STACO3A StayAlive controller, special version of STACO1
1 x STACO3, 10x7.3x2 mm, for controlled charging and discharging of 2 mini gold caps, 2 soldered strands
2x Mini-Goldcap 0.3 F/2.7 V, 4 x 12 mm (diameter x length)

STACO3B StayAlive regulator, special version of STACO1
1 x STACO3, 10x7.3x2 mm, for controlled charging and discharging of 2 mini gold caps, 2 soldered strands
2x Mini-Goldcap 1 F/2.7 V, 6.4 x 9.8 mm (diameter x length)

The difference between the STACO variants:
STACO1: 10 x 7.3 x 1.7 mm
STACO2: 14 x 10.4 x 1.9 mm
STACO3: 10 x 7.3 x 2 mm
variants A and B refer to the enclosed capacitors only.
A: 0.3 F / 2.7 V
B: 1 F / 2.7 V