Bluetooth is a proprietary open wireless technology standard for exchanging data over short distances (using short-wavelength radio transmissions in the ISM band from 2400–2480 MHz) from fixed and mobile devices, creating personal area networks (PANs) with high levels of security. Y ENERGY STAR® is the government-backed symbol for energy efficiency, providing simple, credible, and unbiased information that consumers and businesses rely on to make well-informed decisions. ENERGY STAR is the simple choice for energy efficiency, making it easy for consumers and businesses to purchase products that save them money and protect the environment. ENERGY STAR Legacy Intel® Core™ Processor Intel Core i3-xxx Numeric keyboard Y Hard Drive HDD HDMI 1 DIRECTIVE (EU) 2022/2380 OF THE EUROPEAN PARLIAMENT AND OF THE COUNCIL of 23 November 2022 (Part III) y HP ProBook 4520s, Intel® Core™ i3, 2.53 GHz, 15.6", 1366 x 768 pixels, 4 GB, 640 GB HP ProBook 4520s. Processor family: Intel® Core™ i3, Processor model: i3-380M, Processor frequency: 2.53 GHz. Display diagonal: 15.6", Display resolution: 1366 x 768 pixels. Internal memory: 4 GB, Internal memory type: DDR3-SDRAM. Total storage capacity: 640 GB, Storage media: HDD, Optical drive type: DVD±RW. On-board graphics card model: Intel® HD Graphics, Discrete graphics card model: AMD Mobility Radeon HD 4350. Operating system installed: Windows 7 Professional. Product color: Black. Weight: 5.27 lbs (2.39 kg) https://www.itp.net/583853-hp-probook-4520s The ProBook 4520s comes from HP's ‘Business Laptop and Tablet PC' line. The company says the machine packs the perfect punch for ‘on-the-go professionals'. Retailing for US $694 the HP won't put an Everest-sized hole in your wallet and, when we examine... With its aggressive price tag, stylish looks and reasonable everyday application prowess the HP ProBook 4520s is worth looking up if you’re on a tight budget. ... https://www.pcworld.com/article/200716/HP_probook_4520s.html Weighing in at just under 6 pounds sans power brick, the new HP ProBook 4520s feels solid and sturdy enough to bear the brunt of your daily commute. Improving on the plastic chassis from last year's 4510s series, HP doesn't aim this business laptop at ... Impressive suite of HP security software, Comfortable ergonomic design for long work sessions Shoddy integrated Webcam, Mediocre battery life The ProBook 4520s is a sturdy, stylish business laptop that performs well at work or on the go. Shop for the ProBook 4520s MerchantPriceMerchant Rating $785.99 Learn More » 5 Reviews » California Computer Center $765.00 Learn More » 4 Reviews » $819.... http://www.notebookreview.com/notebookreview/hp-probook-4520s-review/ The HP ProBook 4520s is a small and medium business notebook that replaces the older 4510s from last year. The new model bumps the configuration from the older Intel Core 2 Duo family of processors to the newer Intel Core line, including the Core i3... Great keyboard, Very good performance, Good looks and build quality, Frustrating touchpad, Smaller battery than previous model, The HP ProBook 4520s offers many improvements from the previous Core 2 Duo-based 4510s. The metal exterior cladding improves looks over the older plastic finish and gives the body a stronger feel. Inside, the brushed metal surface is used above and below the keyboard. Another change is the Synaptics ClickPad which offers a spacious flush-mount touch surface at the expense of integrating the left https://www.computershopper.com/laptops/reviews/hp-probook-4520s For mobile professionals who subject their notebooks to more wear and tear than the average user, the metal-clad HP ProBook 4520s is ready to take some licks. This durable notebook offers Core i5 computing power and a striking 15.6-inch displ... Solid build quality, Affordably priced, Lots of useful business features Integrated graphics, Skittish touch pad, Short battery life This $799 ProBook is loaded with handy tools for mobile pros and is more durable than the average notebook. (Just be mindful of its finicky touch pad and short battery life.) ... http://www.toptenreviews.com/computers/laptops/best-business-laptops/hp-probook-review/ Hewlett Packard has been an innovator in electronics since the Great Depression. In the nearly 80 years since its inception, the company has grown from a one-car garage operation into a multinational corporation operating in nearly every nation on eart... Ample real estate on the keyboard and screen provide a comfortable mobile workspace, We found the sensitive track pad a bit more difficult to use than a traditional mouse. A tasteful and utilitarian design plus speedy performance make it a fine choice....