This article covers LIANLI 3面メッシュパネル 3.5インチHDD4基搭載可能 E-ATX.

Overview

The LIAN LI O11 AIR MINI in White is a compact mini-tower PC case that combines excellent airflow with surprising expandability. Its three-sided mesh panel design (front, top, and rear) ensures efficient heat dissipation, making it a strong contender for high-performance builds. The white aluminum and steel chassis gives it a clean, modern look that fits well in both gaming setups and professional workstations. The standout feature is the modular back panel: users can choose between a 5-slot or 7-slot I/O configuration. This allows the case to accommodate motherboards from Mini-ITX all the way up to E-ATX (277mm wide), while still keeping the overall footprint small. With support for CPU coolers up to 170mm tall and graphics cards up to 362mm long (in 5-slot mode), it handles nearly any mainstream component without compromise. Storage capacity is also impressive for a case this size: up to four 3.5-inch HDDs and two 2.5-inch SSDs can be installed simultaneously. This makes the O11 AIR MINI a viable option for users who need a compact home server or a workstation with multiple drives. The bottom-mounted ATX power supply and room for dual radiators (280mm front + 240mm top) round out its versatile feature set.

Compatibility Guide

Motherboard form factors: Mini-ITX, Micro-ATX, ATX, and E-ATX (up to 277mm width). Note that E-ATX requires the 7-slot back panel mode; 5-slot mode is limited to ATX and smaller. Graphics card length: 362mm maximum in 5-slot mode, 320mm in 7-slot mode. Virtually all modern GPUs fit, including RTX 4090 models (check length). CPU cooler height: 170mm maximum. Most large air coolers (Noctua NH-D15, be quiet! Dark Rock Pro 4) fit. Power supply: Standard ATX PSU (up to 220mm depth) mounts at the bottom. Cable management space is about 30mm. Fan support: Front 2x 140mm, Rear 1x 120mm, Top 2x 120/140mm, Bottom 2x 120mm (5-slot mode only). Radiator support: Front 280mm, Top 240mm, Rear 120mm. * Storage: 4x 3.5-inch HDD (tool-less trays), 2x 2.5-inch SSD (behind motherboard tray).

Product Info

The LIAN LI O11 AIR MINI launched in late 2021 and sits in the mid-to-high-tier segment of compact PC cases. Its retail price ranges from approximately $100 to $130 USD depending on region and promotions. The case is built from a combination of aluminum and steel, with a white powder-coated finish. It comes with a 1-year manufacturer warranty (through official distributors). Front I/O provides two USB 3.0 Type-A ports, one USB-C 3.1 Gen2 port, and a combined audio jack. Market positioning: This case is aimed at enthusiasts who want a small footprint without sacrificing the ability to install high-end hardware and multiple storage drives. It competes with cases like the Fractal Design Meshify 2 Mini and the Cooler Master MasterBox NR200P, but offers more flexible motherboard support (E-ATX) and storage capacity.

Best Use Cases

Compact Gaming Build: With space for a 360mm GPU (5-slot mode) and a 170mm CPU cooler, you can build a powerful gaming rig with an RTX 4080 or 4090 and a high-end air cooler. The mesh panels keep temperatures in check even during long gaming sessions. Not ideal for those who want to use a 360mm AIO radiator (doesn't fit). Home Server / NAS: The 4x 3.5-inch HDD capacity is exceptional for a case this size. Perfect for a compact Plex server or backup NAS. However, if you need more than 4 drives, consider a larger tower case. * Custom Water Cooling Enthusiast: The dual-radiator capability (280mm front + 240mm top) allows for a quiet and efficient custom loop. The bottom fan mounts (in 5-slot mode) provide additional radiator/fan space. Note that the 7-slot mode blocks the bottom fan mounts, so plan your loop accordingly.

Things to Consider

Switching between the 5-slot and 7-slot back panel is not a tool-free operation; it requires disassembling the case. Choose your configuration early and stick with it. E-ATX motherboards will make cable management more challenging due to limited space in the rear. Plan your routing carefully. The case does not come with dust filters for the mesh panels. Consider aftermarket magnetic filters if you live in a dusty environment. The white finish is prone to showing fingerprints and smudges; keep a microfiber cloth handy. ## FAQ
Q: Will a 360mm radiator fit in the O11 AIR MINI? A: No, the maximum radiator size is 280mm in the front and 240mm in the top. For a 360mm radiator, look at the larger O11 Dynamic series. Q: Which back panel mode should I choose? A: Choose 5-slot mode if you're using an ATX or smaller motherboard and want maximum GPU length (362mm). Choose 7-slot mode if you need E-ATX support or multiple expansion cards, but note that GPU length is limited to 320mm. Q: How many fans come with the case? A: Two 140mm fans are pre-installed in the front and one 120mm fan in the rear. Top and bottom fans are not included and must be purchased separately.

Product Disclosure (Amazon)

  • Manufacturer: リアンリー(Li LIAN LI)
  • ASIN: B09DS37Y11
  • Note: This article covers a manufacturer-made product based on Amazon listing details.