HARDWARE / PRODUCTUpdated 25 Jul 2026

1U – 3U Platform

Spacemanic s.r.o.
Spacecraft up to 4 kg · Nano class (FAA) what this means
1U – 3U Platform

Modular CubeSat platform available in 1U, 2U and 3U configurations, offering payload volume up to 2U, payload mass up to 4 kg, and multiple RF and data interface options for missions from first-time tech demos to more demanding payloads.

Typed specifications103 values

Discloses 5 of 7 fields engineers filter by in this category (category median 3).

Mass
1 kg
product page 2.5 kg  |  4 kg
Form factor, U (number)
2 U
datasheet p.2 3 U
Power consumption
23 W
product page 48 W  |  48 W
Data interface
RS-485
datasheet p.2 RS-422 1x RS422 CSP v1 (optional)  |  other ADC  |  other ADC, PWM - possible extension through CDHS  |  other GPIO  +13
Design lifetime
5 years
datasheet p.3 5 years max · design lifetime up to 5 years  |  5 years max · design lifetime, up to
Form factor
1U
datasheet p.2 2U  |  3U
Max payload mass
500 kg
max · 1U, AOCS · datasheet p.2 1 kg max · 1U, no AOCS  |  500 kg max · 1U, with AOCS  |  2 kg max · 2U, AOCS  |  2.5 kg max · 2U, no AOCS  +4
Payload volume, U
0.25 U
1U, AOCS · datasheet p.2 0.5 U 1U, no AOCS  |  0.25 U 1U, with AOCS  |  1.25 U 2U, AOCS  |  1 U 2U, AOCS & S Band  +13
Power available to payload
9.8 W
max · 1U, available power per PSU channel @5V · datasheet p.2 48 W max · 2U-16U columns, available power per PSU channel @ 12 V  |  48 W max · peak, available power per PSU channel @ 12 V (2U | 3U)  |  9.8 W max · peak, available power per PSU channel @ 5 V (1U)
Regulated voltages for the payload
3.3 V
1U: 1x reg. 3.3 V + 4x configurable 3.3/5 V, max. 1.8 A per c… · datasheet p.2 5 V 1U: 1x reg. 5 V + 4x configurable 3.3/5 V, max. 1.8 A per cha…  |  3.3 V 1U: 1x regulated 3.3 V, plus 4x configurable regulated channe…  |  5 V 1U: 1x regulated 5 V, plus 4x configurable regulated channels…  |  3.3 V 2U | 3U: 6x configurable regulated channels 3.3/5/12 V and 3x…  +5
Unregulated bus for the payload
6.8–8.4 V
1U: 1x unreg. VBat. · datasheet p.2 6.8–8.4 V 1U: 1x unregulated VBat, 6.8 – 8.4 V  |  13.6–16.8 V 2U | 3U: 1x unregulated VBat, 13.6 – 16.8 V  |  13.6–16.8 V 2U|3U: 1x unreg. VBat.
Battery capacity
46 Wh
nom. · 2U | 3U baseline, 4 cells; possible increase based on availab… · datasheet p.2 23 Wh max · 1U, 2 cells
Payload data downlink rate
19.2 kbps
max · UHF / VHF up/down baseline, 9600/19200 bps (1U, 2U | 3U) · datasheet p.3 250–512 kbps S-band downlink 2200 – 2290 MHz, optional for 2U | 3U
Radio band
VHF
baseline option: VHF Amateur 144 – 146 MHz · datasheet p.3 UHF baseline: UHF Amateur 430 – 440 MHz or UHF Commercial 400 – 4…  |  S optional for 2U | 3U: down 2200 – 2290 MHz, up 2025 – 2110 MHz
Subsystems included
ADCS
1U optional (3x MTQ, magnetometer, gyroscope); 2U|3U baseline… · datasheet p.3 battery 1U up to 23 Wh; 2U|3U baseline 46 Wh  |  battery 1U: 2 cells; 2U | 3U: 4 cells  |  S-band radio 2U|3U optional  |  ADCS AOCS optional for 1U (3x MTQ, magnetometer, 3x gyroscope); ba…  +7
Max satellite wet mass
500 g
AOCS · datasheet p.2 1 kg No AOCS  |  2 kg AOCS  |  2.5 kg No AOCS  |  3.5 kg AOCS  +1
Satellite class
CubeSat
datasheet p.0

Each value is typed with its unit and measurement condition and cites the datasheet page it was taken from. Nothing is guessed: a field that is absent here has not been published by the manufacturer. machine-extracted ✓ checked by NewSpace Market ✓ manufacturer confirmed by the manufacturer.

As published by the supplier18 lines, in the manufacturer's own wording
Payload volume (max) — 1u
0.5U
Payload mass (max) — 1u
1 kg
Available power per psu channel (max) — 1u
23 Wh
Power output — 1u
3.3 V, 5 V
Communication (options) — 1u
5 V, UHF, VHF
Data interface (CSP v1) — 1u
I2C, RS-485, CAN
Payload volume (max) — 2u
1.5U
Payload mass (max) — 2u
2.5 kg
Available power per psu channel (max) — 2u
48 Wh
Power output — 2u
3.3 V, 5 V, 12 V
Communication (options) — 2u
5 V, 12 V, UHF, VHF, S-Band, L-Band
Data interface (CSP v1) — 2u
I2C, RS-485, CAN
Payload volume (max) — 3u
2U
Payload mass (max) — 3u
4 kg
Available power per psu channel (max) — 3u
48 Wh
Power output — 3u
3.3 V, 5 V, 12 V
Communication (options) — 3u
5 V, 12 V, UHF, VHF, S-Band, L-Band
Data interface (CSP v1) — 3u
I2C, RS-485, CAN

About

The 1U – 3U Platform is Spacemanic’s modular CubeSat bus, offered starting from 110 000 €, intended for first-time missions, technology demonstrations, and general small satellite work, marketed with extensive flight heritage and quick turnaround times. It is available in three scalable configurations — 1U, 2U and 3U — each defining maximum payload volume, maximum payload mass, available power per PSU channel, power output rails, communication (RF) options, and onboard data interface. The 1U configuration provides up to 0.5U of payload volume, 1 kg of payload mass, and 23 Wh of available power per PSU channel, with UHF/VHF communication options. The 2U configuration provides up to 1.5U of payload volume, 2.5 kg of payload mass, and 48 Wh of available power per PSU channel, adding S-Band and L-Band communication options. The 3U configuration provides up to 2U of payload volume, 4 kg of payload mass, and 48 Wh of available power per PSU channel, also with UHF/VHF, S-Band and L-Band communication options. Power output rails scale from 3.3 V/5 V (1U) to 3.3 V/5 V/12 V (2U and 3U). All configurations share a CSP v1 data interface with I2C, RS-485 and CAN bus support for onboard communication between subsystems and payloads.

Documentation

Need the full ICD, test reports or a specific revision? Ask the supplier directly.

Source: spacemanic.com ↗

The rest of the range from Spacemanic s.r.o.

All 14 products →

OBC & Avionics 3

Power Systems 2

ADCS & Navigation 2

Satellite Platforms 1

Communications 1

Solar Panels & Arrays 1

Antennas 1