Cooler Master TD300-KGNN-S00

Overview

The Cooler Master TD300-KGNN-S00 is a mid-tower PC case designed for builders who want a compact setup without sacrificing airflow, cooling options, or hardware space. It supports Micro-ATX and Mini-ITX motherboards and accommodates graphics cards up to 13.5 inches long and CPU coolers up to 6.5 inches tall. The case features a mesh front panel with a dust filter and comes with two preinstalled 120 mm ARGB fans that provide immediate airflow and customizable lighting.

Its tempered glass side panel allows you to showcase your build, while the removable top panel makes installing radiators or fans straightforward. With room for up to six fans or a 280 mm radiator, this case offers flexible cooling configurations. The included ARGB and PWM hub helps manage lighting and fan speeds efficiently, reducing cable clutter. Front I/O includes two USB 3.2 Gen 1 ports and dedicated audio jacks for easy peripheral connections.

Key features

• Mesh front panel with integrated dust filter to maintain clean airflow and protect internal components
• Two preinstalled 120 mm ARGB fans provide effective cooling and customizable lighting right out of the box
• Removable top panel simplifies installation of radiators or additional fans, enhancing cooling flexibility
• Tempered glass side panel offers a clear view of your components, perfect for showcasing your build
• Supports up to six fans or a 280 mm radiator, allowing tailored cooling setups for different needs
• Included ARGB and PWM hub centralizes lighting and fan speed control, reducing cable clutter and improving system management
• Front I/O panel with two USB 3.2 Gen 1 ports and separate audio jacks for convenient access to peripherals and headsets
• Spacious interior supports graphics cards up to 13.5 inches and CPU coolers up to 6.5 inches tall, fitting a wide range of hardware
• Approximately 0.9 inch of cable routing space behind the motherboard tray helps keep the build neat and organized
• Storage options for up to four internal drives, accommodating both SSDs and HDDs for versatile storage needs

Key specs

• Motherboard compatibility: Micro-ATX, Mini-ITX
• Maximum graphics card length: 13.5 inches
• Maximum CPU cooler height: 6.5 inches
• Preinstalled fans: Two 120 mm ARGB front fans
• Cooling support: Up to six fans or one 280 mm radiator
• Front I/O ports: Two USB 3.2 Gen 1, separate audio jacks
• Side panel: Tempered glass
• Cable routing space: Approximately 0.9 inch behind motherboard tray
• Storage capacity: Up to four internal drives

Connectivity and compatibility

The front I/O panel is designed for quick and easy access to essential connections. Two USB 3.2 Gen 1 ports provide fast data transfer speeds for external drives and peripherals, while separate audio jacks ensure clear sound input and output for headsets or speakers. This setup supports a wide range of devices, making it suitable for gaming, content creation, or general productivity.

Installation and setup

The case’s removable top panel allows for straightforward installation of radiators or additional fans, reducing the hassle often associated with compact cases. The included ARGB and PWM hub centralizes control of lighting and fan speeds, which simplifies cable management and keeps the interior tidy. With ample space for cable routing behind the motherboard tray, you can achieve a clean and professional-looking build without compromising airflow.

Ideal uses and environments

This mid-tower case fits well in environments where space is limited but performance and cooling cannot be compromised. It is a strong choice for compact gaming rigs, streamlined workstations, or LAN party systems that need to be portable yet powerful. Builders who want to showcase their components with lighting and a clear side panel will appreciate the balance of style and function this case offers.

Orders are processed within 2 business days, which includes verification, packing, and dispatch. Shipping costs are calculated at checkout based on destination, total weight, and selected speed. Free shipping applies to carts over $100 (excluding heavyweight items). All available options and final pricing are clearly shown before payment so you can choose the service that best fits your needs.

Deliveries are handled by major carriers such as USPS, UPS, and FedEx. Estimated delivery times are displayed at checkout and may vary depending on service level and location. Please note that these are estimates and can be affected by weather, holidays, or carrier volume. Once your order ships, you’ll receive a tracking number for real-time updates from pickup to final delivery.

Providing an accurate shipping address helps prevent delays, and changes may be limited once the order has been dispatched. P.O. boxes are supported only when permitted by the selected carrier. Packaging and handoff are optimized to protect items during transit, though oversized or high-weight products may require special handling. All shipping methods and any related constraints are clearly shown during checkout.

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Returns are accepted within 30 days of delivery. Items must be unused, in the same condition received, with tags, manuals, accessories, and original, unaltered packaging. Any item kept will be deducted from the refund. Start a return by sending us an email. Items sent back without approval may be refused or returned to the sender.

Some items are not returnable: opened TVs/combos/monitors 37″+, opened computers or software, electronic downloads, opened consumables (film, paper, bulbs, media, ink), custom or modified computers, special-order or “nonreturnable” items, submerged underwater gear, and opened educational media.

After inspection, refunds are issued to the original payment method; allow 5–7 business days for the credit to post. Shipping, handling, customs duties, and import taxes are nonrefundable. If an item is used, incomplete, or not in original condition, a 30% restocking fee may apply. Direct exchanges are not offered; purchase the replacement and return the original for a refund.

We act solely as a reseller. Any product warranty is provided and administered by the manufacturer, not by our store. That means eligibility, coverage, and outcomes are determined by the manufacturer’s policy for each brand and model. Before purchasing, we recommend reviewing the warranty terms on the manufacturer’s website or in the product documentation to confirm what is covered and for how long.

If you need warranty service, please file the claim directly with the manufacturer. They may require proof of purchase, the product serial number, original packaging, photos, or basic troubleshooting. Some brands ask you to register the product or obtain a case number before shipping it for repair or replacement. We don’t submit or approve claims, but we can point you to the correct support links and contact details.

Keep your invoice and packaging in a safe place, and report any functional issues to the manufacturer as soon as they appear. If you’re unsure whether a problem is covered, the manufacturer’s support team can confirm next steps and timelines. While we cannot intervene in decisions or outcomes, we’re happy to provide purchase documentation or guidance so you can move through the warranty process smoothly.

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