---
id: physical-specs
title: "Physical Specifications"
status: established
source_sections: "Web research: Dell product page, WCCFTech, NVIDIA DGX Spark User Guide, Jeff Geerling, ServeTheHome"
related_topics: [connectivity, gb10-superchip, skus-and-pricing]
key_equations: [volume-calculation]
key_terms: [form-factor, micro-desktop, usb-c-psu, tdp]
images: []
examples: []
open_questions:
  - "VESA mount compatibility"
  - "Exact heatsink dimensions and material"
---

# Physical Specifications

The Dell Pro Max GB10 is an ultra-compact mini desktop designed to sit on or near a desk.

## 1. Dimensions and Weight

| Spec          | Dell Pro Max GB10          | DGX Spark (reference)      |
|---------------|----------------------------|----------------------------|
| Width         | 150 mm (5.9 in)            | 150 mm                     |
| Depth         | 150 mm (5.9 in)            | 150 mm                     |
| Height (peak) | 51 mm (2.0 in)             | 50.5 mm                    |
| Height (front/rear) | 45.5 mm (1.8 in)    | —                          |
| Volume        | ~1.15 liters               | ~1.14 liters               |
| Weight (min)  | 1.22 kg (2.69 lbs)         | 1.2 kg (2.6 lbs)           |
| Weight (max)  | 1.34 kg (2.96 lbs)         | —                          |

**Regulatory model:** D21U / D21U001 (Dell)

For reference, the footprint is roughly the size of a large coaster or small book.

## 2. Power Supply

| Parameter       | Dell Pro Max GB10 | DGX Spark     |
|-----------------|-------------------|---------------|
| PSU wattage     | 280W              | 240W          |
| Connection      | USB-C PD          | USB-C PD      |
| GPU TDP         | 140W              | 140W          |

The Dell PSU is 40W higher than the reference DGX Spark, providing extra headroom for QSFP optics and peripherals.

### Dell 280W Power Adapter Details (T0 Spec, Dell Owner's Manual)

| Parameter          | Value                                        |
|--------------------|----------------------------------------------|
| Dimensions         | 23 x 78 x 162 mm (0.91 x 3.07 x 6.38 in)   |
| Input voltage      | 100-240 VAC (also 200-240 VAC)               |
| Input frequency    | 50-60 Hz                                     |
| Input current (max)| 2A / 4A                                      |
| Output voltages    | 48V, 36V, 28V, 20V, 15V, 9V, 5V             |
| Max output         | 48V/5.83A, 36V/5.83A, 28V/5.89A, 20V/6.50A  |

### Power Button

Located on the rear panel. Press to turn on. **Press and hold 4 seconds** to force shut down. (T0 Spec, Dell Owner's Manual)

### Power Draw by Workload (T2 Benchmarked)

| State              | Power Draw   | Source          |
|--------------------|-------------|-----------------|
| Idle               | ~30W        | Jeff Geerling   |
| AI inference (LLM) | 60-90W      | ServeTheHome    |
| CPU-only load      | 120-140W    | Jeff Geerling / STH |
| CPU + GPU load     | ~200W       | ServeTheHome    |

## 3. Cooling

- **Design:** Dual-fan setup with dense heatsink (T2, reviews)
- **Airflow:** Front-to-back (Dell design is less restricted than DGX Spark)
- **Noise:** Never exceeded 40 dB at 1-1.5m during non-stress testing (T2, ServeTheHome)
- **Dell advantage:** Quieter than reference DGX Spark design; capable of keeping GB10 from thermal throttling (T2, Jeff Geerling)
- **Front panel:** Hard foam-like material allowing airflow intake
- **Bottom panel:** Large vent with rubber pad for desk stability; magnetically attached, reveals Wi-Fi antenna and system information underneath

## 4. Environmental Specifications

Dell and NVIDIA specs differ slightly. Dell's are from the Owner's Manual (T0 Spec); NVIDIA's from the DGX Spark User Guide.

| Parameter              | Dell Pro Max (T0)                  | DGX Spark (T0)                  |
|------------------------|------------------------------------|---------------------------------|
| Operating temperature  | 0°C to 35°C (32°F to 95°F)        | 5°C to 30°C (41°F to 86°F)     |
| Storage temperature    | -40°C to 65°C (-40°F to 149°F)    | —                               |
| Operating humidity     | 10% to 90% (non-condensing)        | 10% to 90% (non-condensing)    |
| Storage humidity       | 0% to 95% (non-condensing)         | —                               |
| Operating altitude     | -15.2 m to 3,048 m (-50 to 10,000 ft) | Up to 3,000 m (9,843 ft)  |
| Storage altitude       | -15.2 m to 10,668 m (-50 to 35,000 ft) | —                         |
| Operating vibration    | 0.66 GRMS                          | —                               |
| Storage vibration      | 1.30 GRMS                          | —                               |
| Operating shock        | 110 G (2ms half-sine)              | —                               |
| Storage shock          | 160 G (2ms half-sine)              | —                               |
| Airborne contaminants  | G1 per ISA-S71.04-1985             | —                               |

**Note:** Dell's operating temp range (0-35°C) is wider than NVIDIA's (5-30°C). The Dell spec may reflect the Dell chassis thermal design improvements.

### Power Adapter Environmental

| Parameter              | Value                              |
|------------------------|------------------------------------|
| Operating temperature  | 0°C to 35°C (32°F to 95°F)        |
| Storage temperature    | -40°C to 70°C (-40°F to 158°F)    |

## 5. Form Factor

- **Classification:** Micro desktop / Mini PC / SFF (Small Form Factor)
- **Design:** Stackable (for [[multi-unit-stacking]])
- **Chassis:** Compact rectangular enclosure (gold-colored metal on DGX Spark)
- **Portability:** Fits in carry-on luggage or backpack (T2, ServeTheHome)

## 6. Scale Comparison

| Compared to...          | Dell Pro Max GB10          |
|-------------------------|----------------------------|
| Mac Mini M4 Pro         | Similar footprint, thinner |
| NVIDIA DGX Spark        | Same SoC, lighter, smaller PSU |
| Traditional desktop     | ~20x smaller by volume     |
| Laptop                  | Comparable weight           |

## Key Relationships

- Houses: [[gb10-superchip]]
- External ports: [[connectivity]]
- Stacking design: [[multi-unit-stacking]]
- Pricing: [[skus-and-pricing]]