JONSBO/JONSPLUS Z20 Black Micro-ATX Mini vs Cooler Master NR200 Mini-ITX PC Case

Design and build quality

The construction of these mini PC cases focuses on balancing durability with compact form factors. Product B features 2mm integrated bent steel panels for both the panel and top panel, complemented by a large area of delicate square openings. This design combines heat dissipation and craftsmanship with comprehensive coverage via a magnetic dust filter. Product A emphasizes a sleek 18.25L footprint designed for horizontal GPU setups. While Product A does not specify panel thickness in the provided data, its design prioritizes airflow with removable side brackets. Both cases utilize steel construction typical for this category, though Product B provides explicit metrics on material thickness.

Motherboard and PSU compatibility

Compatibility is a primary differentiator between these two chassis. Product A is engineered exclusively for Mini-ITX motherboards, limiting build options to the smallest form factor. It is strictly fitted for SFX only power supplies, perfectly matched with specific SFX Gold units. In contrast, Product B supports Micro-ATX boards, offering greater flexibility for component selection. Its power supply compatibility is significantly broader, supporting ATX, SFX, and SFX-L units with multiple adjustment gears. This allows users to utilize standard power supplies without requiring specialized SFX models, potentially reducing overall build costs despite the higher case price.

GPU clearance and expansion

Graphics card support is critical in small form factor builds. Product A supports high-end GPUs up to 330mm in length, including specific references to RTX 5080 and RX 9070 XT models in a horizontal mounting configuration. Product B offers a larger maximum GPU clearance of up to 363mm, depending on other hardware configurations. This additional space allows for longer triple-fan graphics cards that might not fit in stricter enclosures. Product B also features a removable PCI-E fixing piece to optimize the installation experience for longer GPUs. Users planning to upgrade to larger graphics cards in the future may find the extra millimeters in Product B beneficial.

Cooling potential and airflow

Thermal management is addressed differently in each case. Product A unlocks maximum airflow setup with support for 165mm CPU coolers and up to 6 fans. It allows for a removable side bracket that facilitates fast 240/280mm radiators or fan setups. Product B supports top mounting for 120mm or 140mm fans, with specific slots for two of each size. It is compatible with 240mm AIO liquid coolers on the top. While Product A supports larger 280mm radiators, Product B provides detailed fan slot configurations for both top and bottom mounting. Both cases aim to stay cool under pressure, but Product A offers slightly higher maximum radiator compatibility.

Size and portability

Physical dimensions dictate where these PCs can be placed. Product A boasts a sleek 18.25L footprint, making it one of the more compact options available for Mini-ITX builds. Product B is built with about 20L of volume, which is slightly larger but still easily placed in various desktop environments. Product B includes a detachable carrying handle, enhancing portability for LAN events or moving the system between rooms. Product A is designed for horizontal GPU setups which may affect how it sits on a desk. For users prioritizing the smallest possible desk footprint, Product A holds a slight advantage in volume.

Feature set and usability

Usability features vary between the two models. Product B includes a detachable carrying handle and magnetic dust filters for comprehensive coverage. The innovative design includes a removable PCI-E fixing piece to optimize installation. Product A features a removable side bracket that allows for fast radiator or fan setup, unlocking maximum cooling potential without disassembling the entire case. Product B recommends checking pictures for detailed introductions to prevent interference from different hardware configurations, indicating a complex internal layout. Both cases offer tool-less or simplified access points for key components like drives and cooling hardware.

Price and value

Cost is a significant factor for budget-conscious builders. Product A is listed at $83.99, making it the more affordable option of the two. Product B is priced at $99.99, reflecting its additional compatibility features and build specifications. While Product A saves money upfront, the requirement for an SFX power supply may increase the total system cost, as SFX units are often more expensive than ATX units. Product B allows for standard ATX power supplies, which can offset the higher case price. Value depends on whether the user prioritizes initial case cost or total system compatibility and component pricing.

Which one should you buy?

Choosing between these cases depends on your specific build requirements. If you need maximum compatibility for Micro-ATX motherboards and want to use a standard ATX power supply, Product B is the superior choice. Its larger GPU clearance and thicker steel panels also benefit long-term upgrades. However, if you are building a strict Mini-ITX system and want to minimize desk footprint and initial case cost, Product A is viable. Product A is best for users who already own SFX power supplies and prioritize a 280mm radiator setup. For most users seeking flexibility and ease of component sourcing, Product B offers the more versatile platform.