DHCR CONFIGURATIONS


SVALT Cooling Dock model DHCR 4th generation with new and updated noted cooling features New 4th Gen Model
The new 4th generation DHCR includes extensive improvements for a substantial increase in cooling efficiency with the latest Apple MacBook Pro and Air laptops, along with comprehensive optimization for the 2021+ MacBook Pro. The 4th gen’s thermally conductive heatsink silently reduces overall laptop temperatures, while the Fx Cooling Fan boosts peak performance potential for sustained heavy workloads.

The new and improved 4th gen DHCR cooling features are grouped into the following three categories as shown in the diagram above and described below: (1) conductive cooling, (2) heatsink cooling and (3) airflow cooling.

  • (1) Improved conductive cooling with increased heat transfer from flat-backed laptops like the 2021+ MacBook Pro and 2022+ MacBook Air. This is accomplished with a 6% larger thermally conductive interface for increased surface area, up to 68% thinner laptop coupling plate for increased heat distribution, and available for the first time with the 4th gen, direct metal-to-metal laptop coupling for reduced impedance and unrestricted conductive heat transfer.

  • (2) Improved heatsink cooling with increased heat transfer from heatsink to passive/active cooling airflows. This is accomplished with up to 185% deeper and 18% taller cooling fin air channels, up to 52% increased surface area, and up to 846% more continuous and interconnected cooling fin air channels for increased heat flow throughout the heatsink.

  • (3) Improved airflow cooling with increased airflow into the 2021+ MacBook Pro’s center air intake vent for direct internal processor cooling, as well as flushing out more hot air away from laptop exhaust vents. This is accomplished with 7x more through-hole openings, a 91% increase in total through-hole open area, and 151% increase in opening width. Available for the first time with the 4th gen, the through-holes become air channels that extend below the laptop’s bottom edge with a position and angle to guide cooling airflow into the 2021+ MacBook Pro’s center intake. A 22% smaller front horizontal air channel with 80% deeper curving sides concentrates cooling airflow along the laptop’s bottom edge vents.


SVALT Cooling Dock DHCR 4th gen back view with all anodized aluminum colors Heatsink Colors
The heatsink uses a special finish to improve heatsink cooling performance. The body of the heatsink is finished by hand with sanding, heavy bead-blasting and a short anodize to produce a deeply-textured micro-porous non-glossy matte finish that increases the active area of the heatsink for higher radiant emissivity cooling and improved conductive cooling from both passive and active airflows. The aluminum heatsink is available with the following anodize colors as shown in the above image and listed below from left to right (see Specs for details):

  • Silver: Similar to Apple Silver.
  • Gray: Similar to Apple Space Gray.
  • Dark Gray: Similar to Apple Space Black.
  • Black: A full and deep black.


SVALT Cooling Dock DHCR 4th gen front view with all anodized aluminum colors Heatsink Coupling
The new 4th generation DHCR uses an extra-large laptop coupling plate on the front of the heatsink for improved heat transfer from the laptop. The coupling plate is specially prepared with a fine hand sanded and polished finish that is protected from the heavy bead-blasting used on the rest of the heatsink body to produce an extra-flat and extra-smooth surface finish for improved laptop coupling and higher conductive heat transfer. The laptop coupling plate is available with the following configurations (see Specs for details):

  • Direct Heatsink Coupling: This configuration is provided for customers that want maximum cooling performance with the laptop directly contacting the heatsink’s aluminum surface for unrestricted conductive heat transfer. Edge padding wraps around all four sides of the laptop coupling plate for corner impact protection, while the heatsink’s anodized aluminum coupling plate extends slightly beyond the top of the pads to achieve proper metal-to-metal surface contact. The 4th generation DHCR’s aluminum coupling plate edges and corners have been rounded to remove sharp edges for direct metal-to-metal contact.

  • Thermal Assembly Coupling: This configuration is provided for customers that do not want direct metal-to-metal laptop coupling, and instead prefer having a special assembly of ultra-thin low-impedance thermally conductive materials covering the aluminum laptop coupling plate. This assembly is semi-transparent, which may show surface variations such as areas of lighter, darker or uneven coloring. The underlying anodize color will impact both the resultant color of the assembly and visibility of surface variations. For instance, the lightest anodize color (silver) will result in the lightest yellow assembly color with the least visible surface variations, while the darkest anodize color (black) will result in the darkest orange assembly color with the most visible surface variations. Most of the darker colors will show at least some minor surface and color variations within the assembly. The thermal assembly coupling configuration has additional cost and a longer build lead time.


SVALT Cooling Dock model DHCR 4th generation Fx Cooling Fan diagram Fx Cooling Fan Accessory
All generations of the DHCR have been designed to work with the Fx Cooling Fan accessory, but the new 4th generation DHCR has been significantly improved to maximize the Fx Cooling Fan’s boost in heatsink cooling and direct internal processor cooling on 2021+ MacBook Pros. The separate Fx Cooling Fan design moves more air with less noise, while also allowing the heatsink to be as large as possible with the most thermal mass and cooling surface area.

The Fx is highly recommend for DHCR customers with the 2021+ MacBook Pro, so to help customers unlock their 2021+ MacBook Pro’s peak performance potential, the Fx includes a $30 below cost discount when bundled with the 4th gen DHCR. The Fx is available with the following fan configurations:

  • FxR17 w/ B16 and W20: The Fx ships with the R17 fan installed, and includes the B16 and W20 fans for users to exchange to best meet their workstation cooling and noise preferences. The black B16 fan can be used for baseline always-on ultra-quiet cooling. The white W20 fan offers more aggressive hi-airflow cooling that can be used in less noise sensitive environments or switched on/off as needed. The red R17 fan is pre-installed for a good balance between audio and cooling performance.

  • FxB22: The Fx ships with the B22 fan installed. The black B22 variable speed fan covers the full range of ultra-quiet to hi-airflow cooling performance. The B22 is a high-end Noctua NF-A8 PWM chromax.black.swap fan that is controlled with Noctua’s NA-FC1 PWM dial-variable speed controller.

  • All fan configurations include front and back black anodized fan supports, front and back black metal fan screen, mounting fasteners, fan 2/3/4-pin fan adapter, on/off switch, 12 volt power supply (fixed for North America and multi-plug for other locations) and hex key for right-to-repair disassembly. See the Fx Cooling Fan product page for additional details.


SVALT fans and colors B16, R17, W20, B22 Fx Fan Colors
Listed from left to right:
  • B16 80x80x25mm fan with black frame and black blades.
  • R17 80x80x25mm fan with black frame and red blades.
  • W20 80x80x25mm fan with black frame and white blades.
  • B22 80x80x25mm fan with black frame and black blades.


SVALT Cooling Dock model DHCR 2nd generation with noted Fx modular diagram Future Configurations
The Fx Cooling Fan can be either bundled with the DHCR or can be order separately in the future. The Fx’s bolt and snap modular system allows for easy fan exchange through accessories, and will work with any standard 80x80mm fan. We also offer a variety of upgrade options to our customers.