Asustor AS5402T 2-Bay NAS - NVMe, Dual 2.5GbE Performance

Our review of the Asustor AS5402T finds it best suited for home power users, small offices, and streamers who need strong local performance and easy media streaming. The single biggest reason to consider this NAS is its combination of a Quad-Core Intel Celeron N5105 and four M.2 NVMe slots, which deliver noticeably faster responsiveness and Plex-friendly media access than typical two-bay enclosures. Setup is straightforward and the hardware feels well built, making it an attractive option for those who want a compact, high-speed network storage device without added drives.

Key Features

• CPU: The Quad-Core Intel Celeron N5105 provides efficient multi-threaded handling for file services and light virtualization, keeping media transcodes and background tasks responsive.
• NVMe caching/expansion: Four M.2 NVMe slots allow very fast cache tiers or direct NVMe pools, reducing latency and speeding up access for frequently used files and databases.
• Memory: 4 GB of DDR4-2933 RAM supports smooth multitasking and gives the system room to run apps such as file indexing and media servers without immediate upgrades.
• Networking: Dual 2.5-Gigabit Ethernet ports increase throughput for backups and streaming when paired with compatible switches or link aggregation.
• Connectivity: Three USB 3.2 Gen 2 ports at 10 Gbps provide fast external backup and direct-attached storage options for large transfers and mobile workflows.
• Cooling: Aesthetic M.2 SSD heat dissipation vents help maintain drive temperatures during sustained loads for reliable NVMe operation.

Who It's For

The AS5402T is ideal for users who want a compact NAS that can handle media server duties, local backups, and multiple simultaneous streams; gamers and streamers will appreciate the low-latency NVMe support and the dual 2.5GbE ports for improved throughput. It also fits small businesses that need a reliable, easy-to-configure unit with solid hardware quality and decent expansion potential.

Users who need enterprise-class redundancy, very large drive bay counts, or mission-critical clustering should look elsewhere; the unit is diskless and oriented toward performance-per-bay rather than high-density storage arrays. Also, those requiring preinstalled storage will need to factor in drive purchases.

Pros & Cons

Pros

• Fast local performance thanks to the Intel N5105 and four NVMe slots for caching or pools.
• Good value hardware with 4 GB DDR4, multiple high-speed USB ports, and dual 2.5GbE for improved network speeds.
• Easy to set up and install M.2 drives, with solid hardware quality noted by users.

Cons

• Ships diskless, so total cost rises after adding NVMe or HDD/SSD storage.
• Some users report mixed impressions about advanced functionality and long-term stability under heavy enterprise workloads.

Specifications

Our Verdict

The Asustor AS5402T is a smart buy for home power users and small offices who want strong local throughput, fast NVMe-backed storage options, and easy media streaming. It balances performance and value for those willing to add their own drives, though enterprises needing large-scale redundancy or prepopulated storage should consider larger enclosures.

Frequently Asked Questions

Does this NAS include drives?
No, the AS5402T ships diskless; buyers must install 2.5in/3.5in drives and any NVMe SSDs they plan to use.

Can it run Plex and transcode media?
Yes, the Quad-Core Intel Celeron N5105 and available RAM handle Plex well for most home and small-office streaming tasks, especially with NVMe caching.

What network speeds can it achieve?
With dual 2.5GbE ports it supports higher-than-gigabit throughput and can use link aggregation or separate network paths for improved performance.