UK manufacturer specification · Pro A520M-C/CSM
Pro A520M-C/CSM motherboard, identified in the ASUS UK catalogue. Specifications below retain the manufacturer’s configuration and interface conditions.
Specifications checked 17 Oct 2026.
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Manufacturer specifications5 verified differences, led by Form factor and dimensions, memory type, slots and limit and storage interfaces and restrictions. Compared in full below. Not a rating.
AM4 · 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.
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Differences first. Select a topic for its graphic, sources and conditions.
Check the exact configuration and source conditions for your use.
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.
5 verified differences, most decision-relevant first. All are also drawn in Visual facts above. Missing information stays separate.
Manufacturer specification
ASUS Pro A520M-C/CSM — official UK 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 Pro A520M-C/CSM — official UK 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 Pro A520M-C/CSM — official UK 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 Pro A520M-C/CSM — official UK 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 Pro A520M-C/CSM — official UK 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 Pro A520M-C/CSM — official UK 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 Pro A520M-C/CSM — official UK 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 Pro A520M-C/CSM — official UK 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.
2 shared fields have the same recorded value.
| Specification | ASUS Pro A520M-C/CSM | MSI A520M-A PRO |
|---|---|---|
CPU socket SourcesASUS Pro A520M-C/CSM Manufacturer specification ASUS Pro A520M-C/CSM — official UK 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 |
Chipset SourcesASUS Pro A520M-C/CSM Manufacturer specification ASUS Pro A520M-C/CSM — official UK technical specifications | AMD A520 | AMD A520 |
Form factor and dimensionsDifferent SourcesASUS Pro A520M-C/CSM Manufacturer specification ASUS Pro A520M-C/CSM — official UK 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 | 9.6 inch x 9.0 inch ( 24.4 cm x 22.9 cm ),mATX Form Factor | Micro-ATX; 236 × 200 mm |
CPU support and BIOS requirementsDifferent SourcesASUS Pro A520M-C/CSM 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 Pro A520M-C/CSM — official UK 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 | * Refer to https://www.asus.com for CPU support list.,AMD AM4 Socket for 3rd Gen AMD Ryzen™ and 3rd Gen AMD Ryzen™ with Radeon™ Graphics Processors * BIOS: 256 Mb Flash ROM, UEFI AMI BIOS | AMD Ryzen 5000 / 5000 G-Series / 4000 G-Series / 3000 / 3000 G-Series |
Listed operating systems SourcesASUS Pro A520M-C/CSM Manufacturer specification ASUS Pro A520M-C/CSM — official UK technical specificationsMSI A520M-A PRO No source recorded. | Windows® 10 64-bit | Not provided |
Memory type, slots and limitDifferent SourcesASUS Pro A520M-C/CSM Manufacturer specification ASUS Pro A520M-C/CSM — official UK 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 | * Refer to https://www.asus.com for the Memory QVL (Qualified Vendors Lists).,2 x DIMM, Max. 64GB, DDR4 4600(O.C)/4400(O.C)/4000(O.C.)/3866(O.C.)/3733(O.C.)/3600(O.C.)/3466(O.C.)/3333(O.C.)/3200/3000/2800/2666/2400/2133 MHz Un-buffered Memory *,* The maximum memory frequency supported varies by processor.,Dual Channel Memory Architecture,ECC Memory (ECC mode) support varies by CPU. | 2 DDR4 DIMM slots; dual channel; up to 64 GB; up to DDR4-4600+ (OC); A-XMP; non-ECC unbuffered |
Maximum listed memory SourcesASUS Pro A520M-C/CSM 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 Pro A520M-C/CSM 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 Pro A520M-C/CSM 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 Pro A520M-C/CSM 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 Pro A520M-C/CSM Manufacturer specification ASUS Pro A520M-C/CSM — official UK 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 Gen AMD Ryzen™ and 3rd Gen AMD Ryzen™ with Radeon™ Graphics Processors:,AMD A520 Chipset:,Total supports 1 x M.2 slot(s) and 4 x SATA 6Gb/s ports,1 x M.2 Socket 3, with M Key, Type 2242/2260/2280 (PCIE 3.0 x4 and SATA modes) storage devices support,4 x SATA 6Gb/s port(s),,Support Raid 0, 1, 10 | 1 × M.2 PCIe 3.0 x4; M.2 slot also supports SATA; 4 × SATA 6 Gb/s |
Onboard M.2 storage slots SourcesASUS Pro A520M-C/CSM 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 Pro A520M-C/CSM 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 Pro A520M-C/CSM No source recorded. | Not provided | RAID 0/1/10 |
Expansion slots and restrictions SourcesASUS Pro A520M-C/CSM Manufacturer specification ASUS Pro A520M-C/CSM — official UK technical specificationsMSI A520M-A PRO No source recorded. | 3rd Gen AMD Ryzen™ and 3rd Gen AMD Ryzen™ with Radeon™ Graphics Processors,AMD A520 Chipset,2 x PCIe 3.0 x1,1 x PCI,1 x PCIe 3.0 x16 (x16 mode) | Not provided |
Primary PCIe link SourcesASUS Pro A520M-C/CSM 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 Pro A520M-C/CSM No source recorded. | Not provided | 1 PCIe 3.0 x1 slot |
Audio interfacesDifferent SourcesASUS Pro A520M-C/CSM Manufacturer specification ASUS Pro A520M-C/CSM — official UK 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 ALC8877.1 Surround Sound High Definition Audio CODEC *,- Supports: Jack-detection, Multi-streaming, Front Panel Jack-retasking, up to 24-Bit/192kHz playback,* 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 Pro A520M-C/CSM 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 Pro A520M-C/CSM 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 Pro A520M-C/CSM 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 Pro A520M-C/CSM Manufacturer specification ASUS Pro A520M-C/CSM — official UK 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 1Gb Ethernet,ASUS LANGuard | Realtek 8111H 1 Gb Ethernet |
Fan and pump headers SourcesASUS Pro A520M-C/CSM 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 Pro A520M-C/CSM 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 Pro A520M-C/CSM 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 Pro A520M-C/CSM 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.
