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NZXT S340

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description NZXT S340 Overview

The NZXT S340 is a mid-tower computer case for ATX, Micro-ATX, and Mini-ITX desktop builds. Its design uses a closed steel front panel, a side window, a lower power-supply shroud, and a vertical cable-management bar that separates routed cables from the main chamber. The original S340 is distinct from the later S340 Elite, which used a tempered-glass side panel, and the model is associated with NZXT's minimalist case designs.

help NZXT S340 FAQ

What motherboard sizes fit the NZXT S340?

The original S340 supports ATX, Micro-ATX, and Mini-ITX motherboards. Its mid-tower layout also includes a lower power-supply shroud and a vertical cable-management bar behind the motherboard tray. [NZXT S340 review](https://www.anandtech.com/show/9431/the-nzxt-s340-case-review)

Why is the NZXT S340's cable management distinctive?

A vertical steel bar hides the main bundle of motherboard and power cables from the visible side of the case. Combined with the lower PSU shroud, this gives the S340 its clean internal appearance without needing a dual-chamber case. [NZXT S340 review](https://www.anandtech.com/show/9431/the-nzxt-s340-case-review)

How many fans came with the original NZXT S340?

The original S340 commonly shipped with two 120 mm fans, one at the top and one at the rear. It also provided additional front fan mounts, so builders often added intake fans for stronger cooling. [GamersNexus S340 review](https://gamersnexus.net/hwreviews/1887-the-nzxt-s340-review-cable-management)

Can the NZXT S340 still be used for a modern ATX build?

Yes, an ATX motherboard can fit, and the case accepts standard ATX power supplies and modern expansion cards within its clearance limits. The main practical limitation is that the closed steel front panel favors quiet, tidy builds over the airflow of newer mesh-front cases. [NZXT S340 review](https://www.anandtech.com/show/9431/the-nzxt-s340-case-review)

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