Fractal Design Era 2 / Lian Li O11 Air Mini

Fractal Design Era 2: Era 2 Mini-ITX case; Silver (FD-C-ERA2N-01), Midnight Blue and Charcoal Gray. The original Era is a separate model.

Lian Li O11 Air Mini: O11 Air Mini (2021); black O11AMX and white O11AMW. The O11 Dynamic Mini, O11D Mini V2 Flow and full-size O11 Dynamic are separate cases.

SpecificationFractal Design Era 2Lian Li O11 Air Mini
Release year20242021
Motherboard and form factorMini-ITX; 18.97 L volume

A small-form-factor case that accepts only Mini-ITX motherboards.

Fractal Design		—
Graphics cardUp to 326 mm long, 137 mm tall, 48 mm thick; 3 expansion slots; pre-installed PCIe 4.0 riser cable

Fractal says the slidable central wall gives 15 mm of internal flexibility. GamersNexus notes that in wall position 3 GPU thickness rises to 63 mm (3.1 slots) while the CPU cooler limit drops to 55 mm.

Fractal Design		—
CPU cooler and radiatorAir cooler up to 70 mm; 120, 140, 240 or 280 mm radiator on top

The 70 mm limit means low-profile coolers; for more powerful CPUs a 240/280 mm liquid cooler on top is more suitable.

Fractal Design		—
Fans2 × Aspect 12 PWM installed at the bottom; mounts for 2 × 120/140 mm on top and 2 × 120 mm at the bottom Fractal Design—
Power supplySFX or SFX-L

GamersNexus says SFX-L significantly reduces cable space and recommends standard SFX.

Fractal Design		—
Storage4 × 2.5-inch drive mounts

There is no 3.5-inch hard drive support.

Fractal Design		6 × 2.5-inch SSD or 3 × 2.5-inch SSD + 3 × 3.5-inch HDD

Drives mount in the chamber behind the motherboard tray.

Lian Li
Front I/O2 × USB-A (5 Gbps); 1 × USB-C (20 Gbps); combo audio/mic jack; illuminated power button

The 20 Gbps USB-C runs at full speed only if the motherboard has a USB 3.2 Gen 2x2 header.

Fractal Design		2 × USB 3.0, 1 × USB 3.1 Type-C, 1 × HD Audio

The Type-C port needs a matching front-panel USB-C header on the motherboard.

Lian Li
MaterialsAnodised aluminium exterior and side panels; FSC-certified walnut top panel; bottom dust filter Fractal Design—
Size and weight366 × 165 × 314 mm; 4.6 kg net Fractal Design—
Colours and warrantySilver, Midnight Blue and Charcoal Gray; 2-year warranty Fractal Design—
Size and materials—400 (D) × 288 (W) × 384 (H) mm; 4 mm aluminium panel, 0.8 mm mesh panel, 4 mm tempered glass

The mesh pattern on the front, top and side is designed to let fans draw air straight from outside.

Lian Li
Motherboard—E-ATX (up to 280 mm wide), ATX, Micro-ATX, Mini-ITX

The 7-slot back panel is for ATX, Micro-ATX and ITX; the 5-slot back panel is for Micro-ATX and ITX. Both are included.

Lian Li
Graphics card and vertical mounting—Up to 362 mm long; 7 or 5 expansion slots; vertical GPU support (top or bottom mode)

With the vertical GPU bracket in top mode, two 120 mm fans can be fitted under the card; in bottom mode there is no room for them.

Lian Li
CPU cooler and power supply—CPU cooler up to 170 mm; ATX power supply up to 200 mm Lian Li
Included fans—2 × 140 mm PWM at the front, 1 × 120 mm PWM at the rear

PWM fans adjust their speed to temperature using a signal from the motherboard.

Lian Li
Fan support—Top 3 × 120 / 2 × 140 mm; side 2 × 120 mm; bottom 2 × 120 / 2 × 140 mm; front 2 × 120 / 2 × 140 mm; rear 1 × 120 mm Lian Li
Radiator support—Top 240 or 280 mm; side 240 mm; bottom 240 or 280 mm; front 240 or 280 mm

When fitting a 240 mm radiator at the top with an ATX board, an offset bracket is used to avoid clashing with memory modules.

Lian Li
Dust filter—1 × removable bottom dust tray Lian Li