Scientific; laptop computers; computer hardware; hard disk transfer frame; couplers [data processing equipment]; computer keyboards; mouse [computer peripheral]; mouse pads; wires, electric; microphones; horns for loudspeakers; earphones; materials for electricity mains [wires, cables]; computer case; mobile or wireless device accessories, namely, power bank battery charger, portable power bank battery charger, portable solar powered battery charger, dual USB car charger for batteries; transformers [electricity]; computer power supplies; uninterrupted power supplies; batteries, electric; heat sinks for use in computers; Central Processing Unit (CPU) coolers; heat sinks for use in graphics cards; liquid cooling systems for computers, comprised of water cooled computer heat sinks, pumps, radiators, liquid supply mechanisms in the nature of tanks, reservoir fans and cooling blocks and parts and fittings all for computer peripheral devices; liquid cooling system for Central Processing Unit (CPU); liquid cooling system for graphics card; internal and external cooling fans for computers; Central Processing Unit (CPU) cooling fans; cooling fans for graphics card; cooling fans for computer case; laptop computer cooling pads; electronic publications, downloadable; smartphones; headphones.