Protective covers and cases for handheld electronic devices, namely, cell phones, portable media players, tablets, personal digital assistants, e-book readers, and computers; protective covers and cases for computers; computer peripherals and parts thereof; carrying cases, holders, protective cases and stands featuring power supply connectors, adaptors, speakers and battery charging devices, specially adapted for use with handheld digital electronic devices, namely, for computers, laptops, mobile phones, mp3 players, smartphones, tablet computers, notebook computers, and network connection devices; electrical and electronic cabling, connectors, connectivity products and wireless transmission and networking products, namely, connection cables and wireless routers; battery charging and electrical power management devices for computers and home appliance, namely, battery chargers; Video and audio accessories, namely, signal splitters, couplers, and cable connectors; audio and video electricity distribution power consoles; audio and video power and signal filters; electronic switching consoles; signal boosters; computer network hubs, routers and switches; electrical and electronic connectors; connection cables; electronic cables; power wires; telephone wires; digital transmission wires and cables; electrical and electronic plugs; converters; TV and video converters; cable adapters and switches; video transmitters, receivers for audio and video and remote controllers for radios, televisions, stereos; modular electrical, electronic and telephone plugs; coaxial cable, cable adapter plugs; cable splitters; cable connectors; electronic switches; electrical switches; surge protectors; computer cables; computer cable plugs and connectors; electrical voltage suppressors; ribbon extension cables; computer cooling fans; television/computer switches; modems and modem connectors, hubs and adaptors; audio/stereo accessories, namely, stereo cables; headphones; headphone extension cables; stereo plugs and adapters; stereo/mono adapter cables; stereo headphone cords; alternating current adapters; direct current adapters; audio cables; speaker wires and speaker cables; electricity converters and plugs; data transfer switch boxes, computer peripheral sharing devices for enabling a plurality of computers to have shared access to an accessory device or devices such as a printer; computer peripheral sharing devices for enabling a single computer to simultaneously display output on multiple monitors; electrical surge protectors; mouse pads; computer wrist rests; computer mouse wrist rests; computer peripheral devices for permitting wireless transmission of data from computers to peripheral devices and from computer to computer; carrying cases for storing and transporting portable computers and personal data assistants; PCI hardware cards; network interface cards; USB and Ethernet adapters, connectors, controllers, switches, cables and plugs; extension cords; extension cables; mobile power cords; mobile phone and cell phone cases; keyboards; keypads; plug adapters; plug connectors; plug-in connectors; power controllers; power switches; power line transmission machines and apparatus; printer cables; printer hubs; racks and enclosures for computer hardware, computer game mouse; rechargers for portable digital listening devices, portable media players, computers, laptops, cellular phones and mobile phones; wireless transmitters and computer peripherals; uninterruptible power supplies; radio frequency transmitters; telecommunications transmitters; telephone headsets; television transmitters; USB operating software; video transmission apparatus; voltage regulators; voltage stabilizers; voltage stabilizing power supplies; wireless telephony apparatus; wrist rests for use with computers; cables and fibers for the transmission of sounds and images; cables for electrical or optical signal transmission; card reading equipment; computer cursor control devices, namely, computer mouse; converters; computer peripherals; computer networking hubs and switches; computer hardware; computer cases; computer stands; e-reader cases; bags adapted for laptops; protective sleeves for laptop computers