FSP U691 Black ARGB TG ATX Ultra-Tower Case

FSP U691 Black ARGB TG ATX is a Full Tower case aimed at more serious builds with many components, good cooling, and room for future upgrades. You get a large chassis supporting ATX, Micro ATX, Mini ITX, and BTF motherboards, giving you the freedom to choose your platform. The side panel made of tempered glass gives you a clear view of the interior and ARGB components. This is a case that feels best in the role of a foundation for a powerful gaming or workstation build.

What you get

With a Full Tower form factor, you have enough volume for large GPUs, serious coolers, and clean cable management. Support for up to 4 x 120 mm or 3 x 140 mm fans in the front, plus up to 3 x 120 mm at the bottom and options for 120/140 mm fan at the back, means you can build a powerful airflow for cooling a loaded CPU and GPU. The case already includes 1 included fan, so you can start your build and gradually upgrade the cooling. With 1 x 3.5" and 4 x 2.5" slots, you can easily combine a large HDD for mass storage with several SSDs for a fast system and games. On the front panel, you have 2 x USB 3.0, 1 x USB-C, and HD Audio, so everyday devices and headphones are at hand without rummaging behind the case.

• Large form factor Full Tower, providing plenty of space for long graphics cards, high-end cooling, and neat cabling.
• Wide compatibility with motherboards – ATX, Micro ATX, Mini ITX, and BTF, allowing flexible platform choice and easy upgrades.
• Supported fans: at the back 1 x 120 mm or 1 x 140 mm, at the front up to 4 x 120 mm or 3 x 140 mm, at the bottom up to 3 x 120 mm for serious airflow.
• 1 included fan, with which you can start the system immediately and upgrade the cooling as needed.
• Side panel made of tempered glass, showcasing the components and ARGB effects, making the entire build visually neater.
• 9 expansion slots, suitable for multi-GPU configurations, large expansion cards, or massive coolers.
• Combination of 1 x 3.5" and 4 x 2.5" slots, allowing for both large capacity and fast SSDs for system and games.
• Convenient I/O with 2 x USB 3.0, 1 x USB-C, and HD Audio for modern peripherals and headphones directly on the case.

Who it is suitable for

This case is for you if you are planning a serious gaming or workstation build, with plenty of room for cooling, long graphics cards, and several drives. It is also suitable if you want to experiment with a cleaner BTF build and showcase your hardware through the glass panel. If you are aiming for a maximally compact or easily portable PC, this Full Tower will likely be too large for you.

The most sensible aspect of the FSP U691 is the combination of spacious Full Tower format, rich cooling options, and convenient I/O with USB-C, making it a solid base for a serious, long-term build.