This table is a list of hardware random number generators that was initially on Wikipedia, but has since been removed, as it did not meet certain guidelines.
Table sort is not supported in Github like it is in Wikipedia, but if you install Greasemonkey and the Github Sort Content user script in your browser, you will then be able to sort the table columns.
These are externally available HWRNGs that you can plug into your computer, usually via USB, but PCIe, network, and even old-school DE-9 serial.
| Builder | Model | Interface | Price | Mbps | Entropy | Hardware | Software |
|---|---|---|---|---|---|---|---|
| Altus Metrum | ChaosKey 1.0 | USB | $40 | 10 | Reverse biased p-n junction | Open | GPLv2 |
| Araneus | Alea II | USB | €109 | 0.1 | Reverse biased p-n junction | Closed | Proprietary |
| Bitbabbler | BitBabbler Black | USB | $49 | 0.65 | Shot noise | Closed | GPLv2 |
| Bitbabbler | BitBabbler White | USB | $199 | 2.5 | Shot noise | Closed | GPLv2 |
| Comscire | PQ128MS | USB | $1845 | 128 | Shot noise | Closed | Proprietary |
| Comscire | PQ32MS | USB | $1445 | 32 | Shot noise | Closed | Proprietary |
| Comscire | PQ32MU | USB | $1095 | 32 | Shot noise | Closed | Proprietary |
| Comscire | PQ4000KSI | USB | $765 | 4 | Shot noise | Closed | Proprietary |
| Comscire | PQ4000KS | USB | $795 | 4 | Shot noise | Closed | Proprietary |
| Flying Stone Technology | NeuG | USB | $50 | 0.640 | ADC noise | Open | GPLv3 |
| Generic | RTL-SDR dongles | USB | $22 | 2.8 | Atmospheric noise | Closed | GPLv3 |
| Generic | Any webcam | USB | $7 | 0.96 | Image noise | Closed | Public domain |
| IDQ | Quantis USB | USB | €990 | 4 | Beam splitter | Closed | Proprietary |
| IDQ | Quantis PCIe-4M | PCIe | €1299 | 4 | Beam splitter | Closed | Proprietary |
| IDQ | Quantis PCIe-16M | PCIe | €2990 | 16 | Beam splitter | Closed | Proprietary |
| IDQ | Quantis Appliance 4M | Network | N/A | 4 | Beam splitter | Closed | Proprietary |
| IDQ | Quantis Appliance 16M | Network | N/A | 16 | Beam splitter | Closed | Proprietary |
| IDQ | Quantis AIS31 | PCIe & USB | N/A | 0.075 | Beam splitter | Closed | Proprietary |
| Kidekin | DigitalTRNG | USB | N/A | 2 | Registerless LFSR | Closed | Proprietary |
| Moonbase Otago | OneRNG | USB | $40 | 0.35 | Avalanche noise | Open | GPLv3 |
| Protego ST | SG100 Classic | Serial | €255 | 0.115 | Reverse biased zener diode | Closed | Proprietary |
| Protego ST | SG100 EVO-USB | USB | €279 | 0.115 | Reverse biased zener diode | Closed | Proprietary |
| Protego ST | SG100 EVO-USB CERT | USB | €530 | 0.115 | Reverse biased zener diode | Closed | Proprietary |
| QuintessenceLabs | qStream | Network | N/A | 1000 | Tunnel diode | Closed | Proprietary |
| Simtec Electronics | Entropy Key | USB | £36 | 0.032 | Reverse biased p-n junction | Closed | MIT |
| TectroLabs | SwiftRNG-LE | USB | $149 | 20 | Reverse biased Zener diode | Closed | Proprietary |
| TectroLabs | SwiftRNG | USB | $249 | 100 | Reverse biased Zener diode | Closed | Proprietary |
| TectroLabs | SwiftRNG-Pro | USB | $449 | 200 | Reverse biased Zener diode | Closed | Proprietary |
| TRNG98 | TRNG9803 | Serial | €49 | 0.072 | Closed | Proprietary | |
| TRNG98 | TRNG9815 | USB | €478 | 0.550 | Closed | Proprietary | |
| ubld.it | TrueRNG v2 | USB | $50 | 0.35 | Reverse-biased p-n junction | Closed | Proprietary |
| ubld.it | TrueRNG v3 | USB | $50 | 0.4 | Reverse-biased p-n junction | Closed | Proprietary |
| ubld.it | TrueRNGpro | USB | $100 | 3.2 | Closed | Proprietary | |
| Vault12 | TrueEntropy | iOS | Varies | 0.3 | Image noise | Closed | MIT |
| WaywardGeek | Infinite Noise | USB | $35 | 0.3 | Johnson-Nyquist noise | Open | Public Domain |
These are generators that are on CPUs, either provided stand-alone, as in the case for Intel and AMD, or as part of a SoC as in the case of Raspberry Pi. They may also be components for breadboard, solder, or other engineering projects
| Builder | Model | Interface | Price | Mbps | Entropy | Hardware | Software |
|---|---|---|---|---|---|---|---|
| Generic | STM32 Nucleo boards | USB | $10 | 0.56 | ADC | Closed | GPLv3 |
| Intel | Ivy Bridge | CPU | Varies | 3000 | Johnson-Nyquist noise | Mixed | Mixed |
| Raspberry Pi | Pi 1 Model B+ | SoC | $35 | 3.2 | Mixed | Mixed | |
| Raspberry Pi | Pi 2 Model B | SoC | $35 | 4.2 | Mixed | Mixed | |
| Raspberry Pi | Pi 3 Model B+ | SoC | $35 | 7 | Closed | Proprietary | |
| TRNG98 | TRNG9880 | SMT | €620 | 0.5 | Closed | Proprietary |
There are generators provided as part of HSMs, whether they are external USB devices, part of a smart device, or shipped in hardware for server platforms
| Builder | Model | Interface | Price | Mbps | Entropy | Hardware | Software |
|---|---|---|---|---|---|---|---|
| Nitrokey | Nitrokey HSM | USB | €59 | 0.024 | Closed | Mixed |