Biostar A520MHK socket AM4 DDR4 Motherboard
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Payment Options
Biostar A520MHK - Budget-Friendly AMD AM4 Micro ATX Motherboard
Build an affordable AMD Ryzen system with the Biostar A520MHK Socket AM4 DDR4 Motherboard. This cost-effective Micro ATX motherboard features the AMD A520 chipset, providing reliable performance for budget gaming, home office, and everyday computing. Compatible with AMD Ryzen 5000, 4000 G-Series, and 3000 Series processors, this motherboard offers excellent value without compromising essential features.
Key Features
- AMD Socket AM4 - Compatible with AMD Ryzen 5000, 4000 G-Series, and 3000 Series processors
- AMD A520 Chipset - Reliable performance with essential features for budget builds
- DDR4 Memory - 2 DIMM slots supporting up to 64GB, speeds up to DDR4-4600+ (OC)
- M.2 NVMe Support - High-speed M.2 slot for fast NVMe SSD storage
- Micro ATX Form Factor - Compact design fits in smaller cases while maintaining functionality
- USB 3.2 Gen1 - Fast USB 3.2 ports for peripherals and storage devices
- Realtek Gigabit LAN - Stable network connectivity for online activities
- HD Audio - Integrated audio codec for clear sound output
Technical Specifications
| Model | Biostar A520MHK |
| Socket | AMD Socket AM4 |
| Chipset | AMD A520 |
| Form Factor | Micro ATX (244 x 244 mm) |
| CPU Support | AMD Ryzen 5000 Series, Ryzen 4000 G-Series, Ryzen 3000 Series |
| Memory Slots | 2 x DDR4 DIMM |
| Maximum Memory | 64GB |
| Memory Speed | DDR4-4600+ (OC) / DDR4-3200 (JEDEC) |
| Memory Channels | Dual Channel |
| M.2 Slots | 1 x M.2 (PCIe 3.0 x4, supports NVMe) |
| SATA Ports | 4 x SATA3 6Gb/s |
| PCIe x16 Slots | 1 x PCIe 3.0 x16 (graphics card) |
| PCIe x1 Slots | 1 x PCIe 3.0 x1 (expansion card) |
| LAN | Realtek Gigabit Ethernet |
| Audio | HD Audio Codec |
| Power Connectors | 1 x 24-pin ATX, 1 x 8-pin CPU |
Rear I/O Panel
- USB 3.2 Gen1 - High-speed USB ports for fast data transfers (up to 5 Gbps)
- USB 2.0 - Legacy USB support for keyboards, mice, and other peripherals
- Video Outputs - HDMI and/or VGA for integrated graphics (with compatible APUs)
- PS/2 Port - PS/2 keyboard/mouse combo port
- Ethernet Port - RJ45 Gigabit LAN
- Audio Jacks - 3.5mm audio connectors for speakers and microphone
Storage Capabilities
- M.2 NVMe Slot - 1x M.2 slot with PCIe 3.0 x4 support for fast NVMe SSDs (up to 3500 MB/s read speeds)
- SATA3 Support - 4x SATA3 ports at 6 Gb/s for traditional hard drives and SATA SSDs
- Flexible Storage - Combine M.2 NVMe and SATA drives for optimal storage configuration
- RAID Support - RAID 0, RAID 1 for data redundancy and performance
Expansion & Connectivity
- PCIe 3.0 x16 Slot - Full-speed graphics card support for AMD Radeon and NVIDIA GeForce GPUs
- PCIe 3.0 x1 Slot - Expansion slot for Wi-Fi cards, capture cards, or other add-in cards
- Internal USB Headers - Front panel USB 3.2 Gen1 and USB 2.0 headers for case connectivity
- Front Panel Connectors - Standard ATX front panel headers for power button, reset, LEDs, and audio
CPU Compatibility
- AMD Ryzen 5000 Series - Ryzen 9 5950X, 5900X, Ryzen 7 5800X, 5700X, Ryzen 5 5600X, 5600 (may require BIOS update)
- AMD Ryzen 4000 G-Series - Ryzen 7 4700G, Ryzen 5 4600G, Ryzen 3 4300G (with integrated Radeon Graphics)
- AMD Ryzen 3000 Series - Ryzen 9 3950X, 3900X, Ryzen 7 3800X, 3700X, Ryzen 5 3600X, 3600, Ryzen 3 3300X, 3100
- Note - Ryzen 5000 series may require BIOS update. Check Biostar website for latest BIOS version before installation.
Memory Performance
- Dual Channel DDR4 - Enhanced memory bandwidth with dual-channel architecture
- Overclocking Support - DDR4-4600+ (OC) with manual memory overclocking in BIOS
- Standard JEDEC - DDR4-3200 support out of the box without overclocking
- 64GB Maximum - Support for up to 64GB total memory (2x 32GB modules)
- Cost-Effective - 2 DIMM slots provide adequate memory support for budget builds
Key Differences from B550
- PCIe 3.0 - Uses PCIe 3.0 instead of PCIe 4.0 (still excellent for most GPUs and SSDs)
- Lower Price - More affordable option for budget-conscious builders
- 2 RAM Slots - 2 DIMM slots instead of 4 (sufficient for most builds)
- Essential Features - Focuses on core functionality without premium features
- Same CPU Support - Compatible with same Ryzen 3000/4000G/5000 processors as B550
Ideal For
- Budget Gaming Builds - Affordable foundation for entry-level gaming PCs
- Home Office PCs - Cost-effective solution for productivity and everyday computing
- Basic Workstations - Simple builds for office work, web browsing, and light multitasking
- Compact Systems - Micro ATX form factor for space-saving builds
- APU Systems - Perfect pairing with Ryzen G-Series APUs for graphics-free builds
- Upgrade on a Budget - Cost-effective upgrade path for older AM4 systems
System Requirements
- AMD Ryzen AM4 processor (3000, 4000 G-Series, or 5000 series)
- DDR4 memory modules (2x recommended for dual-channel)
- ATX power supply with 24-pin and 8-pin CPU power connectors
- Micro ATX or ATX compatible computer case
- Windows 10/11 (64-bit) or Linux operating system
Package Contents
- Biostar A520MHK motherboard
- I/O shield
- SATA cables
- User manual
- Driver CD/DVD
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