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(Used) NZXT S340 Black Mid-Tower Case

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Quoting product code: B33RF


About this product


  • Can accommodate ATX, mini ITX and MicroATX (mATX) motherboards
  • A total of five bays – two 3.5-inch bays, two 2.5-inch (SSD) bays and a combo bay
  • Two USB 3.0 ports, one microphone port and one headphone port is located at the top of the case

Product overview

• Can accommodate ATX, mini ITX and MicroATX (mATX) motherboards
• A total of five bays – two 3.5-inch bays, two 2.5-inch (SSD) bays and a combo bay
• Two USB 3.0 ports, one microphone port and one headphone port is located at the top of the case
• Five fan locations provide you with superb cooling potential, with two fans already installed
• Water cooling ready – able to accommodate up to a 280mm radiator at the front or a 120mm radiator at the rear of the case
• Seven case expansion slots give you more than enough space for a wide variety of extra components that you may decide to add
• Steel cable management bar and PSU shroud keeps cabling tame and hidden
• Manufacturer part number: CA-S340W-B1
• Removable magnetic front vent filter and rear PSU filter keep dust intake to a minimum
• Windowed side panel lets you view and marvel at your internal components

Would this be the right case for me?
New and experienced users alike will find building with the NZXT S340 easy, thanks to a variety of cable management options and its cooling potential. The optical disk drive (ODD) free design means that despite its compact size, the interior of the case is spacious. An integrated power supply (PSU) shroud/cover and cable management bar supply you with areas in the case to hide messy cabling, helping you quickly and easily create an ultra-clean build look. You can route your cables to these areas through the various grommet-less holes and utilise one of the twenty plus cable management points to hold your cables in place.

A 360 degree steel casing surrounds the all-steel chassis to provide you with durability, and a good sized window on the side of the case lets you see inside. With the great cable management possibilities you’ll be able to show off a sleek and smart interior that you can be proud of. There is plenty of space for hard drives or solid state drives (SSDs) too, with two 2.5-inch bays located on top of the PSU shroud, two 3.5-inch bays covered by the shroud and a further combo bay located underneath the 3.5-inch bays.

What is the cooling potential like with this case?
A total of five fan mounting locations at the front, rear and top of the case gives you superb cooling potential. Pre-fitted are two exhaust fans at the rear and top of the case, leaving you with the option to install either two 140mm or 120mm fans at the front. A magnetic fan/vent filter is also located at the front of the case, to keep dust intake to a minimum and provides easier cleaning too. Another filter is located at the bottom of the PSU vent. This case supports water cooling, with it able to accommodate up to a 280mm* radiator at the front of the case or a 120mm radiator at the rear.

*You may only be able to install a single row of fans on the radiator, due to the cable management bar

What connections are provided?
The top of the case has two USB 3.0 ports and HD audio (microphone and headphone port), for ease of access to files stored on portable USB drives and connecting headsets or any other USB device. Please note that the S340 doesn’t have a dedicated reset button.


Manufacturer NZXT
Manufacturer part number CA-S340W-B1
Form factor Mid-tower
Motherboard compatibility ATX, Mini-ITX, MicroATX (M-ATX)
PSU provided No
PSU compatibility ATX
Windowed side panel? Yes
Colour Glossy black and matt black
Bays and expansion
5.25-inch external 0
3.5-inch external 0
3.5-inch internal 2 and 1 x combination 3.5-inch and 2.5-inch bay
2.5-inch See above and 2 x 2.5-inch bays (on top of shroud)
Expansion slots 7
Maximum GPU length supported 364 mm (without radiator), 334 mm (with radiator)
Maximum CPU cooler height supported 161 mm
Maximum PSU length supported 240 mm
Front fan mounts 2 x 140 mm/120 mm
Rear fan mounts 1 x 120 mm (1 x FN V2 120 mm fan pre-installed)
Top fan mounts 1 x 140 mm/120 mm (1 x FN V2 120 mm fan pre-installed)
Bottom fan mounts N/A
Side fan mounts N/A
Water cooling 1 x 120 mm / 140mm / 240 mm / 280 mm radiator (front)
1 x 120 mm radiator (rear)
USB 3.0 2 x USB 3.0 (top)
USB 2.0 N/A
Audio 1 x headphone port, 1 x microphone port (top)
Fan controls N/A
Other N/A
Dimensions (W x D x H) 200 mm x 432 mm x 445 mm
Weight 7.05 kg
Material SEEC steel and ABS plastic
Warranty Two years
Package content
21 x motherboard screws
8 x motherboard standoffs (8 x pre-installed)
12 x M3 screws (for 2.5-inch drive)
4 x power supply (PSU) screws
9 x 6-32 thumb screws (for 2.5-inch drive bays and expansion slots, all pre-installed)
8 x 6-32 special thumb screws (for side panel and 3.5-inch drive bays, all pre-installed)
8 x short fan screws (8 x pre-installed)
1 x motherboard positioning standoff (pre-installed)
1 x standoff wrench
10 x cable ties