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Compact mATX case with black wood front panel, steel frame, horizontal or vertical orientation

Lian Li

Lian Li B4X-WD 21.3L mATX PC case, Black Wood

SKU CH-CNVF-B1KZC

A 21.3-litre small-form-factor case holding mATX boards, 358 mm GPUs, 360 mm radiators and 168 mm CPU coolers, with two pre-installed 120 mm fans and a real wood front panel

  • Max graphics card length358.9MM
  • Housing materialSteel 4.0 mm / Wood
  • Power supply mountingTop and Bottom
  • Supported motherboard sizesMicro-ATX
  • Dust filteringBottom: Magnetic filter x 1
  • 3.5-inch internal bays1

Model Black Wood Panel

  • Compact 21.3L footprint fits mATX builds with 358mm GPU support
  • Dual orientation lets you place it horizontally or vertically on the desk
  • Two pre-installed slim 120mm fans deliver airflow out of the box
  • Real wood front panel adds a premium look to any workspace
  • Flexible cooling handles up to 360mm AIO and 168mm CPU cooler

Hardware Compatibility

The Lian Li B4X-WD is a 21.3-litre small form factor chassis built for Micro-ATX motherboards. It accepts graphics cards up to 358.9 mm long and CPU coolers up to 166.5 mm tall. Both ATX power supplies up to 140 mm and SFX units fit inside, and the case can sit horizontally or vertically to suit the desk layout.

Clearance and Power Supply Choice

Check the length of your graphics card against the 358.9 mm limit and the height of your CPU cooler against the 166.5 mm maximum. Verify whether you will use an ATX or SFX power supply, because the side and front fan mounts change depending on that choice. The front 120 mm position is only available with an SFX unit.

Pre-Installed Fans and Wood Front Panel

Two slim 120 mm non-RGB fans come fitted at the top, giving immediate airflow without extra purchases. The real wood front panel replaces a mesh surface, altering the visual character while the magnetic bottom dust filter stays in place for easy cleaning. Front I/O includes USB 3.0 Type-A, USB 3.2 Type-C and audio ports.

How it compares

Measured against everything we stock in Tower & Desktop PC Cases, at today’s prices. Recalculated every night.

Price $78.99
Cheaper than about 65% of the 1,468 comparable items (median $100.99).

New to this? Buying PC parts with Monero — what to check, what it costs to pay, and what is never asked for.

Specifications

Product
Brand nameLIAN LI
Product lineB4
Model nameB4X-WD
Product typeATX / Micro ATX Mid Tower
Product colorBlack
Storage
3.5-inch internal bays1
2.5-inch internal bays1
Ports & slots
Expansion card slots4
Front panel portsUSB 3.0 Type A x 2, Power Button x 1, Audio x 1, USB 3.2 Type C x 1
Size & build
Max graphics card length358.9MM
Housing materialSteel 4.0 mm / Wood
Power supply mountingTop and Bottom
Dust filteringBottom: Magnetic filter x 1
Fan mounting optionsTop: 120 mm x 2 (Pre-installed)
Side (With SFX PSU) 120 mm x 3 / 140 mm x 2
Side (With ATX PSU): 120 mm x 2 / 140 mm x 2
Front (With SFX PSU ONLY): 120 mm x 1
Bottom: 120 mm x 3 / 140 mm x 2
Rear: 120 mm x 1
Product dimensions47.6 × 26.6 × 36.3CM
Compatibility
Supported motherboard sizesMicro-ATX
Radiator supportSide - Up to 360 mm
CPU cooler height limit166.5MM
PSU length limit140 mm
More details
120mm fan count2

Other versions of this model

2 more in the same range

Questions about this item

Will a 358mm graphics card fit with the pre-installed top fans in place?

Yes, the case allows up to 358.9mm GPU length and the two slim 120mm fans are already mounted at the top, leaving the side intake clear for the card.

Can I use a standard ATX power supply and still mount a 360mm radiator on the side?

No, a 360mm side radiator is only supported when an SFX power supply is installed; with an ATX PSU the side bracket is limited to 120mm or 140mm fans.

What motherboard sizes are compatible and how many expansion slots does the case provide?

The case accepts micro-ATX motherboards and provides four rear expansion slots for add-in cards.

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