A Wi-Fi, media, and backup system with a built-in storage hard drive from Netgear, model Netgear Centria N900 (known for its integrated hard drive). It is used and in normal working condition, comes with a power adapter, has network and USB ports, and supports the 5G frequency. It does not take a SIM card, has a hard drive, and includes a small additional Wi-Fi router. Its original price was 1312 SAR. Description: It is a multi-functional device that combines a powerful Wi-Fi router, a Media Server, and an automatic backup system (NAS) simultaneously. Here are the comprehensive and detailed specifications of the device: 🌐 Network and Wi-Fi Specifications Wi-Fi Technology: Dual-Band WiFi, supports standards 802.11a/b/g/n. Total Speed: Up to 900 Mbps (N900) divided as follows: 2.4 GHz band: Up to 450 Mbps. 5 GHz band: Up to 450 Mbps. Signal Coverage: Optimized for large homes thanks to built-in radio signal amplifiers (WiFi Boost). 💻 Hardware and Technical Specifications Processor (CPU): AppliedMicro APM82181 processor at 1000 MHz (1 GHz) single-core. RAM: 256 MB. Flash Memory: 128 MB (NAND). Internal Storage Feature: Contains an internal bay that supports installing a 3.5-inch SATA hard drive to operate as a home storage server. Note: The WNDR4700 model comes without a hard drive (ready for installation), while the WNDR4720 model comes with a built-in 2 TB hard drive. 🔌 Ports & Connectivity Ethernet Ports: Five high-speed Gigabit ports (10/100/1000 Mbps): 1 WAN port to connect the primary modem. 4 LAN ports to connect wired devices like computers and gaming consoles. USB Ports: Features two SuperSpeed USB 3.0 ports for connecting printers or external hard drives. Memory Card Reader: Built-in SD Card slot allows for one-touch automatic backup of photos and videos. 🔒 Security Encryption: Supports WEP and WPA/WPA2-PSK Wi-Fi protection protocols. Firewall: Dual firewall for network protection (SPI and NAT firewall). Attack Prevention: Built-in system for preventing Denial of Service (DoS) attacks. 💻 Additional Features and Functions Automatic Backup: Fully compatible with ReadySHARE Vault for Windows and Apple Time Machine for Mac for continuous backup. DLNA Media Server: For sharing and streaming movies, music, and photos to smart TVs and network-connected gaming consoles. NETGEAR Genie Control Panel: An easy application for network management, monitoring, setting up parental controls, and guest networks. 📐 Physical Specifications Dimensions: 256 x 206 x 85 mm. Weight: 0.87 kg (excluding hard drive weight).