Bitaxe Hex Heatsink

Description

Bitaxe Hex Heatsink — Purpose-Built Thermal Management for the 6-Chip Powerhouse

The Bitaxe Hex packs six ASIC chips onto a single board, delivering 3+ TH/s of solo mining hashrate. That kind of density generates real heat — and generic heatsinks don’t cut it. The Bitaxe Hex Heatsink was designed from scratch by D-Central specifically for the Hex’s unique 6-chip layout. Precision-machined aluminum, engineered for the thermal demands of multi-chip mining, and built to keep every chip in its optimal temperature range during 24/7 operation.

Six chips means six heat sources. This heatsink addresses all of them with a unified thermal solution that distributes cooling evenly across the entire board — not just the hottest chip. The result: consistent hashrate, stable overclocking headroom, and hardware that lasts.

Technical Specifications

Why the Hex Needs Its Own Heatsink

Standard Bitaxe heatsinks are designed for single-chip boards — a 40x40mm footprint covering one ASIC die. The Bitaxe Hex has a completely different thermal profile: six BM1366 chips spread across a larger PCB, each generating heat independently. A single-chip heatsink on a 6-chip board is like putting a band-aid on a broken arm. The Hex Heatsink was engineered from the ground up for this specific challenge:

• Full 6-chip coverage — one heatsink spans all six ASIC dies, distributing thermal load evenly instead of creating hot spots
• Uniform temperature distribution — prevents the scenario where one chip runs 15°C hotter than its neighbors, causing that chip to throttle while others coast
• Multi-chip thermal mass — the larger aluminum body absorbs and dissipates heat from all chips simultaneously, smoothing temperature spikes during burst workloads
• Sustained hashrate stability — when all six chips stay within their optimal thermal envelope, your 3+ TH/s stays at 3+ TH/s, not sawtoothing between 2.5 and 3.2
• Overclocking headroom — cooler chips overclock further. With proper cooling, each BM1366 can be pushed beyond stock frequencies for more hashrate per watt

Thermal Performance

The Bitaxe Hex’s six BM1366 chips collectively draw significant power — and every watt consumed becomes heat that needs to go somewhere. The Hex Heatsink’s high-density fin array is tuned for the airflow characteristics of the recommended fan configuration:

• High-density fin array — maximized surface area for aggressive heat dissipation across all six chip zones
• Flat-lapped base — precision-finished contact surface ensures thermal paste makes full contact with every ASIC die
• Optimized for 80mm fans — pairs with the Bitaxe Hex Case which mounts an 80mm fan for high-volume, low-noise airflow across the fin array
• Reduced fan speed requirements — efficient heat transfer means your fan can run at lower RPM for the same thermal result, directly reducing noise

What’s Included

You supply: Bitaxe Hex board, thermal paste, fan (80mm recommended via the Hex Case).

Compatible Miners

Not compatible with: Bitaxe Gamma/Supra/Ultra (single-chip boards — see Premium Heatsink, Modern Heatsink, or Basic Heatsink), Bitaxe GT, NerdAxe, NerdQAxe series, NerdOctaxe. This heatsink is exclusively engineered for the Bitaxe Hex 6-chip board layout.

Complete Your Hex Setup

The Hex Heatsink is one part of the equation. For the complete Bitaxe Hex cooling and protection solution:

Frequently Asked Questions

Built by the Bitaxe Pioneers

D-Central designed this heatsink because the Bitaxe Hex needed one and nobody else had built it. We created the original Bitaxe Mesh Stand, developed the first heatsinks for single-chip Bitaxe models, and when the Hex arrived with its 6-chip architecture, we engineered the thermal solution it demanded. Every heatsink is precision-machined and tested against real-world mining loads in our Canadian facility. When you run a Bitaxe Hex at 3+ TH/s around the clock, you need cooling that was built by people who understand what that means. Every hash counts — especially when six chips are hashing in unison.