When a system's heat load outgrows its chassis, the answer is not a bigger case — it is a bigger radiator. The OCOCOO BC12 External Radiator is engineered for exactly that moment: a flagship external cooling solution that moves heat rejection outside the enclosure, where space, airflow and service access are no longer constraints.
The BC12 is designed around one principle: compatibility. Standard G1/4" ports mate directly with existing fittings, tubing and quick-disconnects, so integrators can drop it into current liquid cooling platforms without redesigning the loop. Its external mount format simplifies installation in server racks, storage arrays, telecom cabinets and custom PC enclosures alike, while keeping maintenance access — fan cleaning, fluid inspection, pump service — out of the cramped interior of the machine it cools.
With 40 water channels, an optimized fin structure and high coolant flow capacity, the BC12 sustains up to 12,000 W of heat rejection under continuous duty. That thermal headroom keeps coolant temperature rise low and junction temperatures stable even in 24/7 operation — the operating profile that data center and industrial cooling demand. For wholesale buyers, the value goes beyond the spec sheet: OCOCOO's standardized production and rigorous quality control deliver repeatable thermal results across large orders, so every unit performs like the sample that won the contract.
The BC12 is manufactured through OCOCOO's fully in-house vertical chain — CNC precision machining, brazing, finishing and QA — using corrosion-resistant aluminum cores with sealed construction rated for 30,000 hours of service. Every unit is 100% pressure tested before shipment, and the product line carries the quality discipline behind OCOCOO's ISO 9001 system and TÜV Rheinland verification. Customization is available for dimensions, port placement, mounting brackets and finish, letting OEM partners and distributors differentiate their offerings without starting from scratch — backed by a monthly manufacturing capacity of 50,000 units.
Data centers and server racks: external heat rejection for high-density racks, storage arrays and telecom equipment, with simplified maintenance access. Custom PCs and modded rigs: a premium external loop component for showcase builds, desk-mounted loops and enthusiast systems where aesthetics and airflow matter. Industrial and OEM thermal management: continuous-duty cooling for power electronics, EV battery packs, automation cabinets and telecom base stations.
If your system has outgrown internal cooling — or your roadmap calls for heat loads measured in kilowatts — the BC12 External Radiator turns a thermal bottleneck into a solved problem. Share your heat load, loop configuration and mounting requirements with the OCOCOO engineering team for a custom external cooling proposal.
Contact OCOCOO today for wholesale pricing, samples and specification sheets.
