This article covers RAIJINTEK 両サイドに3ミリ厚の強化ガラスを装備したアルミニウム製ATXマザー対応ミドルタワーケース 0R200053 (THETIS BLACK WINDOW).

Overview

The RAIJINTEK THETIS BLACK WINDOW (model 0R200053) is a compact ATX mini tower case that pairs an aluminum body with 3mm tempered glass panels on both sides. The anodized hairline finish gives the exterior a premium look while maintaining structural rigidity. At around ¥15,000, it offers an affordable entry point into all-aluminum construction without sacrificing the showcase appeal of dual glass panels.
This case uses a front-mounted PSU design and ships with a single 120mm LED fan at the rear. Despite its mini-tower footprint, it supports full-size ATX motherboards – a rare combination aimed at builders who want a small footprint without downgrading to Micro ATX. The THETIS sits in the entry-to-mid market segment, appealing to budget-conscious enthusiasts who prioritize aesthetics.

Compatibility Guide

The THETIS accepts ATX and Micro ATX motherboards. The front-mounted PSU bay means you'll need to check PSU depth before purchase – longer units may interfere with drive cages or cable routing. GPU length and CPU cooler height are not officially specified, so physical measurement or community feedback is advisable. The standard fan configuration is limited to one 120mm rear exhaust; top and front fan mounts are not clearly documented, so additional fans may not be feasible without modification.
Storage expansion is basic – expect support for 2.5" SSDs and possibly one 3.5" HDD, but exact bay count should be verified from product photos or user manuals. The aluminum construction dissipates heat passively, but the glass panels limit ventilation, so high-TDP components may require careful thermal management.

Product Info

The THETIS BLACK WINDOW has been available since around 2017 and remains sold through Japanese online retailers. The pricing hovers around ¥15,000, which is aggressive for a dual-tempered-glass aluminum case. The market positioning is squarely in the value segment: you get high-end looks without the high-end price tag. However, cooling potential is modest, and the case is not designed for liquid cooling radiators. Warranty information is not prominently listed, but RAIJINTEK generally offers standard manufacturer coverage through its distribution channels.

Best Use Cases

  • Budget gamer building a showpiece rig: If you're assembling a mid-range system (e.g., Ryzen 5 + RTX 4060) and want a clean aesthetic without spending on premium brands, the THETIS delivers. The glass panels let RGB components shine, but be prepared to limit GPU length.
  • Office or HTPC upgrade: The compact footprint fits under a desk or in an entertainment center. The aluminum body resists scratches better than steel, and the neutral silver/black finish blends with most decors.
  • First-time PC builder on a tight budget: The case is simple to work with (no complex radiator mounts, just standard fans). However, beginners should note that cable management is tighter than in larger towers.
  • Who should NOT buy: If you plan to install a high-TDP CPU/GPU, a 360mm AIO, or need extensive storage, look at a mid-tower with better airflow (e.g., Fractal Design Pop Air or Corsair 4000D).

Things to Consider

The THETIS's biggest limitation is airflow. The glass panels have no ventilation, and the single 120mm exhaust fan may struggle with components exceeding 150W TDP under sustained load. Adding an intake fan requires modifying the front panel – there is no pre-cut fan mount there. The lack of a dust filter could be an issue in dusty environments. Also, the front-panel I/O lineup is basic: likely two USB 3.0 and audio jacks, but confirm the exact ports before purchase.
Compared to modern cases like the Lian Li LANCOOL 205 or Cooler Master Q300L, the THETIS shows its age in terms of cable management and fan support. However, for pure style per dollar, it remains competitive.

FAQ

Q: Can I install a 240mm AIO liquid cooler?
A: Official specs do not list support for radiators. The top panel appears solid, and the front lacks mounting holes. Stick to air cooling.
Q: What is the maximum GPU length supported?
A: Unconfirmed, but based on case dimensions and internal layout, expect roughly 280–300mm. A standard dual-fan card like the RTX 4060 (approx. 250mm) should fit, but triple-fan cards may not.
Q: Does this case come with any fans besides the rear 120mm?
A: Only one rear 120mm LED fan is included. You'll need to purchase any additional fans separately.
Q: Can I mount a standard ATX power supply?
A: Yes, but it must be a front-mount type (the PSU mounts at the front of the case, not the bottom). Cable routing may be challenging if the PSU is longer than 160mm.

Product Disclosure (Amazon)

  • Manufacturer: RAIJINTEK
  • Seller: RAIJINTEK CO., LTD.
  • Fulfilled by: Amazon
  • ASIN: B01MSV7RU2
  • Note: This article covers a manufacturer-made product based on Amazon listing details.