The invention relates generally to wearable accessory carriers for mechanical circulatory support systems, and more specifically relates to belts for carrying peripheral components of a VAD. Such wearable accessory carriers may be suitable for carrying and retaining peripheral components of the VAD in a safe, comfortable, and convenient manner. In certain aspects, the invention provides a wearable accessory carrier configured as an elastic belt with several pockets for holding peripheral components. In other aspects, a wearable accessory carrier may be configured as a belt with a magnetic strip configured to carry one or more modular compartments or pockets for holding peripheral components via magnetic attachment. The wearable accessory carriers disclosed herein may be sized to fit around or configured to be worn on a patient's waist, lower or upper torso, thigh, calf, arm, or other limb.