Daniel Hansen is the German-born designer of the DAN Cases gaming case for Mini-ITX systems, the development of which he financed with his Flensburg-based one-man company, named after him, via the crowdfunding platform Kickstarter The campaign, which was extremely successful with almost 400,000 Euros, brought international attention to the minimalist SFF case (Small Form Factor) and helped establish its popularity among PC hobbyists, mini-case enthusiasts and gamers. The hype surrounding the unique aluminium case is also easy to explain, as it is nothing less than the smallest gaming case in the world! The A4-SFX V4.1 represents the fourth edition that has now been released to market. The DAN Cases A4-SFX V4.1 Mini-Case at a Glance:Extremely compact dimensions with only 7.25 liters volumeHigh-grade aluminium with polished finishSuperb craftsmanship thanks to production by Lian LiSpace for two 92mm fans and even one 120mm AiOSupports full gaming graphics cards (e.g. NVIDIA GeForce GTX 1080)3M riser module with full PCI Express 4.0 speedSupports Mini-ITX motherboards (all AMD and Intel sockets)Place for powerful SFX or SFX-L power supplies and two to three 2.5-inch drivesThe new features of version 4 (4.1) briefly summarized:New front panel USB slot type C (USB 3.1 or USB 3.2 Gen1)3M Riser cable completely in black, certified for PCI3 4.0 (version 4.1)New slot for 92mm fan under the mainboardThe bracket for a 120mm AiO is optionalOptimised Space Usage & Ingenious DesignWith the extremely compact dimensions of only 115 x 200 x 317 millimetres (W x H x D) of the chassis, the case has a volume of just 7.25 litres - roughly the size of a shoe box or toaster. The fact that a complete gaming PC can be installed in spite of this size format is achieved by a well thought-out design and one trick: The graphics card is housed parallel behind the Mini-ITX motherboard in a separate chamber along with the fact that almost every square centimeter inside the DAN Case A4-SFX V4.1 is used sensibly, while there is usually an unnecessary amount of free space left over in ordinary tower cases. Gaming PCs just don\'t get any smaller than this! High Quality Aluminum Case Produced by Lian LiExternally, the innovative little case impresses with its minimalist design and the flawless workmanship of the brushed aluminium. The 1.5 millimetre thick metal is produced in cooperation with case specialist Lian Li and, with its chic hairline finish, this all helps contribute to the unique look. Accordingly, the minimalist front of the A4-SFX V4.1 features a revised power button, an unaccompanied USB 3.2 port with an internal motherboard connection, and the interior itself is limited to the space required for truly essential hardware. Due to the meticulously planned dimensions of the case, the maximum permissible dimensions of all components must be observed exactly. A detailed operating manual in German and English clearly illustrates the sequence in which assembly must be performed. The power supply of the mini-gaming system must be a power supply unit in the compact SFX or slightly longer SFX-L standard, pulling in cold air from the right side and exhausting waste heat upwards. Behind the front a 15 mm high 2.5 inch drive can be accommodated, while under the power supply one (with PSU in SFX-L format) to two (with PSU in SFX format) further 2.5 inch SSDs/HDDs can be mounted in a drive frame. Motherboards with M.2 slots expand the drive capacities accordingly. Two More Radiator SlotsThe clever cooling design of the case is similarly spartan in outlook, as it does completely without the case fan and takes advantage of the integrated cooling of the installed hardware, thus saving valuable space here as well. To ensure that all components can breathe enough fresh air at all times and that their waste heat can be easily removed, the two side panels and the top of the A4-SFX V4.1 have been provided with round air holes over a large surface area along with elongated holes on the bottom to ensure a continuous supply of fresh air. Since the V2, there have been holes included that allow a 92 mm fan on the bottom, which can be used instead of one of the three SSDs. In the new V4.1 version, there is an additional slot for a 92mm fan, which can be placed under the motherboard - without having to do without a drive. The additional V3 mounting bracket for a 120mm radiator, which is integrated vertically either on the left side, i.e. on the side where the graphics card is installed, or opposite on the side where the mainboard tray is mounted, is now available to purchase separately. With the latter option, the fan-less 400W