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ASRock 4U18N-B550/2T Barebone System - 4U Rackmount Chassis - Socket AM4 - Up to 32GB DDR4 - 10GbE - 4 Power Supplies
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Product Features
Technical Overview
This barebone system features comprehensive connectivity and expansion capabilities tailored for server deployment. The 10 Gigabit Ethernet interface delivers high-speed network throughput essential for data-intensive environments, while the Serial ATA/600 controller provides reliable storage connectivity for hard drives and SSDs.
The system includes two USB 3.2 Gen 1 ports for peripheral connectivity and a VGA port for basic display output, supported by the integrated AST2500 graphics controller with 16MB of shared DDR4 memory. Four installed power supplies with 1.60kW maximum capacity ensure redundant power delivery for mission-critical applications.
Relevant factors for this section include Processor Socket, Processor Supported, 64-bit Processing, Chipset Manufacturer. When those points are considered together, they give buyers a clearer picture of how the product is equipped, how it fits into deployment, and what kind of day-to-day role it is meant to support.
Key Product Advantages
The ASRock 4U18N-B550/2T offers several distinct advantages for organizations building custom server solutions. The 4U rackmount form factor provides ample internal space for component installation while maintaining standard rack compatibility, and the quad power supply configuration delivers essential redundancy for uninterrupted operation.
Processor Flexibility
Socket AM4 support accommodates Ryzen processors from entry-level to high-performance models, allowing organizations to match processing power to specific workload requirements while maintaining platform consistency.
- Supports Ryzen 9, 7, 5, and 3 series
- Includes PRO variants for business environments
- 64-bit architecture for modern applications
Memory Scalability
Four DDR4 memory slots with support for up to 32GB provide substantial memory capacity for virtualization, database applications, and memory-intensive workloads, with DDR4-3200 speed ensuring responsive system performance.
- Four DIMM slots for flexible configuration
- DDR4-3200 memory standard
- Maximum 32GB capacity
Enterprise Connectivity
10 Gigabit Ethernet delivers the network bandwidth required for modern data center environments, while multiple expansion bays and interfaces support storage and peripheral integration in server deployments.
- 10GbE for high-speed networking
- Two expansion bays for storage
- USB 3.2 Gen 1 for peripheral connectivity
Deployment / Use Cases
This barebone system serves as an ideal foundation for various server applications in business and data center environments. The flexible processor support and memory configuration make it suitable for virtualization hosts, where multiple virtual machines require substantial compute resources and memory allocation.
The 10 Gigabit Ethernet connectivity and storage expansion capabilities position this system well for network-attached storage solutions, file servers, and application hosting. The rackmount design and redundant power supplies make it particularly valuable for data center deployments where reliability, density, and serviceability are critical considerations.
Relevant factors for this section include Processor Socket, Processor Supported, 64-bit Processing, Chipset Manufacturer. When those points are considered together, they give buyers a clearer picture of how the product is equipped, how it fits into deployment, and what kind of day-to-day role it is meant to support.
Physical Profile
The 4U rackmount chassis measures 6.93" (176 mm) in height, 17.24" (438 mm) in width, and 37.40" (950 mm) in depth, providing substantial internal space for component installation while maintaining standard 19-inch rack compatibility. The rack-mountable form factor with 4U height ensures proper airflow and cooling for sustained server operation in data center environments.
- Width
- 17.24" (438 mm)
- Depth
- 37.40" (950 mm)
- Height
- 4U
Highlights
- 4U rackmount chassis for standard server rack deployment
- Socket AM4 support for Ryzen 9, 7, 5, and 3 processors
- Up to 32GB DDR4-3200 memory across four DIMM slots
- AMD B550 chipset with 64-bit processing architecture
- 10 Gigabit Ethernet for high-speed network connectivity
- Serial ATA/600 controller for reliable storage performance
- Four installed power supplies with 1.60kW maximum capacity
- Two USB 3.2 Gen 1 ports and VGA display output
- Two expansion bays for storage device installation
- AST2500 graphics controller with shared DDR4 memory
Specifications
| Specifications | |
|---|---|
| Manufacturer | ASRock, Inc |
| Manufacturer Part Number | 4U18N-B550/2T |
| Brand Name | ASRock |
| Product Model | 4U18N-B550/2T |
| Product Name | 4U18N-B550/2T Barebone System |
| Product Type | Barebone System |
| Processor | |
| Processor Socket | Socket AM4 |
| Processor Supported | Ryzen 9,Ryzen 7,Ryzen 5,Ryzen 3,Ryzen 7 PRO,Ryzen 5 Pro,Ryzen 3 PRO |
| 64-bit Processing | Yes |
| Chipset | |
| Chipset Manufacturer | AMD |
| Chipset Model | B550 |
| Memory | |
| Maximum Memory Supported | 32 GB |
| Memory Technology | DDR4 SDRAM |
| Memory Standard | DDR4-3200/PC4-25600 |
| Total Number of Memory Slots | 4 |
| Controllers | |
| Controller Type | Serial ATA/600 |
| Display & Graphics | |
| Graphics Controller Model | AST2500 |
| Graphics Memory Capacity | 16 MB |
| Graphics Memory Technology | DDR4 SDRAM |
| Graphics Memory Accessibility | Shared |
| Network & Communication | |
| Ethernet Technology | 10 Gigabit Ethernet |
| I/O Expansions | |
| Number of Total Expansion Bays | 2 |
| Interfaces/Ports | |
| Total Number of USB Ports | 2 |
| Number of USB 3.2 Gen 1 Ports | 2 |
| Number of VGA Ports | 1 |
| Power Description | |
| Input Voltage | 120 V AC,230 V AC |
| Number of Power Supplies Installed | 4 |
| Maximum Power Supply Wattage | 1.60 kW |
| Physical Characteristics | |
| Form Factor | Rack-mountable |
| Rack Height | 4U |
| Height | 6.93" (176 mm) |
| Width | 17.24" (438 mm) |
| Depth | 37.40" (950 mm) |
User Manual
FAQ
What processors are compatible with this barebone system?
The ASRock 4U18N-B550/2T supports Socket AM4 processors, including Ryzen 9, Ryzen 7, Ryzen 5, and Ryzen 3 series processors, along with their PRO variants (Ryzen 7 PRO, Ryzen 5 Pro, Ryzen 3 PRO). This compatibility provides flexibility to match processing power to specific server workload requirements, from entry-level to high-performance computing tasks.
How much memory can this system support?
This barebone system supports up to 32GB of DDR4 SDRAM memory across four DIMM slots. The memory operates at DDR4-3200/PC4-25600 speed, providing responsive performance for memory-intensive server applications, virtualization environments, and multi-threaded workloads that benefit from substantial memory capacity.
What networking capabilities does this system offer?
The system features 10 Gigabit Ethernet connectivity, delivering high-speed network throughput essential for data-intensive server environments, virtualization hosts, and storage solutions. This networking capability ensures rapid data transfer between servers and network infrastructure in enterprise and data center deployments.
How many power supplies are included?
The ASRock 4U18N-B550/2T includes four installed power supplies with a maximum power supply wattage of 1.60kW. This quad power supply configuration provides redundancy for mission-critical applications, ensuring continuous operation even if one power supply fails, and supports input voltages of 120V AC and 230V AC for flexible power source compatibility.
What storage expansion options are available?
The system includes two total expansion bays for storage device installation and features a Serial ATA/600 controller for reliable storage connectivity. This configuration supports the installation of hard drives or SSDs for operating system storage, application data, or network-attached storage solutions, with the SATA/600 interface providing high-speed data transfer capabilities.
What are the physical dimensions of this rackmount chassis?
The 4U rackmount chassis measures 6.93 inches (176 mm) in height, 17.24 inches (438 mm) in width, and 37.40 inches (950 mm) in depth. These dimensions provide substantial internal space for component installation while maintaining compatibility with standard 19-inch server racks, with the 4U height ensuring proper airflow and cooling for sustained server operation.
| Qty | Price | Available |
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