturer specifications | Not provided | ECC UDIMM accepted in non-ECC mode |
Storage interfaces and restrictionsDifferent SourcesASUS B450M-DRAGON Manufacturer specification ASUS B450M-DRAGON — official Global technical specificationsMSI A520M-A PRO The M.2 slot connects to the CPU. · Manufacturer specification · With Athlon processors with Radeon Vega Graphics the M.2 slot works in SATA mode only. It accepts 2242/2260/2280 drives. MSI A520M-A PRO — manufacturer specifications | 3rd/2nd/1st Gen AMD Ryzen™/ 2nd and 1st Gen AMD Ryzen™ with Radeon™ Vega Graphics:,AMD B450 chipset:,4 x SATA 6Gb/s port(s), gray,,Support Raid 0, 1, 10,1 x M.2 Socket 3, with M key, type 2242/2260/2280 storage devices support (SATA & PCIE 3.0 x 4 mode),AMD Athlon™ with Radeon™ Vega Graphics Processors:,1 x M.2 Socket 3, with M key, type 2242/2260/2280 storage devices support (SATA mode) | 1 × M.2 PCIe 3.0 x4; M.2 slot also supports SATA; 4 × SATA 6 Gb/s |
Onboard M.2 storage slots SourcesASUS B450M-DRAGON No source recorded. MSI A520M-A PRO Manufacturer specification · Onboard M.2 storage positions only. With Athlon processors with Radeon Vega Graphics, MSI lists SATA mode only for M.2. Supported M.2 lengths are 2242/2260/2280; verify the exact processor support list. MSI A520M-A PRO — manufacturer specifications | Not provided | 1 |
SATA storage ports SourcesASUS B450M-DRAGON No source recorded. MSI A520M-A PRO Manufacturer specification · SATA 6 Gb/s connectors, not supplied drives or power cables. With Athlon processors with Radeon Vega Graphics, MSI lists SATA mode only for M.2. Supported M.2 lengths are 2242/2260/2280; verify the exact processor support list. MSI A520M-A PRO — manufacturer specifications | Not provided | 4 |
SATA RAID modes SourcesASUS B450M-DRAGON No source recorded. | Not provided | RAID 0/1/10 |
Expansion slots and restrictions SourcesASUS B450M-DRAGON Manufacturer specification ASUS B450M-DRAGON — official Global technical specificationsMSI A520M-A PRO No source recorded. | 3rd/2nd/1st Gen AMD Ryzen™ Processors,1 x PCIe 3.0/2.0 x16 (x8 mode) *1,AMD B450 chipset,1 x PCIe 3.0/2.0 x16 (x16 mode),AMD Athlon™ with Radeon™ Vega Graphics Processors,1 x PCIe 3.0/2.0 x16 (max at x4 mode),2 x PCIe 2.0 x1 | Not provided |
Primary PCIe link SourcesASUS B450M-DRAGON No source recorded. MSI A520M-A PRO Manufacturer specification · x16 with Ryzen 5000/5000G/4000G/3000; x8 with Ryzen 3000G; x4 with Athlon with Radeon Graphics processors. Check the CPU support list for the exact processor. MSI A520M-A PRO — manufacturer specifications | Not provided | x16 slot: CPU PCIe 3.0 up to x16 |
Secondary expansion links SourcesASUS B450M-DRAGON No source recorded. | Not provided | 1 PCIe 3.0 x1 slot |
Audio interfacesDifferent SourcesASUS B450M-DRAGON Manufacturer specification ASUS B450M-DRAGON — official Global technical specificationsMSI A520M-A PRO 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 A520M-A PRO — manufacturer specifications | Realtek ALC887/8978-Channel High Definition Audio CODEC,- LED-illuminated design,- Audio Shielding,- Dedicated audio PCB layers,- Premium Japanese audio capacitors,Audio Feature:,* Choose the chassis with HD audio module in front panel to support 8-channel audio output. | Realtek ALC892 or ALC897 codec; 7.1-channel |
Processor-dependent display outputs SourcesASUS B450M-DRAGON No source recorded. MSI A520M-A PRO Manufacturer specification · Requires a processor with integrated graphics; supported modes depend on the CPU. MSI A520M-A PRO — manufacturer specifications | Not provided | HDMI 2.1: up to 4096×2160 at 60 Hz; DVI-D: up to 1920×1200 at 60 Hz |
Rear USB ports SourcesASUS B450M-DRAGON No source recorded. MSI A520M-A PRO Manufacturer specification · The detailed specification identifies the two rear USB 2.0 ports as Type-A. MSI A520M-A PRO — manufacturer specifications | Not provided | 2 USB 2.0; 4 USB 5 Gb/s Type-A |
Front USB header capacity SourcesASUS B450M-DRAGON No source recorded. MSI A520M-A PRO Manufacturer specification · Internal-header capacity; requires compatible case ports and wiring. Not rear-panel sockets. MSI A520M-A PRO — manufacturer specifications | Not provided | 4 USB 2.0; 2 USB 5 Gb/s |
Network interfaces and requirementsDifferent SourcesASUS B450M-DRAGON Manufacturer specification ASUS B450M-DRAGON — official Global technical specificationsMSI A520M-A PRO Manufacturer specification · Wired Ethernet only; MSI lists no Wi-Fi or Bluetooth hardware for this board. MSI A520M-A PRO — manufacturer specifications | Realtek® RTL8111H, 1 x Gigabit LAN Controller(s),ASUS LAN Guard | Realtek 8111H 1 Gb Ethernet |
Fan and pump headers SourcesASUS B450M-DRAGON No source recorded. MSI A520M-A PRO Manufacturer specification · Counts do not establish connector current limits. MSI A520M-A PRO — manufacturer specifications | Not provided | 1 CPU; 1 system fan header |
Diagnostic indicators SourcesASUS B450M-DRAGON No source recorded. MSI A520M-A PRO Manufacturer specification · MSI's datasheet lists EZ Debug LED without the LED count; it is not a numeric POST code display. MSI A520M-A PRO — exact model datasheet | Not provided | EZ Debug LED |
NVMe RAID modes SourcesASUS B450M-DRAGON No source recorded. MSI A520M-A PRO MSI lists RAID modes for SATA drives only; NVMe RAID support is not stated. · Manufacturer specification MSI A520M-A PRO — manufacturer specifications | Not provided | Not provided |
|---|---|---|
Rear Flash BIOS button SourcesASUS B450M-DRAGON No source recorded. MSI A520M-A PRO 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 A520M-A PRO — manufacturer specifications | Not provided | Not provided |
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.
