Side-by-Side Comparison
Lian Li B4-mATX vs NZXT H5 Flow RGB
Standardized 5-pillar engineering audit, thermal telemetry, verified longevity metrics, and complete technical specification diff.
★ Recommended Winner
● HIGHLY RATED
Lian Li B4-mATX
Composite Score:
4.5
/ 5.0
A dense, high-airflow 21.3L mATX chassis engineered with DAN Cases that pairs dual-orientation flexibility with remarkable GPU and cooler clearance.
● HIGHLY RATED
NZXT H5 Flow RGB
Composite Score:
4.4
/ 5.0
A refined, high-airflow mid-tower enclosure featuring rigid SGCC steel construction, an innovative single-frame F360 RGB Core fan, and exceptional thermal performance.
⚖️
Mizex Comparative Audit Verdict
The Lian Li B4-mATX earns the higher Mizex Composite Score (4.5 vs 4.4), leading across 2 of 5 engineering pillars. With superior ratings in Engineering & Architecture, Buyer Value & Upgrades, it represents the superior reliability choice.
5-Pillar Engineering Telemetry
Detailed comparison across standardized normalized 1.0 – 5.0 engineering pillars.
Lian Li B4-mATX
NZXT H5 Flow RGB
Engineering & Architecture
(30%)
Winner: Lian Li B4-mATX (+0.1)
4.5
4.4
Build Quality & Materials
(20%)
Winner: NZXT H5 Flow RGB (+0.1)
4.4
4.5
Thermal, Power & Acoustics
(20%)
Winner: NZXT H5 Flow RGB (+0.1)
4.5
4.6
Real-World Reliability
(20%)
Tie
4.6
4.6
Buyer Value & Upgrades
(10%)
Winner: Lian Li B4-mATX (+0.1)
4.5
4.4
Lian Li B4-mATX: Strengths & Caveats
✔ Advantages
- Dense 21.3-liter dual-orientation enclosure supporting both horizontal and vertical placement
- Generous clearance for up to 358mm GPUs and 162mm tall CPU air coolers
- Comprehensive ventilation with full mesh panels and two included 120mm slim PWM fans
- Supports up to a 360mm liquid cooling radiator when configured with an SFX power supply
✖ Documented Caveats
- Installing a 360mm radiator mandates an SFX power supply instead of standard ATX
- ATX power supply compatibility is constrained to a maximum depth of 140mm
NZXT H5 Flow RGB: Strengths & Caveats
✔ Advantages
- Pre-installed unified F360 RGB Core single-frame fan simplifies front cooling and drastically reduces cable clutter.
- Unrestricted ultra-fine mesh front, top, and PSU shroud panels provide excellent thermal dissipation for CPU and GPU.
- Generous 28.7 mm cable routing space with wide channels, tie-down points, and pre-installed Velcro straps.
- Clean tool-less panel access with sturdy ball-and-socket push pins and seamless tempered glass integration.
✖ Documented Caveats
- Top radiator mounting is strictly limited to 240 mm (or 280 mm with low-profile memory), lacking support for 360 mm ceiling radiators.
- Pre-installed fans utilize 3-pin DC voltage regulation rather than 4-pin PWM control.
- Front panel I/O is spartan with only a single USB-A port alongside the USB-C port.
- Does not support rear-connecting (BTF / Project Zero) motherboards.
Technical Specification Comparison
Side-by-side spec alignment. Rows highlighted with subtle shading denote differing specifications.
| Specification | Lian Li B4-mATX | NZXT H5 Flow RGB |
|---|---|---|
| Brand DIFF | Lian Li | NZXT |
| Model DIFF | B4-mATX | H5 Flow RGB |
| Case Type DIFF | Small Form Factor (SFF) Mini Tower | — |
| Case Volume DIFF | 21.3 L | — |
| Dimensions DIFF | 420 mm x 191 mm x 288 mm | — |
| Materials DIFF | Steel, Mesh (optional Real Wood panel) | — |
| Supported Motherboards DIFF | Micro-ATX, Mini-ITX | — |
| Orientation DIFF | Horizontal or Vertical | — |
| Max Gpu Length DIFF | 358 mm | — |
| Max Cpu Cooler Height DIFF | 162 mm | — |
| Max Psu Length DIFF | 140 mm (ATX) | — |
| Supported Psu Form Factors DIFF | ATX (max 140 mm), SFX | — |
| Radiator Support DIFF | Up to 360 mm AIO (with SFX PSU) | — |
| Fan Mount Locations DIFF | Front (120 mm), Rear (120 mm), Bottom (120 mm), Side (120 mm) | — |
| Preinstalled Fans DIFF | 2 x 120 mm slim fans | — |
| Fan Speed DIFF | 0 - 1800 RPM | — |
| Fan Max Airflow DIFF | 64.2 CFM | — |
| Fan Max Air Pressure DIFF | 2.4 mmH2O | — |
| Storage Drive Support DIFF | 2.5" SSD | — |
| Cable Management DIFF | Rear clearance routing | — |
| Ac Inlet DIFF | Rotatable AC inlet | — |
| Form Factor DIFF | — | Compact ATX Mid-Tower |
| Materials DIFF | — | SGCC Steel, Tempered Glass |
| Motherboard Support DIFF | — | E-ATX (up to 277 mm), ATX, Micro-ATX, Mini-ITX |
| Dimensions DIFF | — | 465 mm x 225 mm x 430 mm (18.3 x 8.9 x 16.9 in) |
| Case Volume DIFF | — | 45.0 L |
| Weight DIFF | — | 7.63 kg (16.82 lbs) |
| Front Radiator Support DIFF | — | Up to 360 mm / 280 mm |
| Top Radiator Support DIFF | — | Up to 240 mm (280 mm with low-profile memory only) |
| Rear Radiator Support DIFF | — | 120 mm |
| Pre Installed Front Fan DIFF | — | 1x F360 RGB Core (Case Version, 1700 RPM, 50.1 CFM, 23.3 dBA) |
| Pre Installed Rear Fan DIFF | — | 1x F120Q Airflow (Case Version, 1350 RPM, 60.2 CFM, 24.1 dBA) |
| Bottom Fan Mounts DIFF | — | 2x 120 mm (on perforated PSU shroud) |
| Total Fan Capacity DIFF | — | Up to 9x 120 mm fans |
| Maximum GPU Clearance DIFF | — | Up to 410 mm |
| Maximum CPU Cooler Height DIFF | — | Up to 170 mm |
| Maximum PSU Clearance DIFF | — | Up to 200 mm |
| Cable Management Depth DIFF | — | 28.7 mm |
| Internal Drive Bays DIFF | — | 2x 2.5 in SSD, 1x 3.5 in HDD |
| Front I/O Ports DIFF | — | 1x USB 3.2 Gen 1 Type-A, 1x USB 3.2 Gen 2 Type-C, 1x 3.5 mm Headset Audio Jack |
| Dust Filtration DIFF | — | Ultra-fine perforated steel panels (Front, Top, Right Side) |
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