Raspberry Pi Model A+ development board 1400 MHz BCM2837B0

1.4GHz 64-bit quad-core processor, dual-band wireless LAN, Bluetooth 4.2/BLE in the same mechanical format as the Raspberry Pi 1 Model A+Raspberry Pi Model A+. Processor frequency: 1400 MHz, Processor model: BCM2837B0. Maximum internal memory: 0.512 GB, Internal memory type: DDR2-SDRAM, Compatible memory cards: MicroSD (TransFlash). Wi-Fi standards: 802.11b, 802.11g, Wi-Fi 4 (802.11n), Wi-Fi 5 (802.11ac). Certification: CE. DC input voltage: 5 V