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 Wi-Fi CERTIFIED™ is an internationally-recognized seal of approval for products indicating that they have met industry-agreed standards for interoperability, security, and a range of application specific protocols. Wi-Fi CERTIFIED products have undergone rigorous testing by one of our independent Authorized Test Laboratories. When a product successfully passes testing, the manufacturer or vendor is granted the right to use the Wi-Fi CERTIFIED logo. Certification means that a product has been tested in numerous configurations with a diverse sampling of other devices to validate interoperability with other Wi-Fi CERTIFIED equipment operating in the same frequency band. Certification is available for a wide range of consumer, enterprise, and operator-specific products, including smartphones, appliances, computers and peripherals, networking infrastructure, and consumer electronics. At retail, the Wi-Fi CERTIFIED logo gives consumers confidence that a product will deliver a good user experience. Service providers and enterprise IT managers specify Wi-Fi CERTIFIED to reduce support costs and ensure a product has met industry-agreed requirements. Y Legacy Intel® Core™ Processor Intel Core i3-xxx 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, 2,4 جيغاهرتز, 39,6 سم (15.6"), 1366 x 768 بيكسل, 2 جيغابايت, 250 جيغابايت HP ProBook 4520S. فئة المعالج: Intel® Core™ i3, طراز المعالج: i3-370M, ترددات المعالج: 2,4 جيغاهرتز. قطر الشاشة: 39,6 سم (15.6"), وضوح العرض: 1366 x 768 بيكسل. الذاكرة الداخلية: 2 جيغابايت, نوع الذاكرة الداخلية: DDR3-SDRAM. سعة التخزين الاجمالية: 250 جيغابايت, نوع محرك الأقراص الضوئية: سوبر مالتي DVD مزدوج الطبقات. طراز موائم الرسوميات المدمج: Intel® HD Graphics, طراز موائم الرسوميات المخبأ: Intel® HD Graphics. نظام التشغيل المثبت: Windows 7 Professional. الوزن: 2,39 كيلو غرام