{"product_id":"l400-mesh-itx-computer-chassis-compact-12-1l-vertical-gaming-case","title":"L400 Mesh ITX Computer Chassis - Compact 12.1L Vertical Gaming Case","description":"\u003cp\u003eIn this review of the L400 Mesh ITX Computer Chassis, the bottom line is simple: if you want a truly compact, portable mini-ITX case that still accepts full-length, triple-slot GPUs and prioritizes airflow, this is one of the better choices available. The L400's 12.1L vertical layout and lightweight steel frame deliver desktop-grade graphics support in a small footprint, and the included PCIe 3.0 riser and DP 1.4 cable remove common compatibility headaches for GPU-first builds.\u003c\/p\u003e\n\u003ch2\u003eKey Features\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eUltra-Compact Vertical Design:\u003c\/strong\u003e The 12.1L chassis keeps your desk clear while fitting triple-slot GPUs up to 13.78in (350mm) for serious gaming or content work.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eAdvanced Mesh Cooling System:\u003c\/strong\u003e Full-perforation steel mesh panels and support for up to three 140x15mm ultra-slim fans provide efficient side-to-top airflow for sustained GPU and CPU cooling.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eGPU-Friendly Solutions:\u003c\/strong\u003e A dual reverse PCIe 3.0 riser and a 1.5m DP 1.4 extension are included to simplify multi-monitor setups and reduce signal loss for modern GPUs.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eRugged Yet Portable Frame:\u003c\/strong\u003e High-density steel construction, reinforced corners and an integrated steel handle make the chassis light and durable for LAN travel.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eExpandable I\/O \u0026amp; Power Compatibility:\u003c\/strong\u003e Front Type-C (10Gbps), two USB 3.0 ports, and support for ATX, SFX and SFX-L PSUs give flexibility for diverse builds.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eLightweight Build:\u003c\/strong\u003e Weighing about 5.5lbs (2.5kg), the case is roughly half the weight of typical towers while still supporting desktop components.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eWho It's For\u003c\/h2\u003e\n\u003cp\u003eThe L400 is ideal for gamers, content creators and professionals who need a compact workspace or a portable case for LAN events but refuse to compromise on GPU size. Its ability to house triple-slot GPUs like RTX 4060\/4080-class cards while remaining a 12.1L chassis makes it attractive for high-performance mini-ITX systems.\u003c\/p\u003e\n\u003cp\u003eUsers who want extensive internal drive bays, large air coolers or multiple 3.5in HDDs should look elsewhere; this chassis is optimized for compact, GPU-centric builds with two 2.5in SSD mounts and limited internal expansion. Also, builders should be comfortable adjusting BIOS PCIe settings to Gen3 for the provided riser.\u003c\/p\u003e\n\u003ch2\u003ePros \u0026amp; Cons\u003c\/h2\u003e\n\u003cp\u003e\u003cstrong\u003ePros\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eExcellent space-to-performance ratio thanks to support for long, triple-slot GPUs in a 12.1L frame.\u003c\/li\u003e\n\u003cli\u003eEffective airflow from full-perforation mesh and the option to fit three ultra-slim 140mm fans for sustained thermal performance.\u003c\/li\u003e\n\u003cli\u003ePractical extras included: PCIe 3.0 riser, DP 1.4 cable and a steel handle make setup and transport easier.\u003c\/li\u003e\n\u003cli\u003eVersatile PSU compatibility with ATX\/SFX\/SFX-L support and speedy front Type-C I\/O.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong\u003eCons\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eVery compact internal space limits drive expansion and large air coolers, so planning parts compatibility is essential.\u003c\/li\u003e\n\u003cli\u003eThe riser requires manual BIOS setting to PCIe Gen3 for stable operation, adding a step for novice builders.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eSpecifications\u003c\/h2\u003e\n\u003ctable\u003e\n\u003ctr\u003e\n\u003ctd\u003eVolume\u003c\/td\u003e\n\u003ctd\u003e12.1L\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eDimensions\u003c\/td\u003e\n\u003ctd\u003e7.8in x 6.65in x 14.41in (198 x 169 x 363mm)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eGPU Clearance\u003c\/td\u003e\n\u003ctd\u003eUp to 13.78in (350mm), triple-slot\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eFan Support\u003c\/td\u003e\n\u003ctd\u003eUp to 3 x 140x15mm ultra-slim fans\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eDrive Bays\u003c\/td\u003e\n\u003ctd\u003e2 x 2.5in SSD mounts\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePSU Compatibility\u003c\/td\u003e\n\u003ctd\u003eATX, SFX, SFX-L\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eIncluded Accessories\u003c\/td\u003e\n\u003ctd\u003ePCIe 3.0 riser, DP 1.4 cable, steel handle, manual\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/table\u003e\n\u003ch2\u003eOur Verdict\u003c\/h2\u003e\n\u003cp\u003eThe L400 Mesh ITX chassis is a strong option for anyone building a high-performance mini-ITX rig who needs portability without giving up a long, triple-slot GPU. It balances excellent airflow, practical included accessories and a rugged but lightweight frame, making it good value for GPU-first compact builds; just plan storage and cooling choices to match the smaller interior.\u003c\/p\u003e\n\u003ch2\u003eFrequently Asked Questions\u003c\/h2\u003e\n\u003cp\u003e\u003cstrong\u003eWill this case fit a full-length triple-slot GPU?\u003c\/strong\u003e\u003cbr\u003eThe L400 supports triple-slot GPUs up to 13.78in (350mm) including many RTX 40-series cards, so most full-length graphics cards designed for desktop use will fit.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eAre fans included?\u003c\/strong\u003e\u003cbr\u003eNo, the chassis supports up to three 140x15mm ultra-slim fans but these are sold separately, allowing you to choose fan model and profile.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eDoes the riser work out of the box?\u003c\/strong\u003e\u003cbr\u003eThe case includes a dual reverse PCIe 3.0 riser; for reliable performance you should set your motherboard PCIe mode to Gen3 in BIOS as recommended.\u003c\/p\u003e","brand":"SHINYSNAKE","offers":[{"title":"Default Title","offer_id":48234204430555,"sku":"B0DYJ8QY9G","price":89.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0724\/1043\/1707\/files\/81dee2_z9QL._AC_SL1500.jpg?v=1770749572","url":"https:\/\/gearmusthave.com\/products\/l400-mesh-itx-computer-chassis-compact-12-1l-vertical-gaming-case","provider":"GearMustHave","version":"1.0","type":"link"}