This article covers SilverStone Fortressシリーズ Mini-ITXケース ブラック SST-FTZ01B-E.

Overview

The SilverStone Fortress FTZ01B-E is a premium Mini-ITX case crafted from an aluminum unibody frame. Despite its slim footprint, it accommodates a standard ATX power supply and graphics cards up to 330mm (13 inches) long—uncommon for such a compact chassis. It supports both horizontal and vertical orientation, making it versatile for living room or desk setups. The positive-pressure air cooling design also effectively keeps dust out while maintaining quiet operation. This case is designed for enthusiasts who want a high-performance small-form-factor (SFF) build without the usual trade-offs. With ATX PSU compatibility and room for flagship GPUs, users can select their favorite components without being forced into expensive SFX power supplies or limited GPU choices. AIO liquid cooling support further extends the thermal headroom.

Compatibility Guide

  • Motherboard: Mini-ITX only (no Micro-ATX or ATX). - Power Supply: ATX (PS/2) standard; no SFX adapter needed. - Graphics Card: Up to 330mm in length (most high-end cards fit, including RTX 4090). - Storage: 2x 3.5-inch + 2x 2.5-inch bays. Note that using 3.5-inch drives may restrict PSU cable routing. - Cooling: Supports AIO liquid coolers up to 240mm radiator (check thickness and fan compatibility). Comes with two 120mm front fans. - Layout: Can be placed horizontally or vertically; vertical orientation requires optional feet (included).

Product Info

The FTZ01B-E positions itself as a high-end SFF case from SilverStone, distinguished by its precision-machined aluminum frame. It weighs 4.44 kg—heavier than typical steel cases—reflecting its premium build. The case supports positive-pressure airflow and includes dust filters. Available in black only. Price lands around ¥25,000–¥30,000, placing it in the premium segment of Mini-ITX cases.

Best Use Cases

  • Home theater / living room PC: The low-profile horizontal orientation fits perfectly into an AV rack. Despite the slim design, it can house a powerful GPU for 4K gaming or video playback. - Compact desk gaming rig: Vertical placement saves desk space. The ATX PSU support means you can use a high-wattage unit (e.g., 850W) without downgrading to SFX, which simplifies cable management. - Enthusiast SFF build: For builders who value aesthetics and quality, the all-aluminum chassis provides a tactile and visual experience that plastic or steel cases cannot match. ## Alternatives
    In the same price bracket, the Fractal Design Node 202 is slimmer but only supports SFX PSUs and GPUs up to 300mm. The Cooler Master NR200 offers similar flexibility with better cooling potential but is made of steel and lacks the aluminum premium feel. The FTZ01B-E is the clear choice if you prioritize premium materials, ATX PSU compatibility, and the ability to install the longest GPUs.

Things to Consider

The FTZ01B-E lacks a front USB-C port, which may be a dealbreaker for modern motherboards with USB-C front-panel headers. Additionally, its depth can be an issue when placed horizontally in shallow shelves—always measure your space. The case is not completely silent; under heavy load, fan and GPU noise are audible. The aluminum surface is prone to scratches, so handle with care. Finally, at around ¥25,000, it is expensive for a Mini-ITX case; if budget is tight, a steel alternative like the NR200 may offer better value for money.

Product Disclosure (Amazon)

  • Manufacturer: Silver Stone
  • Brand: SilverStone
  • Seller: Amazon.co.jp
  • Fulfilled by: Amazon.co.jp
  • ASIN: B076Y9CVQ4
  • Note: This article covers a manufacturer-made product based on Amazon listing details.