






Cellhasher Rackmount +20 Phones
Featuring a server-style smartphone box designed for those that need serious mobile compute power without clutter.
Instead of traditional devices, these phones are built by hand as screenless, battery-free phones engineered specifically for efficiency, longevity, and rackmount integration. By removing displays and other accessory components, these units focus entirely on delivering maximum performance with minimal energy consumption. Built to slot seamlessly into standard server racks with its 2U sizing, the Rackmount Cellhasher delivers unparalleled compute power per watt while staying cool and organized. Integrated cooling fans and centralized management tools ensure stable operation and streamlined control across every device.

Per Phone Specifications
| Phone | RAM | Storage | Android Version | Processor | $ / RAM | $ / Storage |
|---|---|---|---|---|---|---|
| S10 | 8 GB | 128 GB | 12.0 | 8 Cores @ 2.8 GHz | $11.86 / GB RAM | $0.74 / GB Storage |
| S20 | 12 GB | 128 GB | 14.0 | 8 Cores @ 2×2.73 GHz + 2×2.5 GHz + 4×2.0 GHz | $9.57 / GB RAM | $0.89 / GB Storage |
| Flip3 | 8 GB | 128 GB | 12.0 | 8 Cores @ 1×2.84 GHz + 3×2.42 GHz + 4×1.8 GHz | $12.49 / GB RAM | $0.78 / GB Storage |
| Flip4 | 8 GB | 128 GB | 12.0 | 8 Cores @ 1×3.2 GHz + 3×2.75 GHz + 4×2.0 GHz | $13.11 / GB RAM | $0.81 / GB Storage |
Manage all your devices simply with Cellhasher Control software.
Download Now →Additional Unique Features
Custom Heat Sinks
Custom aluminum heat sinks designs are provided specifically for each phone model, preventing any unaware thermal throttling.
The Review Process
Every phone is individually 1) hand disassembled and formatted to its slot, 2) vetted for reliability and specification accuracy and performance, 3) pre-optimized using Cellhasher Control
ADB Provision
Devices are non-rooted by default, ensuring trusted hardware. Every order instead includes an original authorization file, allowing you to instantly begin controlling your devices in Cellhasher Control.
Inside the Cellhasher
What's Included:
Accessories
- PCIe adapters (x20)
- Custom heat sinks (installed)
- USB-B to USB-A cable
- Power cord (120V/240V ATX)
- Ethernet cable
Cellhasher Control
Access to management software and one-click features to adjust how you dedicate your CPU. Preview it here.
Motherboard
Custom PCB design—mindfully made for ARM and featuring integrated data transfer, onboard storage, OTG-capability (select models), all at 5V output.
Power Supply
Supports 120V or 240V AC standard outlets using an adjustable-switch on the PSU.
Cooling Fans
5V cooling fans (x4) with adjustable speed via Cellhasher Control.
BMS Cables
Cables for a Battery Management System (BMS) to run phones battery-less through the power supply.
