--- product_id: 724938204 title: "Cooler Master MasterBox Q300L Mini Tower PC Case MCB-Q300L-KANN-S00 CS7251" brand: "cooler master" price: "€ 14304.99" currency: EUR in_stock: true reviews_count: 13 url: https://www.desertcart.es/products/724938204-cooler-master-masterbox-q300l-mini-tower-pc-case-mcb-q300l store_origin: ES region: Spain --- # Spacious Interior with Easy Assembly Supports up to 6 Fans for Optimal Cooling Compact Mini-Tower Design Cooler Master MasterBox Q300L Mini Tower PC Case MCB-Q300L-KANN-S00 CS7251 **Brand:** cooler master **Price:** € 14304.99 **Availability:** ✅ In Stock ## Summary > 🖤 Master your setup with the MasterBox Q300L — where compact meets cool. ## Quick Answers - **What is this?** Cooler Master MasterBox Q300L Mini Tower PC Case MCB-Q300L-KANN-S00 CS7251 by cooler master - **How much does it cost?** € 14304.99 with free shipping - **Is it available?** Yes, in stock and ready to ship - **Where can I buy it?** [www.desertcart.es](https://www.desertcart.es/products/724938204-cooler-master-masterbox-q300l-mini-tower-pc-case-mcb-q300l) ## Best For - cooler master enthusiasts ## Why This Product - Trusted cooler master brand quality - Free international shipping included - Worldwide delivery with tracking - 15-day hassle-free returns ## Key Features - • **Durable Yet Stylish:** Alloy steel and acrylic panels combine robustness with a clean, professional look—just watch for scratches! - • **Modern Connectivity:** Equipped with 2 USB 3.0 ports for lightning-fast data transfers and peripheral support. - • **Customizable Cooling Setup:** Supports up to 6 fans, ensuring your rig stays cool even during marathon work or gaming sessions. - • **Sleek & Compact Powerhouse:** Fits perfectly on your desk without sacrificing performance or style. - • **Tool-Free, Hassle-Free Assembly:** Spacious interior and smart layout make building or upgrading your PC a breeze. ## Overview The Cooler Master MasterBox Q300L is a compact mini-tower PC case designed for Micro-ATX and Mini-ITX motherboards. It features a spacious interior for easy assembly, supports up to six fans for superior air cooling, and includes 2 USB 3.0 ports for modern connectivity. Constructed from alloy steel and acrylic, it balances durability with sleek aesthetics, making it a top choice for professionals seeking a stylish yet functional PC case. ## Description - Review: 骨董品のメインPC買い替えの為購入。 見た目が良く、コンパクトで軽量です。 内部も広く、私の様なﾞにわかﾞでも 問題無く組み付け出来ました。 不満点らしい不満点は特にありませんが、 気になった点としては底部メッシュがめくれやすく、 早速反ってしまいました。 また、側面のアクリルは傷がつきやすいようで、 初日にして早速目に見える痕が付きました（笑） 総合的には大変満足です。 久しぶりにPCケースを購入しましたが、 最近のケースは良くできているなぁと 感心させられました。 Review: ここにはQ300L以外のレビューもあるようなので明記しておきます。 Cooler Master Mastercase Q300L のレビューになります。 良かった点 ・お手頃価格 ・コンパクト ・ビデオカードが大きいものも入る ・裏配線スペースが広い ・ファンが最大6つつけられる ・電源部など区切ってないので作業性がいい ・電源ボタンなどが横につけられる 微妙な点 ・ファンを取り付ける穴が小さく、ドリルで穴を開け直さなければ入らない。 ・サイドパネルがアクリルなので傷つきやすい ・全面穴だらけなのでうるさい。(ここはファンの設定次第でどうにもなりますがゲームをしたら辛い) 全体的にはいいケースだと思いますが私はさすがに音に耐えられず一ヶ月で手放しました。 ## Features - CS7251 Japanese Authorized Dealer - Equipped with a geometric magnetic dust filter - Uses modular I/O panels that can be adjusted to the mounting position - Can be used both vertically and horizontally - Equipped with large clear side panels - Supports microATX and Mini-ITX motherboards - Ensures space for expansion cards up to 360mm - Accepts front water cooling radiators up to 240mm - Superior Cable Management Design ## Technical Specifications | Specification | Value | |---------------|-------| | ASIN | B0785GRMPG | | Amazon Bestseller | #113,711 in Computers ( See Top 100 in Computers ) #622 in Computer Cases | | Antenna Location | Gaming | | Brand | Cooler Master | | Built-In Media | 1 x Computer Case | | Case Type | Mini-Tower | | Color | Black | | Compatible Devices | Desktop PC | | Cooling Method | Air | | Customer Reviews | 4.4 4.4 out of 5 stars (14,531) | | EU Spare Part Availability Duration | 2 Years | | Enclosure Material | Alloy Steel Plastic | | Fan Size | 144 Millimeters | | Global Trade Identification Number | 00884102038006, 00884102095313, 04719512065488 | | Hard Disk Form Factor | 3.5 Inches | | Internal Bays Quantity | 1 | | Item Dimensions D x W x H | 38.7D x 23W x 37.8H cm | | Item Type Name | Grocery | | Item Weight | 480 Grams | | Manufacturer | Cooler Master | | Mfr Part Number | MCB-Q300L-KANN-S00 | | Model Name | Q300L | | Model Number | MCB-Q300L-KANN-S00 | | Number of Fans | 3 | | Other Special Features of the Product | Adjustable, Breathable, Compatible with CPU Coolers, Dust Filter, Edge-to-edge panels | | Power Supply Maximum Output | 500 Watts | | Power Supply Mounting Type | Bottom Mount | | Supported Motherboard | Micro-ATX and Mini-ITX | | Total Expansion Slots Quantity | 4 | | Total USB 3.0 Ports | 2 | | Total Usb Ports | 2 | | UPC | 884102095313 884102038006 | ## Product Details - **Brand:** Cooler Master - **Case Type:** Mini-Tower - **Color:** Black - **Cooling Method:** Air - **Fan Size:** 144 Millimeters - **Material:** Alloy Steel Plastic - **Model Name:** Q300L - **Motherboard Compatability:** Micro-ATX and Mini-ITX - **Power Supply Mounting Type:** Bottom Mount - **Recommended Uses For Product:** Gaming ## Images ![Cooler Master MasterBox Q300L Mini Tower PC Case MCB-Q300L-KANN-S00 CS7251 - Image 1](https://m.media-amazon.com/images/I/91UOdM9izhL.jpg) ![Cooler Master MasterBox Q300L Mini Tower PC Case MCB-Q300L-KANN-S00 CS7251 - Image 2](https://m.media-amazon.com/images/I/81KohRhMOZL.jpg) ![Cooler Master MasterBox Q300L Mini Tower PC Case MCB-Q300L-KANN-S00 CS7251 - Image 3](https://m.media-amazon.com/images/I/81+rpaxzoYL.jpg) ![Cooler Master MasterBox Q300L Mini Tower PC Case MCB-Q300L-KANN-S00 CS7251 - Image 4](https://m.media-amazon.com/images/I/718+isi0SoL.jpg) ![Cooler Master MasterBox Q300L Mini Tower PC Case MCB-Q300L-KANN-S00 CS7251 - Image 5](https://m.media-amazon.com/images/I/811RcaP29JL.jpg) ## Available Options This product comes in different **Pattern, Size, Style** options. ## Questions & Answers **Q: Is this case wide enough to support a cooler master hyper 212 evo?** A: I know what the official CM specs are, but I think it will fit. This guy installed a taller cooler with its cover and it fit. https://www.vortez.net/articles_pages/cooler_master_masterbox_q300l_review,8.html **Q: I've seen photos of the handle (from a Q300P) being attached to the center of the top panel of this case. Is this possible?** A: You can remove the plastic bit that has the cooler master logo on it and install handles on the case like the Q300P **Q: what are the size and placements of the fans?** A: There are 3 fans (120mm) in total. 1 exhaust fan in the rear, and 2 intake fans at the front. -CM Myke **Q: Does the case come pre-assembled?** A: Hello Kevin, The case does come assembled, but you will need to plug in the connectors, and open it up to install your components. CM-PNguyen ## Customer Reviews ### ⭐⭐⭐⭐⭐ Review *by ヲ***氏 on May 27, 2020* 骨董品のメインPC買い替えの為購入。 見た目が良く、コンパクトで軽量です。 内部も広く、私の様なﾞにわかﾞでも 問題無く組み付け出来ました。 不満点らしい不満点は特にありませんが、 気になった点としては底部メッシュがめくれやすく、 早速反ってしまいました。 また、側面のアクリルは傷がつきやすいようで、 初日にして早速目に見える痕が付きました（笑） 総合的には大変満足です。 久しぶりにPCケースを購入しましたが、 最近のケースは良くできているなぁと 感心させられました。 ### ⭐⭐⭐⭐ Review *by あ***あ on January 12, 2021* ここにはQ300L以外のレビューもあるようなので明記しておきます。 Cooler Master Mastercase Q300L のレビューになります。 良かった点 ・お手頃価格 ・コンパクト ・ビデオカードが大きいものも入る ・裏配線スペースが広い ・ファンが最大6つつけられる ・電源部など区切ってないので作業性がいい ・電源ボタンなどが横につけられる 微妙な点 ・ファンを取り付ける穴が小さく、ドリルで穴を開け直さなければ入らない。 ・サイドパネルがアクリルなので傷つきやすい ・全面穴だらけなのでうるさい。(ここはファンの設定次第でどうにもなりますがゲームをしたら辛い) 全体的にはいいケースだと思いますが私はさすがに音に耐えられず一ヶ月で手放しました。 ### ⭐⭐⭐⭐⭐ A wonderful case with excellent mod cons *by P***N on July 11, 2023* This case is well laid out, with good mounting points for and HDD and two SSDs on the back side and plenty of space for cable runs (though with cables being long, you may still end up with spaghetti). The case has plenty of mounting points for 120mm and 140mm fans, with markings to distinguish different holes. The case is also well perforated to increase airflow. One things that may not be so good is that the front IO (power button and USB) can be moved. In theory this allows flexibility, but for my build, it not being hard mounted (and thus the space its cabling not being factored into design) means I had to put in an awkward place; a full length GPU prevents right hand mounting and a tall CPU cooler prevents top mounting. The only real drawback with this case comes from modern motherboards and GPUs. Moderns GPUs can be THREE SLOTS THICK (!) and take up space. On the first motherboard I used, this was not a problem, but the PCI on the second board was lower, so the clearance between the GPU and PSU is far too small for comfort. ## Frequently Bought Together - Cooler Master MasterBox Q300L Micro-ATX Tower with Magnetic Design Dust Filter, Transparent Acrylic Side Panel, Adjustable I/O & Fully Ventilated Airflow, Black (MCB-Q300L-KANN-S00) - AMD Ryzen 5 5500 6-Core, 12-Thread Unlocked Desktop Processor with Wraith Stealth Cooler - Thermaltake Smart 500W 80+ White Certified PSU, Continuous Power with 120mm Ultra Quiet Cooling Fan, ATX 12V V2.3/EPS 12V Active PFC Power Supply PS-SPD-0500NPCWUS-W --- ## Why Shop on Desertcart? - 🛒 **Trusted by 1.3+ Million Shoppers** — Serving international shoppers since 2016 - 🌍 **Shop Globally** — Access 737+ million products across 21 categories - 💰 **No Hidden Fees** — All customs, duties, and taxes included in the price - 🔄 **15-Day Free Returns** — Hassle-free returns (30 days for PRO members) - 🔒 **Secure Payments** — Trusted payment options with buyer protection - ⭐ **TrustPilot Rated 4.5/5** — Based on 8,000+ happy customer reviews **Shop now:** [https://www.desertcart.es/products/724938204-cooler-master-masterbox-q300l-mini-tower-pc-case-mcb-q300l](https://www.desertcart.es/products/724938204-cooler-master-masterbox-q300l-mini-tower-pc-case-mcb-q300l) --- *Product available on Desertcart Spain* *Store origin: ES* *Last updated: 2026-05-18*