This article covers JONSBO N3 Mini-ITX NAS PCシャーシ ITX コンピューターケース 8HHD+1-SSDD isk Bays NAS Mini アルミニウム スチールプレートケース付き 2x10cmファン内蔵 電源サポート.

Overview

The JONSBO N3 is a Mini-ITX NAS PC case designed for high-density storage. It features eight 3.5-inch HDD bays plus one 2.5-inch SSD bay, making it an ideal solution for home offices, enterprise storage, and media servers. Constructed from an aluminum exterior with a steel inner frame, the N3 measures just 233mm wide, 262mm deep, and 298mm tall, fitting comfortably on a desk or in a small server rack. The case comes with a server-grade hot-swap backplane supporting dual D-type power plugs and SATA power, ensuring reliable connectivity for all eight HDDs. The HDD compartment is actively cooled by two pre-installed 100mm fans, delivering efficient airflow directly over the drives. Front I/O includes USB 3.0, USB 3.2 Gen 2 Type-C, and a combined audio/mic port.

Compatibility Guide

Motherboard support is limited to Mini-ITX form factor. The case provides two PCI expansion slots, allowing installation of a graphics card up to 280mm in length (though rarely needed for NAS use). CPU cooler height is restricted to 130mm, so low-profile air coolers or compact liquid cooling solutions are required. Power supply must be an SFX unit with a maximum length of 105mm – standard ATX PSUs will not fit. For drives, all eight 3.5" bays connect via the included SATA backplane. An additional 2.5" drive mounts internally. The case does not support M.2 NVMe drives natively, but the motherboard can accommodate them.

Product Info

Released in late 2023, the JONSBO N3 is positioned as a mid-to-high-end mini-tower NAS case. It replaces earlier N2/N1 models with increased drive capacity and improved thermal design. The build quality is excellent, featuring a brushed aluminum front panel and a sturdy steel chassis. The backplane supports hot-swapping, which is a premium feature at this price point.

Best Use Cases

Home NAS Builders: Perfect for creating a high-capacity file server, media center (Plex, Emby), or backup target. The 8+1 drive layout allows for RAID configurations with plenty of storage headroom. Small Office/Home Office (SOHO): Ideal as a centralized storage solution for multiple users. Its compact footprint saves desk space while delivering enterprise-grade drive mounting and cooling. Enthusiast DIY NAS: For those who want full control over their NAS software (TrueNAS, Unraid, etc.) and hardware. The case offers easy drive access and good airflow, making it a pleasure to work with.

Things to Consider

The most critical limitation is the power supply requirement: only SFX units up to 105mm length are supported. This restricts your PSU choices, especially if you need high wattage for many drives and a discrete GPU. Plan for a quality SFX PSU (at least 500W) designed for continuous operation. CPU cooler height is limited to 130mm, which eliminates most tower coolers. However, for a typical NAS build (low-power CPU, no overclocking), a compact cooler is sufficient. Also, GPU length is capped at 280mm, so high-end gaming cards are out of the question unless you forgo some drive bays or use a shorter card. Finally, the case is specifically designed for NAS use; it is not well-suited for general-purpose gaming builds. If you need a versatile Mini-ITX case for both gaming and storage, consider something like the Cooler Master NR200 or Fractal Design Node 304 instead. But for pure storage density, the N3 is hard to beat.

Product Disclosure (Amazon)

  • Manufacturer: JONSBO
  • Seller: KASUAYA本店
  • Fulfilled by: KASUAYA本店
  • ASIN: B0CMVBMVHT
  • Note: This article covers a manufacturer-made product based on Amazon listing details.