# ZALMAN P40 Prism White — Pillarless ATX Mid-Tower PC Case with Panoramic Tempered Glass > The ZALMAN P40 Prism White is a pillarless ATX mid-tower case with tempered glass on three sides. Tags: case, zalman, p40-prism-white, atx, mid-tower, panoramic Source: https://www.amazon.co.jp/dp/B0DT31FMYS Article page: https://web-autoai.com/articles/zalman-p40-prism-white-pillarless-atx-mid-tower-pc-case?lang=en Prices and ratings change over time — check the article page for the current values. --- ## Overview The ZALMAN P40 Prism White is an ATX mid-tower PC case with a pillarless design, featuring tempered glass on the front, side, and top panels. Marketed under the model number P40 PRISM WHITE and the Japanese part number CS9179, it is an official domestic product with a one-year warranty. The unobstructed panoramic view lets you show off your PC internals from a wide angle, which is the case's biggest selling point. The white chassis pairs well with RGB lighting and water-cooling components. It supports radiators up to 360mm and includes a mesh side panel option, so you can maintain good airflow even with high-performance parts installed. A graphics card guide is included to prevent heavy GPUs from damaging the motherboard. Positioned as a mid-tier case that balances looks and cooling, the P40 Prism White offers the pillarless aesthetic at an accessible price point for entry-level to mid-range PC builders. ## Compatibility Guide This case supports ATX motherboards and is a mid-tower design. It works with standard ATX power supplies and most graphics cards, making it a flexible choice for typical builds. For vertical GPU mounting, the expansion slot area can be rotated 90 degrees. The included graphics card guide helps support the card's weight and reduces stress on the motherboard. On the cooling side, it supports radiators up to 360mm, so you can install large AIO coolers at the top or front. The mesh side panel is useful for airflow-focused air-cooling setups. Cable management is aided by a 33mm space behind the motherboard tray, which helps keep wiring tidy even for first-time builders. ## Product Info The P40 Prism White was released on January 31, 2025, and is sold as an official domestic product with a one-year warranty. Its dimensions are approximately 452 mm in length, 235 mm in width, and 495 mm in height, with a weight of about 8.5 kg. Priced in the low 10,000-yen range, it offers strong value for a case with a pillarless design and three tempered glass panels. It sits in the entry-to-mid tier, appealing to builders who want a striking look without spending a fortune. ## Best Use Cases - First-time builders who want to show off their components: the pillarless design and three glass panels make RGB builds shine, and the 33mm cable management space helps keep things neat. Not ideal for those who prefer a compact or minimalist case. - Gamers building a high-performance water-cooled rig: support for 360mm radiators and the optional mesh side panel ensure adequate cooling. However, if you need a small footprint, this mid-tower may be too large. - Enthusiasts who want to vertically mount their graphics card: the rotatable expansion slot allows vertical GPU installation, and the included guide prevents sagging. This feature is less useful if you plan to keep the GPU horizontal. ## Things to Consider With three tempered glass panels, this case is heavier than typical mesh cases, which may make it less convenient for frequent transport or component swaps. The pillarless design looks great but can restrict front airflow. If cooling is your top priority, consider using the mesh side panel or additional fans. Before purchasing, verify that your CPU cooler and graphics card fit within the case's dimensions. The case measures approximately 452 x 235 x 495 mm, so also check your desk or floor space. ## FAQ Q: Does this case support motherboards other than ATX? A: The P40 Prism White is an ATX mid-tower case, so it is designed for ATX motherboards. For other form factors, please check the official compatibility information. Q: Where can I install a 360mm radiator? A: The case supports radiators up to 360mm, typically at the top or front. However, component clearance may vary, so measure your parts before installation. Q: Is vertical GPU mounting easy? A: Yes, you can rotate the expansion slot area 90 degrees to mount the GPU vertically. The included graphics card guide helps support the card's weight and prevents motherboard damage. ### Product Disclosure (Amazon) - Manufacturer: ZALMAN - Model: P40 PRISM WHITE - ASIN: B0DT31FMYS - Note: This article covers a manufacturer-made product based on Amazon listing details.