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header-product Motherboard BIOSTAR B450MX-S micro ATX, AMD B450, Socket AM4, 4x DIMM, DDR4, 128 GB, M.2, SATA III, Gigabit LAN
103.49 €

Motherboard BIOSTAR B450MX-S micro ATX, AMD B450, Socket AM4, 4x DIMM, DDR4, 128 GB, M.2, SATA III, Gigabit LAN

BIOSTAR B450MX-S micro ATX motherboard Photo 1
BIOSTAR B450MX-S micro ATX motherboard Photo 2
BIOSTAR B450MX-S micro ATX motherboard Photo 3
BIOSTAR B450MX-S micro ATX motherboard Photo 4
BIOSTAR B450MX-S micro ATX motherboard Photo 1
BIOSTAR B450MX-S micro ATX motherboard Photo 2
BIOSTAR B450MX-S micro ATX motherboard Photo 3
BIOSTAR B450MX-S micro ATX motherboard Photo 4
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Motherboard BIOSTAR B450MX-S micro ATX, AMD B450, Socket AM4, 4x DIMM, DDR4, 128 GB, M.2, SATA III, Gigabit LAN

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Motherboard BIOSTAR B450MX-S micro ATX, AMD B450, Socket AM4, 4x DIMM, DDR4, 128 GB, M.2, SATA III, Gigabit LAN

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Short description

BIOSTAR B450MX-S is a micro ATX motherboard for Socket AM4 CPUs (AMD Athlon, Ryzen 2000/3000 series). It features the AMD B450 chipset, four DDR4 DIMM slots supporting up to 128 GB RAM, one PCIe x16 (Gen3) slot, M.2 and SATA III storage support, RAID 0/1/10 and Realtek RTL8111H Gigabit Ethernet for PC builds and upgrades.
Available for order: 10 pcs.
Warranty: 2 Years
SKU: 10513009
Manufacturer: BIOSTAR
free shipment

Cheapest delivery:

Venipak Locker LV

Pick-up points

Venipak Locker LV

Cost

1.89 €

Deliver

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Customer service center
2b. Kengaraga str., Riga, Latvia, LV-1063
14.07.2026 {{selectedOffer.officeDeliveryString}}
free
Courier Delivery Please note that in case of a large parcel additional delivery costs may apply!
17.07.2026 {{selectedOffer.courierDeliveryString}}
From 4.99 € (Weight: 0.98 kg)
Parcel couriers
Venipak Locker LV / Latvijas Pasts pakomāts / Unisend LV / DPD Paku skapis / Omniva LV / Venipak Pickup LV / Latvijas Pasts nodaļa
17.07.2026 {{selectedOffer.parcelStationDeliveryString}}
From 1.89 €
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3 mth. х 34.5 €

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All payment Methods:
Bank transfer, Bank cards on-line, Apple Pay, Google Pay, Installment
36 months installment: from 2.87 euros per month
Price for companies: 85.53€ Price is valid only for legal clients
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Product information

Description

BIOSTAR B450MX-S is a micro ATX motherboard for Socket AM4 processors, compatible with AMD Athlon and Ryzen 2000/3000 series. Built on the AMD B450 chipset, the board supports up to 128 GB of DDR4 memory across four DIMM slots, a single PCIe x16 (Gen3) slot for graphics expansion, M.2 and SATA III storage interfaces, and an integrated Gigabit Ethernet controller. The board includes integrated HDMI with HDCP support, high-definition audio features and a range of platform-level protections and utilities for system stability and maintenance.

Advantages

The AMD B450 chipset provides broad platform control and PCIe bandwidth for discrete graphics while supporting overclocking and power management features. Hi‑Fi Ground and HD Audio design reduce noise and help preserve audio fidelity. PCIe M.2 and SATAIII 6Gbps provide modern storage performance and compatibility. Additional features such as digital PWM, Super Durable solid capacitors and moisture‑proof PCB construction improve reliability and component lifespan. UEFI BIOS and BIO‑Flasher simplify firmware management for upgrades and system configuration.

Suitable for

  • Compact desktop builds and small form factor PCs using micro ATX cases
  • Home and office systems requiring Gigabit LAN and HDMI output
  • Budget to mid-range gaming or multimedia systems with a single discrete GPU
  • Upgrading older Socket AM4 systems to support DDR4 memory and M.2 SSDs

Key specifications

  • Form factor: Micro ATX
  • Chipset: AMD B450
  • CPU socket: Socket AM4 (supports AMD Athlon and Ryzen 2000/3000 series)
  • Memory: 4x DDR4 DIMM slots, up to 128 GB total
  • Expansion: 1x PCIe x16 (PCIe Gen3)
  • Storage interfaces: M.2 (PCIe M.2 32Gb/s) and SATA III (6 Gbps)
  • Network: Integrated Gigabit Ethernet (Realtek RTL8111H)
  • Video output: HDMI with HDCP and 4K2K support
  • USB: USB 3.2 Gen1 Type-A support
  • Audio: HD Audio with Hi‑Fi Ground (isolation on PCB for improved clarity)
  • Power & durability: Digital PWM, Super Durable solid capacitors, OC/OV/OH protection, moisture‑proof PCB

How to use

Install the motherboard into a compatible micro ATX case, secure it using standoffs and screws, and connect the ATX power supply according to the motherboard manual. Populate DDR4 DIMMs into the recommended slots for dual‑channel operation and install the CPU into the Socket AM4 socket following the CPU and cooler manufacturer instructions. Attach storage devices to M.2 and SATA ports as required and install a graphics card into the PCIe x16 slot if needed. After completing hardware connections, boot to UEFI BIOS to configure memory settings, storage mode (AHCI/RAID), fan profiles with A.I FAN, and update firmware using BIO‑Flasher if a newer BIOS is available.

Usage recommendations

For stable performance, use matched DDR4 memory modules in the recommended slot configuration and keep the BIOS up to date via BIO‑Flasher. Configure A.I FAN profiles to balance cooling and noise, and employ the board’s protection features (OC/OV/OH) by using recommended power supplies and avoiding extreme voltage adjustments. When using M.2 NVMe drives, ensure proper thermal clearance and check motherboard manual for shared lanes or SATA/M.2 port multiplexing to avoid reduced port availability.

Specifications

Motherboard form factor:
Micro ATX
Motherboard chipset:
AMD B450
Component for:
PC
Processor socket:
Socket AM4
Number of memory slots:
4
Maximum internal memory:
128 GB
PCI Express x16 (Gen 3.x) slots:
1
Supported memory types:
DDR4-SDRAM
All features

Features

Motherboard form factor:
Micro ATX
Motherboard chipset:
AMD B450
Component for:
PC
Audio output channels:
7.1
Motherboard chipset family:
AMD

Processor

Processor manufacturer:
AMD
Compatible processor series:
AMD Athlon
Processor socket:
Socket AM4

Memory

Number of memory slots:
4
Maximum internal memory:
128 GB
Supported memory types:
DDR4-SDRAM
Supported memory clock speeds:
1866, 4333, 4266, 4200, 4133, 4066, 4000, 3600, 3200, 2933, 2667, 2400, 2133
Memory channels:
Dual-channel
Memory slots type:
DIMM

Expansion slots

PCI Express x1 (Gen 2.x) slots:
1
PCI Express x16 (Gen 2.x) slots:
1
PCI Express x16 (Gen 3.x) slots:
1
Number of M.2 (M) slots:
1

Graphics

DirectX version:
12.0
HDCP:
Yes

Network

Ethernet LAN:
Yes
LAN controller:
Realtek RTL8111H
Wi-Fi:
Yes
Ethernet interface type:
Gigabit Ethernet

Internal I/O

USB 2.0 connectors:
2
S/PDIF out connector:
Yes
CPU fan connector:
Yes
Number of COM connectors:
1
ATX Power connector (24-pin):
Yes
Front panel audio connector:
Yes
EPS power connector (8-pin):
Yes
USB 3.2 Gen 1 (3.1 Gen 1) connectors:
1
Number of SATA III connectors:
4
USB 3.2 Gen 2 (3.1 Gen 2) connectors:
0
Front panel connector:
Yes

Rear panel I/O ports

PS/2 ports quantity:
1
USB 2.0 ports quantity:
2
Ethernet LAN (RJ-45) ports:
1
VGA (D-Sub) ports quantity:
0
DVI-D ports quantity:
0
HDMI ports quantity:
1
USB 3.2 Gen 1 (3.1 Gen 1) Type-A ports quantity:
4
USB 3.2 Gen 1 (3.1 Gen 1) Type-C ports quantity:
0
USB 3.2 Gen 2 (3.1 Gen 2) Type-A ports quantity:
0
USB 3.2 Gen 2 (3.1 Gen 2) Type-C ports quantity:
0

Storage controllers

RAID levels:
1, 10
Supported storage drive types:
HDD
RAID support:
Yes
Supported storage drive interfaces:
M.2, SATA III

BIOS

BIOS type:
UEFI AMI
Clear CMOS jumper:
Yes

Weight & dimensions

Width:
244 mm
Depth:
244 mm

Other features

Audio chip:
Realtek ALC887

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Customer reviews

Customer questions

FAQ

How much does the BIOSTAR B450MX-S micro ATX motherboard cost, and is it available for purchase?

The price is 103.49 € (valid at the time of publication and already includes all taxes). The item is available for order — 10 pcs. are in stock, and you can place your purchase right now with delivery across Latvia and Europe or choose pickup at the Riga collection point. We offer favorable purchase terms, including the option to split the payment into convenient monthly installments. Availability and price are updated in real time, so we recommend placing your order in advance.

If I order this product today, when will I receive my order?

If you place your order today, delivery will be as fast and convenient as possible. You will be able to pick up your order on 14.07.2026 at the Riga pickup point or choose delivery across Latvia and Europe. We carefully inspect every purchase and pack it securely for safe transportation.

What payment options are available?

AiO.lv offers several payment methods: Bank transfer, Bank cards on-line, Apple Pay, Google Pay, Installment. All transactions are 100% secure and encrypted.

Can BIOSTAR B450MX-S micro ATX motherboard be purchased with a lease?

Yes, the purchase is available both on credit and with an interest-free installment plan. We work with leading banks and leasing companies in Latvia, allowing you to make your purchase on convenient terms — with a minimal down payment and a repayment period from 3 to 36 months. You can apply for credit or installments for the BIOSTAR B450MX-S micro ATX motherboard online, and the application process is as simple as possible:
  • Select the product on the website and add it to your cart;
  • When placing your order, choose the payment method “Installments”;
  • Fill in the required details for the lending partner;
  • Receive a decision within a few minutes.
For more information about available payment options, interest-free installment terms, and credit conditions in Latvia, please visit the Payment page.

Can this product be purchased for a company (with VAT)?

Yes. AiO.lv works with legal entities in Latvia and across Europe. The product price already includes VAT. For certain product categories, as well as for companies from other EU countries with a valid VAT number, a 0% VAT rate may apply. We issue the invoice immediately after the order is placed, support electronic BIS invoices, and automatically generate all necessary accounting documents. You can complete the purchase for a company online — simply select the company profile and choose bank transfer as the payment method during checkout.

What is the warranty period?

All BIOSTAR products come with an official 2 Years warranty. It covers all manufacturing defects and malfunctions that may occur during use. The warranty is valid at all authorized BIOSTAR service centers and through AiO.lv

Can the product be returned after purchase?

Yes, you can return the product within 14 days of purchase if you bought it as a consumer (not a legal entity). Returns are possible without giving any reason — the main condition is that the product retains its original appearance and full set of accessories. We will make the process as simple and convenient as possible: just contact our customer support team, and we will help you arrange the return.

Where should I contact for warranty service?

For warranty-related questions you can contact the AiO.lv (SIA VSPRO) customer support team. We will assist with consultation, warranty claim processing, and coordination with certified service centers.

How can I tell if this product suits my needs?

When making a choice, we recommend paying attention to the key features: motherboard form factor, motherboard chipset, component for, processor socket, number of memory slots, maximum internal memory, pci express x16 (gen 3.x) slots, supported memory types, compatibility with your devices or usage conditions, material quality, functionality, and warranty terms. These characteristics will help you determine how well the model meets your needs.

Where can I download the instructions for BIOSTAR B450MX-S micro ATX motherboard?

You can download the instructions in PDF format from the “Instructions” section on the product description page. The file contains complete information about installation, setup, and usage.
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