Daystar Quark USB Power Extension Cable

The Daystar Quark requires consistent, stable power to keep its internal etalon at the precise temperature for on-band viewing. This cable is built with heavy 24 AWG shielded wire to prevent voltage drop over its 10 ft length, a problem that causes generic cables to fail and your Quark to drift off-band.

It might work intermittently, but it is not recommended. Most consumer-grade 10 ft USB cables use very thin wire and lack proper shielding, leading to significant voltage drop. This can prevent the Quark from reaching or holding its operating temperature, resulting in a poor or nonexistent solar view.

The 2.1 AMP rating means the cable is designed to safely handle the current from modern high-output USB power banks and chargers. Using a power source rated for at least 2.1 Amps with this cable ensures the Quark receives sufficient power to heat up quickly and remain stable.

Yes. While designed for the Quark, this is a high-quality USB 2.0 A Male to Micro B cable. It can be used to reliably power any astronomy accessory with a Micro B port that requires stable 5V power, such as a dew heater controller or a small camera.

The 10 ft length provides crucial flexibility at the telescope. It allows you to place your power bank on the ground or an accessory tray, away from the optical tube, preventing the weight of the battery from affecting the mount's balance. It also reduces the risk of snagging a short cable while the telescope is slewing.

With an unstable power supply from a generic cable, the Quark's heater may cycle improperly. This would cause the view of a solar prominence to flicker, fade, or disappear entirely as the filter drifts off the H-alpha bandpass. The robust 24 AWG construction of the official Daystar cable prevents this issue.