# Micro ATX motherboard GIGABYTE B840M H for AMD Socket AM5, B840 chipset, 2x DDR5 DIMM up to 128 GB (OC 7200 MHz), 1x PCIe 4.0 M.2, 1GbE, USB 3.2 Gen1

**URL:** https://aio.lv/en/product--gigabyte-b840m-h--11678935
**Data updated:** 2026-01-23 13:50 (EET)
**Category:** Motherboards
**Manufacturer:** GIGABYTE
**Manufacturer code:** B840M H
**EAN:** 4719331877880
**Warranty:** 2 Years
**Availability:** Available for order
**Price:** 96.49 €
**Prices and availability valid until:** 2026-07-30 23:59
**Price without VAT (21%):** 79.74 EUR
**Can be purchased by legal entities:** Yes (invoice)
**Buy:** https://aio.lv/en/product--gigabyte-b840m-h--11678935

## Delivery options

| Delivery method | Delivery time | Cost |
|---|---|---|
| Office pickup (2b. Kengaraga str., Riga, Latvia, LV-1063) | 15.07.2026 | free |
| Pickup points | 20.07.2026 | 1.89 EUR |
| Courier delivery to door | 20.07.2026 | 4.99 EUR |

## Summary description

GIGABYTE B840M H is a Micro ATX motherboard for AMD Socket AM5 processors (supports Ryzen 7000/8000/9000 series). It uses AMD B840 chipset and a 5+2+2 phase VRM, supports up to 128 GB DDR5 memory (2 DIMM, OC up to 7200 MHz), one PCIe 4.0 M.2 slot, SATA III and PCIe storage, Realtek RTL8111H Gigabit LAN and USB 3.2 Gen1. Suitable for compact desktop builds, gaming and productivity with RAID 0/1/5/10 support.

## Long description

GIGABYTE B840M H is a Micro ATX motherboard for AMD Socket AM5 processors, built on the AMD B840 chipset. It supports AMD Ryzen 7000, 8000 and 9000 series CPUs, two DDR5 DIMMs up to 128 GB (OC up to 7200 MHz), one PCIe 4.0 x4 M.2 slot, SATA III and PCIe storage with RAID 0/1/5/10 support, and Gigabit Ethernet. The board includes a 5+2+2 phase digital VRM design and user-friendly BIOS/utility features such as multi-theme UI, AIO fan control and Q-Flash auto scan.
Advantages
The Micro ATX form factor offers a compact footprint suitable for smaller desktop builds while retaining key connectivity and expansion options. Support for DDR5 memory and a PCIe 4.0 M.2 slot provides fast system memory and storage performance. The digital 5+2+2 phase VRM improves power delivery stability for compatible AM5 processors. Built-in BIOS and software features simplify system tuning, fan control and firmware updates.
Suitable for
 Compact desktop and small-form-factor PC builds
 Entry to mid-level gaming systems using AMD Ryzen AM5 CPUs
 Home or office productivity and content creation on a compact motherboard
Key specifications
 Form factor: Micro ATX
 Chipset: AMD B840
 Processor socket: AMD Socket AM5 (supports Ryzen 7000/8000/9000 series)
 Memory: 2 × DDR5 DIMM slots, up to 128 GB (OC up to 7200 MHz)
 Storage: 1 × PCIe 4.0 x4 M.2 slot, SATA III ports, RAID 0/1/5/10 support
 Expansion: PCIe slots suitable for discrete graphics and add-in cards
 Audio: 7.1-channel onboard audio (Realtek codec)
 Networking: Gigabit Ethernet
 BIOS: UEFI AMI with Clear CMOS jumper
How to use
Install the motherboard into a compatible Micro ATX case and secure it to standoffs. Fit a compatible AM5 CPU and the recommended CPU cooler, insert up to two DDR5 memory modules following the motherboard manual for dual-channel population, and connect storage devices to the M.2 slot or SATA ports. Attach power connectors from a suitable PSU, connect front-panel connectors, fans and peripherals, and enter the UEFI BIOS to configure memory profiles (EXPO), boot order and fan curves. Use the provided GIGABYTE software or BIOS Q-Flash to update firmware if needed.
Usage recommendations
For stable performance, use high-quality DDR5 memory modules certified for AM5/EXPO and ensure adequate CPU cooling when overclocking. Keep the BIOS up to date and configure RAID arrays and storage settings in BIOS before installing the operating system.

## Specifications

### Features

| Feature | Value |
|---|---|
| Motherboard form factor | Micro ATX |
| Motherboard chipset | AMD B840 |
| Component for | PC |
| Audio output channels | 7.1 |
| Cooling type | Passive |
| PC health monitoring | FAN, Temperature, Voltage, Water cooling |
| Windows operating systems supported | Windows 10 x64, Windows 11 x64 |
| Motherboard chipset family | AMD |
| Power source type | ATX |

| Feature | Value |
|---|---|
| Product colour | Dark brown |

### Processor

| Feature | Value |
|---|---|
| Processor manufacturer | AMD |
| Processor socket | Socket AM5 |

### Memory

| Feature | Value |
|---|---|
| Number of memory slots | 2 |
| Maximum internal memory | 128 GB |
| Supported memory types | DDR5-SDRAM |
| Supported memory clock speeds | 7000, 6800, 6666, 6600, 6400, 6200, 6000, 5600, 5200, 4800, 4400 |
| Memory channels | Dual-channel |
| Unbuffered memory | Yes |
| Memory slots type | DIMM |
| Supported memory clock speed (max) | 7200 MHz |
| Maximum internal memory per slot | 64 GB |
| ECC сompatibility | non-ECC |

### Expansion slots

| Feature | Value |
|---|---|
| PCI Express x1 (Gen 3.x) slots | 1 |
| Number of M.2 (M) slots | 1 |
| PCI Express x16 (Gen 4.x) slots | 1 |
| 1st M.2 largest key size | 2580 |
| 1st M.2 highest PCI Express generation | 4.0 |

### Graphics

| Feature | Value |
|---|---|
| Maximum resolution | 4096 x 2160 |
| Parallel processing technology support | Not supported |
| DirectX version | 12.0 |
| HDCP | Yes |
| HDCP version | 2.3 |

### Network

| Feature | Value |
|---|---|
| Ethernet LAN | Yes |
| LAN controller | Realtek RTL8111H |
| Wi-Fi | No |
| Ethernet interface type | Gigabit Ethernet |

### Internal I/O

| Feature | Value |
|---|---|
| USB 2.0 connectors | 2 |
| CPU fan connector | Yes |
| ATX Power connector (24-pin) | Yes |
| Number of chassis fan connectors | 2 |
| Front panel audio connector | Yes |
| TPM 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 |
| Front panel connector | Yes |
| 12V power connector | Yes |
| RGB LED pin header | Yes |
| Number of RGB LED pin headers | 3 |
| Number of CPU fan connectors | 1 |
| Number of EPS power connectors (8-pin) | 1 |

### Rear panel I/O ports

| Feature | Value |
|---|---|
| PS/2 ports quantity | 1 |
| Line-in | Yes |
| USB 2.0 ports quantity | 4 |
| Ethernet LAN (RJ-45) ports | 1 |
| Headphone outputs | 1 |
| Microphone in | Yes |
| HDMI ports quantity | 1 |
| HDMI version | 2.1 |
| DisplayPorts quantity | 1 |
| USB 3.2 Gen 1 (3.1 Gen 1) Type-A ports quantity | 2 |

### Storage controllers

| Feature | Value |
|---|---|
| RAID levels | 1, 5, 10 |
| Supported storage drive types | HDD & SSD |
| RAID support | Yes |
| Number of storage drives supported | 5 |
| Supported storage drive interfaces | M.2, PCI Express 4.0, SATA III |

### Technical details

| Feature | Value |
|---|---|
| Warranty period | 3 year(s) |

### BIOS

| Feature | Value |
|---|---|
| BIOS memory size | 256 Mbit |
| BIOS type | UEFI AMI |
| ACPI version | 5.0 |
| Clear CMOS jumper | Yes |
| Desktop Management Interface (DMI) version | 2.7 |
| System Management BIOS (SMBIOS) version | 2.7 |
| BIOS flashback button | Yes |

### Weight & dimensions

| Feature | Value |
|---|---|
| Width | 230 mm |
| Depth | 225 mm |

### Other features

| Feature | Value |
|---|---|
| Number of HDDs supported | 4 |
| Supported processor sockets | Socket AM5 |
| Weight | 0.88 kg |
| Package weight | 941 g |
| Height | 35 mm |
| DisplayPort version | 1.4 |
| Audio chip | Realtek ALC897 |

### Packaging content

| Feature | Value |
|---|---|
| Bundled software | Norton® Internet Security (OEM version) |
| Batteries included | Yes |
| Screws included | Yes |

### Packaging data

| Feature | Value |
|---|---|
| Package depth | 265 mm |
| Package height | 54 mm |
| Package width | 265 mm |

### Battery

| Feature | Value |
|---|---|
| Battery technology | Lithium-Manganese Dioxide (LiMnO2) |
| Battery type | CR2032 |
| Number of battery cells | 1 |
| Battery weight | 3 g |
| Lithium weight per battery | 0.07 g |

### Logistics data

| Feature | Value |
|---|---|
| Products per shipping (inner) case | 1 pc(s) |

## FAQ

### How much does the GIGABYTE B840M H Micro ATX motherboard cost, and is it available for purchase?

The price is 96.49 € (valid at the time of publication and already includes all taxes). The item is available for order — 125 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 15.07.2026 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 GIGABYTE B840M H Micro ATX motherboard be purchased with a lease?

Yes, the purchase is available both on credit and with an interest-free installment plan. Learn more about installments and credit options: https://aio.lv/en/payment#b3

### 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 GIGABYTE 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 GIGABYTE 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. More information about warranty service: https://aio.lv/en/warranty

### 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 x1 (gen 3.x) slots, weight, 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.

## Image

https://aio.lv/img/cache/product/11678935/67014402_large.webp