Supermicro SuperChassis 835TQC-R1K03B Server Case

Powerful, scalable, and engineered for reliability, the Supermicro SuperChassis 835TQC-R1K03B is a 3U rack-mount server chassis built to handle demanding enterprise workloads. This enclosure combines generous external storage bays, robust cooling redundancy, and proven compatibility with EATX and ATX motherboards, making it an ideal foundation for virtualization hosts, data-intensive applications, and high-availability servers. With two 1000 W redundant power supplies already installed, you can deploy high-performance configurations with confidence, knowing you have a solid platform designed for uptime and easy maintenance in data centers, labs, or on-premise server rooms.

• Extensive storage capacity: The chassis features 11 external drive bays—3 x 5.25" external bays for versatile I/O and expansion options and 8 x 3.5" external bays for high-capacity storage. This flexible layout supports a wide range of storage configurations, including virtualization hosts, database servers, and media servers, while enabling straightforward drive upgrades as your workload evolves. The design minimizes cabling complexity and keeps drive trays accessible for quick maintenance.
• Redundant power for reliability: Equipped with 2 x 1000 W redundant power supplies installed at the factory, the SuperChassis 835TQC-R1K03B emphasizes uptime. Redundant PSUs help maintain service continuity during power events or component failures, which is essential for 24/7 operations, remote data centers, and environments where downtime is costly. The dual-power configuration also provides flexibility for future expansion and load balancing across power rails.
• Excellent motherboard compatibility: Designed to support EATX and ATX motherboards, this chassis accommodates a broad spectrum of server and workstation configurations. Whether you’re deploying multi-GPU compute nodes, dense virtualization hosts, or storage-focused platforms, the ability to install larger EATX boards expands your chipset and RAM options while preserving room for expansion cards and I/O adapters. The chassis layout streamlines airflow and cable routing for clean, maintainable builds.
• Optimized cooling with airflow shroud: Cooling is a core focus, with a five-fan arrangement (three in the middle, two at the rear) and an adjustable air shroud designed to deliver 100% cooling redundancy for critical components. This configuration helps maintain stable temperatures under heavy I/O, reduces thermal throttling, and supports sustained performance during peak workloads. The adjustable shroud enables fine-tuning of airflow to match your exact component configuration and density.
• Rack-ready, enterprise-grade chassis: The 3U rack-mountable enclosure is built from sturdy materials to endure the rigors of data-center environments. Its black finish and professional build quality convey reliability, while the chassis design emphasizes serviceability—allowing technicians to access drive bays, fans, and power connections with relative ease. This chassis is well-suited for colo facilities, on-premise data centers, and lab environments where consistent performance and straightforward maintenance are priorities.

Technical Details of Supermicro SuperChassis 835TQC-R1K03B

• Chassis form factor: 3U rack-mountable chassis
• Color: Black
• Drive bays: 3 x external 5.25" bays + 8 x external 3.5" bays (total 11 external bays)
• Power supply: 2 x 1000W redundant power supplies installed
• Motherboard support: EATX and ATX
• Expansion slots: 7x PCIe/slot options
• Fans: 5 fans (3 middle, 2 rear)
• Air shroud: Adjustable for optimized airflow
• Height: 3U
• Rack compatibility: Standard 19" rack

how to install Supermicro SuperChassis 835TQC-R1K03B

Installing this chassis involves careful preparation, grounding, and attention to airflow and component compatibility. Follow these guidelines to set up a reliable, high-performance server build with confidence:

• Prepare your rack and workspace: Ensure the rack is properly grounded and level. Confirm there is enough clearance in front and rear for 3U height, drive access, and cable management. If you use rails, install the appropriate rail system for your enclosure and rack.
• Ground yourself and inspect the chassis: Before handling components, discharge static electricity by touching a grounded metal surface or using an anti-static wrist strap. Open the chassis side panels to verify interior components, check cable pathways, and ensure fans and air shrouds are securely mounted.
• Mount the motherboard: Install EATX or ATX motherboard standoffs in the chassis, align the I/O shield with the rear I/O opening, and secure the motherboard with the appropriate screws. Route power and data cables cleanly to minimize obstruction and ensure efficient airflow.
• Install storage and drive trays: Insert the 3 x external 5.25" bays and 8 x external 3.5" bays with their trays if applicable. Connect SATA/SAS cables as needed per your storage configuration, taking care to route cables away from fans and vents to avoid interference with cooling.
• Install power supplies and connect cables: Ensure both 1000W redundant PSUs are seated correctly and connected to the motherboard power connectors, drives, and any expansion cards as required. Verify transitional power-on behavior and cable integrity before powering up the system.
• Manage airflow and finalize assembly: Confirm the five fans (three middle, two rear) are installed and operational. Position the adjustable air shroud to optimize airflow for your installed components. Recheck all cable management, then reinstall side panels and secure them.
• Deploy into the rack and power on: Slide the chassis into the rack, connect to power, and perform a POST to verify that the motherboard and storage devices initialize correctly. Monitor fans and temps during the initial boot to confirm proper cooling and operation.

Frequently asked questions

• Does this chassis support EATX or ATX motherboards? Yes. It is designed to accommodate both EATX and ATX form factors, offering flexibility for a range of server and workstation configurations.
• How many drive bays does it have? It provides 11 external drive bays in total: 3 x 5.25" bays plus 8 x 3.5" bays, enabling dense storage layouts suitable for virtualization, databases, and media servers.
• Are power supplies included? Yes. The chassis ships with two 1000W redundant power supplies installed, supporting high-availability deployments and load distribution.
• Is this chassis suitable for 24/7 operation? Yes. Built for enterprise workloads, it emphasizes reliability, robust cooling, and accessible maintenance to support continuous operation.
• What kind of cooling does it provide? It features five fans (three in the middle and two at the rear) with an adjustable air shroud to deliver 100% cooling redundancy and maintain optimal component temperatures under heavy workloads.