Fischer KEYSTONE™ 4 ports
Data & power hub
Empowering the connected soldier: Reliable power distribution, seamless connectivity,
and high adaptability for every operational challenge.
The Fischer KEYSTONE™ 4 tactical USB hub offers reliable performance without external software, efficiently managing power and data transfer.
The Fischer KEYSTONE™ 4 effectively reduces emissions and detection risks, meeting rigorous MIL-SPEC standards.
Featuring minimal thermal and EMI/EMC signatures, alongside optimized circuitry and a fully shielded enclosure, it guarantees operational discretion in the most challenging environments.
The Fischer KEYSTONE™ 4 tactical USB hub offers reliable performance without external software, efficiently managing power and data transfer.
The Fischer KEYSTONE™ 4 effectively reduces emissions and detection risks, meeting rigorous MIL-SPEC standards.
Featuring minimal thermal and EMI/EMC signatures, alongside optimized circuitry and a fully shielded enclosure, it guarantees operational discretion in the most challenging environments.
The Fischer KEYSTONE™ 4 tactical USB hub offers reliable performance without external software, efficiently managing power and data transfer.
The Fischer KEYSTONE™ 4 effectively reduces emissions and detection risks, meeting rigorous MIL-SPEC standards.
Featuring minimal thermal and EMI/EMC signatures, alongside optimized circuitry and a fully shielded enclosure, it guarantees operational discretion in the most challenging environments.
KEY FEATURES
- 4-port power and data hub
- IP68 2m/24h sealing
- Very compact and lightweight (125 g / 4.2 oz)
- Compatible with components and standards such as Nett Warrior, NATO STANAG 4695, 4851 and GOSSRA
- MIL-SPEC design
Configure your KEYSTONE solution — tailored to your mission and operational needs
Easily select your soldier-worn digital equipment from a wide range of commonly used devices. The configurator will automatically suggest the right cable assemblies or allow you to customize them to ensure perfect fit and seamless integration with your setup.
- Wide range of batteries supported
- Unregulated VBATT distribution between 10–20 V DC
- Input current up to 5 A
- Electrical fail-safe mechanisms on all ports
- Wide range of batteries supported
- Unregulated VBATT distribution between 10–20 V DC
- Input current up to 5 A
- Electrical fail-safe mechanisms on all ports
- Wide range of batteries supported
- Unregulated VBATT distribution between 10–20 V DC
- Input current up to 5 A
- Electrical fail-safe mechanisms on all ports
- USB devices powered by regulated 5 V Bus
- USB-C power delivery on EUD port
- Radio 5 V DC Power IN functionality on RADIO/BATT port
- Robust protection of 5 V Bus circuits
- USB devices powered by regulated 5 V Bus
- USB-C power delivery on EUD port
- Radio 5 V DC Power IN functionality on RADIO/BATT port
- Robust protection of 5 V Bus circuits
- USB devices powered by regulated 5 V Bus
- USB-C power delivery on EUD port
- Radio 5 V DC Power IN functionality on RADIO/BATT port
- Robust protection of 5 V Bus circuits
- EUD / HOST USB HUB upstream port
- PANs and RADIO / BATT USB downstream ports
- EUD / HOST USB HUB upstream port
- PANs and RADIO / BATT USB downstream ports
- EUD / HOST USB HUB upstream port
- PANs and RADIO / BATT USB downstream ports
| EUD / HOST | VBATT output power | Unregulated VBATT 10-20 V DC, up to 5 A |
| USB output power | Power delivery, charge up to 1.5 A | |
| PAN 1/2 | VBATT output power | Unregulated VBATT 10-20 V DC, up to 5 A |
| USB output power | Regulated 5 V DC, up to 2 A per port | |
| RADIO/BATT | VBATT input power | Unregulated VBATT 10-20 V DC, up to 5 A |
| USB input power | 5 V DC IN power supply | |
| Communication protocol | USB 2.0 | |
| Fault mode protection | Overcurrent, overvoltage and back-power | |
| EUD / HOST | VBATT output power | Unregulated VBATT 10-20 V DC, up to 5 A |
| USB output power | Power delivery, charge up to 1.5 A | |
| PAN 1/2 | VBATT output power | Unregulated VBATT 10-20 V DC, up to 5 A |
| USB output power | Regulated 5 V DC, up to 2 A per port | |
| RADIO/BATT | VBATT input power | Unregulated VBATT 10-20 V DC, up to 5 A |
| USB input power | 5 V DC IN power supply | |
| Communication protocol | USB 2.0 | |
| Fault mode protection | Overcurrent, overvoltage and back-power | |
| EUD / HOST | VBATT output power | Unregulated VBATT 10-20 V DC, up to 5 A |
| USB output power | Power delivery, charge up to 1.5 A | |
| PAN 1/2 | VBATT output power | Unregulated VBATT 10-20 V DC, up to 5 A |
| USB output power | Regulated 5 V DC, up to 2 A per port | |
| RADIO/BATT | VBATT input power | Unregulated VBATT 10-20 V DC, up to 5 A |
| USB input power | 5 V DC IN power supply | |
| Communication protocol | USB 2.0 | |
| Fault mode protection | Overcurrent, overvoltage and back-power | |
in millimeters / in inches
in millimeters / in inches
in millimeters / in inches
| Temperature |
Storage: -40 °C to +60 °C Operating: -32 °C to +55 °C |
MIL-STD-810G, Procedure I of Method 501 MIL-STD-810G, Procedure II of Method 501 |
| Altitude |
Storage: up to +12,192 m Operating: up to +9,754 m Rapid decompression: from 2,438 to 12,192 m |
MIL-STD-810G, Procedure I of Method 500 MIL-STD-810G, Procedure II of Method 500 MIL-STD-810G, Procedure III of Method 500 |
| Sealing | IP68 -2 m / 24 h | MIL-STD-810G, Procedure I of Method 512 |
| Shock | 40 G, 11 ms | MIL-STD-810G, Procedure I of Method 516 |
| Vibration | 7.7 Grms, 1 h per axis | MIL-STD-810G, Procedure I of Method 514.7 |
| Weather conditions |
Solar radiation Salt atmosphere Sand and dust Rain and water Fungus |
MIL-STD-810G, Method 505, Procedure I MIL-STD-810G, Method 509, Procedure I MIL-STD-810G, Method 510, Procedure I/II MIL-STD-810G, Method 506, Procedure I MIL-STD-810G, Method 508 |
| EMI / EMC |
CE101, CE102, CS101, CS114, CS115, CS116, RE101, RE102, RS101, RS103 |
MIL-STD-461G |
| Electrostatic Discharge ESD | CS118 Level IV | MIL-STD-461G |
| Compliance | CE, FCC, UKCA, RoHS and REACH standards | |
| Temperature |
Storage: -40 °C to +60 °C Operating: -32 °C to +55 °C |
MIL-STD-810G, Procedure I of Method 501 MIL-STD-810G, Procedure II of Method 501 |
| Altitude |
Storage: up to +12,192 m Operating: up to +9,754 m Rapid decompression: from 2,438 to 12,192 m |
MIL-STD-810G, Procedure I of Method 500 MIL-STD-810G, Procedure II of Method 500 MIL-STD-810G, Procedure III of Method 500 |
| Sealing | IP68 -2 m / 24 h | MIL-STD-810G, Procedure I of Method 512 |
| Shock | 40 G, 11 ms | MIL-STD-810G, Procedure I of Method 516 |
| Vibration | 7.7 Grms, 1 h per axis | MIL-STD-810G, Procedure I of Method 514.7 |
| Weather conditions |
Solar radiation Salt atmosphere Sand and dust Rain and water Fungus |
MIL-STD-810G, Method 505, Procedure I MIL-STD-810G, Method 509, Procedure I MIL-STD-810G, Method 510, Procedure I/II MIL-STD-810G, Method 506, Procedure I MIL-STD-810G, Method 508 |
| EMI / EMC |
CE101, CE102, CS101, CS114, CS115, CS116, RE101, RE102, RS101, RS103 |
MIL-STD-461G |
| Electrostatic Discharge ESD | CS118 Level IV | MIL-STD-461G |
| Compliance | CE, FCC, UKCA, RoHS and REACH standards | |
| Temperature |
Storage: -40 °C to +60 °C Operating: -32 °C to +55 °C |
MIL-STD-810G, Procedure I of Method 501 MIL-STD-810G, Procedure II of Method 501 |
| Altitude |
Storage: up to +12,192 m Operating: up to +9,754 m Rapid decompression: from 2,438 to 12,192 m |
MIL-STD-810G, Procedure I of Method 500 MIL-STD-810G, Procedure II of Method 500 MIL-STD-810G, Procedure III of Method 500 |
| Sealing | IP68 -2 m / 24 h | MIL-STD-810G, Procedure I of Method 512 |
| Shock | 40 G, 11 ms | MIL-STD-810G, Procedure I of Method 516 |
| Vibration | 7.7 Grms, 1 h per axis | MIL-STD-810G, Procedure I of Method 514.7 |
| Weather conditions |
Solar radiation Salt atmosphere Sand and dust Rain and water Fungus |
MIL-STD-810G, Method 505, Procedure I MIL-STD-810G, Method 509, Procedure I MIL-STD-810G, Method 510, Procedure I/II MIL-STD-810G, Method 506, Procedure I MIL-STD-810G, Method 508 |
| EMI / EMC |
CE101, CE102, CS101, CS114, CS115, CS116, RE101, RE102, RS101, RS103 |
MIL-STD-461G |
| Electrostatic Discharge ESD | CS118 Level IV | MIL-STD-461G |
| Compliance | CE, FCC, UKCA, RoHS and REACH standards | |
| Housing material | Aluminium |
| Standard colors | TAN 499 or BLACK |
| Weight | 125 g (4.2 oz) |
| MOLLE mounting | Removable (clip) |
| Pull force – pigtail cables | >100 lbs. (>450 N) |
| Housing material | Aluminium |
| Standard colors | TAN 499 or BLACK |
| Weight | 125 g (4.2 oz) |
| MOLLE mounting | Removable (clip) |
| Pull force – pigtail cables | >100 lbs. (>450 N) |
| Housing material | Aluminium |
| Standard colors | TAN 499 or BLACK |
| Weight | 125 g (4.2 oz) |
| MOLLE mounting | Removable (clip) |
| Pull force – pigtail cables | >100 lbs. (>450 N) |
The Fischer KEYSTONE™ MOLLE clips are available in three types to allow for maximum optimization of the warfighter’s tactical setup (Fischer KEYSTONE™ 4 only). All three types can be ordered separately.
| Orientation | Part number |
| Vertical | 226075 |
| Horizontal | 226411 |
| Belt (vertical) | 226412 |
The Fischer KEYSTONE™ MOLLE clips are available in three types to allow for maximum optimization of the warfighter’s tactical setup (Fischer KEYSTONE™ 4 only). All three types can be ordered separately.
| Orientation | Part number |
| Vertical | 226075 |
| Horizontal | 226411 |
| Belt (vertical) | 226412 |
The Fischer KEYSTONE™ MOLLE clips are available in three types to allow for maximum optimization of the warfighter’s tactical setup (Fischer KEYSTONE™ 4 only). All three types can be ordered separately.
| Orientation | Part number |
| Vertical | 226075 |
| Horizontal | 226411 |
| Belt (vertical) | 226412 |
Cable assemblies and connectors
A complete range of high-performance cable assemblies is available to interconnect soldier-worn devices and digital equipment, supporting both standard Nett Warrior systems and specific military requirements through customization.
Cable assemblies and connectors
A complete range of high-performance cable assemblies is available to interconnect soldier-worn devices and digital equipment, supporting both standard Nett Warrior systems and specific military requirements through customization.
Cable assemblies and connectors
A complete range of high-performance cable assemblies is available to interconnect soldier-worn devices and digital equipment, supporting both standard Nett Warrior systems and specific military requirements through customization.