# Motherboard ASRock EPYC4000D4U KNOLL3 X300 Micro ATX Socket AM5 DDR5 4 DIMM 48GB SATA III Gigabit LAN

**URL:** https://aio.lv/en/product--asrock-epyc4000d4u--11513059
**Data updated:** 2026-01-21 12:08 (EET)
**Category:** Motherboards
**Manufacturer:** ASROCK
**Manufacturer code:** EPYC4000D4U
**Warranty:** 2 Years
**Availability:** Available for order
**Price:** 386.49 €
**Prices and availability valid until:** 2026-07-23 23:59
**Price without VAT (21%):** 319.41 EUR
**Can be purchased by legal entities:** Yes (invoice)
**Buy:** https://aio.lv/en/product--asrock-epyc4000d4u--11513059

## Delivery options

| Delivery method | Delivery time | Cost |
|---|---|---|
| Office pickup (2b. Kengaraga str., Riga, Latvia, LV-1063) | 09.07.2026 | free |
| Pickup points | 14.07.2026 | 1.89 EUR |
| Courier delivery to door | 14.07.2026 | 4.99 EUR |

## Summary description

Server motherboard ASRock EPYC4000D4U with KNOLL3 X300 chipset in Micro ATX format. Supports a single AMD EPYC 4004 series processor on Socket AM5, four DDR5 DIMM slots up to 48 GB (3600 MHz, ECC & Non‑ECC), two SATA III ports, Intel I210 Gigabit LAN, IPMI LAN (RJ‑45), onboard AST2600 graphics, multiple display outputs and one PCIe x16 Gen5 slot. Designed for compact server builds and workstation use with UEFI AMI BIOS and TPM connector.

## Long description

ASRock EPYC4000D4U (KNOLL3 X300) is a Micro-ATX server motherboard with Socket AM5 designed for AMD EPYC 4004/4005 and AMD Ryzen 7000/8000/9000 series processors. It accepts an ATX power supply or 12V DC-in and provides four DDR5 DIMM slots with support for ECC and non-ECC UDIMM modules up to a total of 48 GB. The board includes dual Gigabit Ethernet ports, integrated ASPEED AST2600 graphics/controller, remote management via IPMI, and multiple expansion and storage interfaces suitable for compact server or workstation builds.
Advantages
The micro-ATX form factor balances compact size and expandability, offering a PCIe 5.0 x16 slot and additional MCIO expansion options for high-speed devices. Dual LAN ports driven by Intel i210 provide reliable Gigabit connectivity while onboard IPMI (ASPEED AST2600) enables remote management and monitoring. DDR5 memory support with four DIMM slots allows for error-correcting ECC configurations on compatible modules, and two M.2 plus SATA III interfaces deliver flexible storage choices for both NVMe and SATA drives.
Suitable for
Compact rack or tower servers
Edge and industrial computing applications
Remote-managed appliances and network appliances
Small workstations requiring PCIe 5.0 expansion
Key specifications
Form factor: Micro-ATX (9.6" x 9.6")
Chipset: KNOLL3 X300
Processor socket: Socket AM5; compatible with AMD EPYC 4004/4005 and AMD Ryzen 7000/8000/9000 series
Memory: 4 DIMM slots (2DPC); DDR5 ECC/non-ECC UDIMM; maximum internal memory 48 GB
Expansion: 1 × PCIe 5.0 x16; MCIO slots supporting PCIe5.0 (x8 and dual x4 configurations)
Storage: 2 × M.2 (PCIe5.0 x4 capable) and 2 × SATA III (6 Gb/s)
LAN: 2 × RJ45 Gigabit Ethernet (Intel i210)
Video/Management: 1 × HDMI, 1 × DisplayPort; ASPEED AST2600 with IPMI remote management
BIOS: UEFI AMI (256 Mbit); ACPI version 6.4
How to use
Install the motherboard into a compatible Micro-ATX chassis and connect either a standard ATX power supply or a 12V DC input according to the board's power connector specification. Fit a supported Socket AM5 CPU and populate DDR5 UDIMM memory modules across the four DIMM slots following the motherboard manual for optimal dual-channel/2DPC population. Connect storage devices to the M.2 slots or SATA III ports and install any PCIe cards into the provided PCIe 5.0/MCIO slots. Configure network, storage, and firmware settings via UEFI BIOS and use IPMI for remote monitoring and management if required.
Usage recommendations
Use server-grade ECC DDR5 modules when fault tolerance is required; ensure BIOS is updated to the latest version before deploying in production. For stable network performance, use quality cables and configure the Intel i210 interfaces in the OS or management firmware as needed.

## Specifications

### Features

| Feature | Value |
|---|---|
| Motherboard form factor | Micro ATX |
| Motherboard chipset | KNOLL3 X300 |
| Component for | Server |
| Motherboard chipset family | AMD |

### Processor

| Feature | Value |
|---|---|
| Processor manufacturer | AMD |
| Maximum number of SMP processors | 1 |
| Processor socket | Socket AM5 |

### Memory

| Feature | Value |
|---|---|
| Number of memory slots | 4 |
| Maximum internal memory | 48 GB |
| Supported memory types | DDR5-SDRAM |
| Supported memory clock speeds | 3600, 5600 |
| Memory voltage | 1.1 |
| Memory slots type | DIMM |
| Memory slot pin count | 288 |
| ECC сompatibility | ECC & non-ECC |

### Expansion slots

| Feature | Value |
|---|---|
| PCI Express x16 (Gen 5.x) slots | 1 |

### Graphics

| Feature | Value |
|---|---|
| Graphics card | AST2600 |
| Graphics card family | Aspeed |
| On-board graphics card | Yes |

### Network

| Feature | Value |
|---|---|
| Ethernet LAN | Yes |
| LAN controller | Intel I210 |
| Wi-Fi | No |
| Ethernet interface type | Gigabit Ethernet |

### Internal I/O

| Feature | Value |
|---|---|
| ATX Power connector (24-pin) | Yes |
| TPM connector | Yes |
| Number of SATA III connectors | 2 |

### Rear panel I/O ports

| Feature | Value |
|---|---|
| Serial ports quantity | 1 |
| Ethernet LAN (RJ-45) ports | 2 |
| VGA (D-Sub) ports quantity | 1 |
| HDMI ports quantity | 1 |
| DisplayPorts quantity | 1 |
| IPMI LAN (RJ-45) port | Yes |
| USB 3.2 Gen 1 (3.1 Gen 1) Type-A ports quantity | 2 |

### Storage controllers

| Feature | Value |
|---|---|
| Supported storage drive interfaces | SATA III |

### BIOS

| Feature | Value |
|---|---|
| BIOS memory size | 256 Mbit |
| BIOS type | UEFI AMI |

### Weight & dimensions

| Feature | Value |
|---|---|
| Width | 244 mm |
| Depth | 244 mm |

### Operational conditions

| Feature | Value |
|---|---|
| Operating relative humidity (H-H) | 20 - 90 |
| Storage temperature (T-T) | -40 - 70 |
| Operating temperature (T-T) | 10 - 35 |

## FAQ

### How much does the ASRock EPYC4000D4U KNOLL3 X300 Micro ATX motherboard cost, and is it available for purchase?

The price is 386.49 € (valid at the time of publication and already includes all taxes). The item is available for order — 22 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 09.07.2026 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 ASRock EPYC4000D4U KNOLL3 X300 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 ASROCK 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 ASROCK 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, 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/11513059/66986714_large.webp