Asustor Lockerstor 4RD 4-Bay 1U Rackmount NAS Enclosure with Redundant Power

Overview

The Asustor AS6504RD is a 4-bay 1U rackmount NAS enclosure designed to deliver reliable and high-performance shared storage in a compact rack unit. It supports up to 72 TB of raw storage capacity with hot-swappable SATA bays compatible with both 3.5-inch and 2.5-inch drives. Powered by a 2.1 GHz quad-core Intel Atom processor and 8 GB of DDR4 memory (expandable to 128 GB), it handles demanding workloads such as virtualization and containerized applications with ease. Dual 2.5 GbE and 1 GbE network ports enable fast data transfer speeds up to 5 Gb/s through link aggregation, making it suitable for small to medium-sized businesses and IT environments that require scalable and resilient storage solutions.

Key features

• Four hot-swappable drive bays that support both 3.5-inch and 2.5-inch SATA drives, allowing flexible storage expansion.
• Dual redundant 250 W power supplies ensure continuous operation even if one power source fails, enhancing system reliability.
• Two 2.5 GbE and two 1 GbE network ports with link aggregation provide up to 5 Gb/s data throughput for efficient multi-user access.
• Intel Atom C3538 quad-core CPU combined with 8 GB DDR4 RAM, upgradeable to 128 GB, supports virtualization and intensive applications.
• PCIe slot available for adding a 10 GbE network card to increase network speed when needed.
• Hardware AES-256 encryption, multiple RAID configurations (0, 1, 5, 6, 10), and up to 256 snapshots per volume protect data integrity and prevent loss.
• “Find Me” button activates a rear light and buzzer, simplifying device location in crowded rack environments.
• Supports virtualization platforms like VMware, Hyper-V, Citrix, and Docker, along with hundreds of ADM apps for versatile use cases.
• Compatible with Windows, macOS, Linux, and mobile devices through EZ-Connect, enabling flexible and secure access across platforms.

Key specs

• Processor: Intel Atom C3538 quad-core 2.1 GHz
• Memory: 8 GB DDR4, expandable up to 128 GB
• Drive bays: 4 hot-swappable SATA bays (3.5-inch and 2.5-inch)
• Maximum raw storage capacity: 72 TB (expandable with additional units)
• Network ports: 2 x 2.5 GbE, 2 x 1 GbE with link aggregation support
• Power supplies: Dual redundant 250 W units
• RAID support: 0, 1, 5, 6, 10
• Snapshots: Up to 256 per volume
• Encryption: Hardware AES-256
• Expansion slot: 1 PCIe for 10 GbE network card
• Dimensions: 1U rackmount form factor

Connectivity and compatibility

The AS6504RD offers versatile connectivity options to fit into various network environments. Its combination of two 2.5 GbE and two 1 GbE ports supports link aggregation, allowing multiple users or workstations to access data simultaneously without bottlenecks. The PCIe slot provides future-proofing by enabling the addition of a 10 GbE network card for higher bandwidth needs. Compatibility with Windows, macOS, Linux, and mobile devices through EZ-Connect ensures seamless integration into mixed operating system environments, making it a flexible choice for diverse IT setups.

Performance and reliability

Designed for demanding workloads, this NAS features a quad-core Intel Atom processor and expandable DDR4 memory to handle virtualization, Docker containers, and multiple simultaneous tasks efficiently. Redundant power supplies guarantee uptime by preventing interruptions during power failures. Data protection is enhanced through hardware AES-256 encryption, comprehensive RAID options, and snapshot capabilities that safeguard against drive failures and accidental data changes. These features combine to provide a dependable storage solution that maintains performance and security in professional settings.

Installation and setup

Setting up the AS6504RD is straightforward with its 1U rackmount design that fits neatly into standard server racks. The hot-swappable drive bays simplify drive installation and replacement without downtime. The front panel “Find Me” button helps quickly identify the device in dense rack environments by activating a rear light and buzzer. The ADM operating system offers an intuitive interface with support for Time Machine backups, iSCSI targets, cloud synchronization, and Let’s Encrypt certificates, making management accessible even for users new to NAS systems.

Ideal uses and environments

This NAS is well suited to small and medium-sized businesses, IT departments, and professional environments that require compact yet expandable storage with strong data protection. It fits well in server rooms or data centers where rack space is limited but performance and reliability cannot be compromised. Its virtualization support and network speed options make it a strong choice for teams running multiple applications, hosting virtual machines, or managing shared files across diverse platforms.

What’s included

• Asustor AS6504RD 4-bay 1U rackmount NAS enclosure
• Two Cat 5e network cables
• Two power cords
• Mounting screws compatible with 3.5-inch and 2.5-inch drives