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Raspberry 3 Model B + Board 1.4GHz 64-bit quad-core ARM Cortex-A53 CPU with WiFi&Bluetooth - AliExpress
ARM Cortex-A53 - Wikipedia
ARM's Cortex A53: Tiny But Important – Chips and Cheese
ARM's Cortex A57 and Cortex A53: The First 64-bit ARMv8 CPU Cores
ARM's Cortex A57 and Cortex A53: The First 64-bit ARMv8 CPU Cores
Allwinner launches $5 quad-core 64-bit processor for tablets
Raspberry 3 Model B + Board 1.4GHz 64-bit quad-core ARM Cortex-A53 CPU with WiFi&Bluetooth - AliExpress
In-Depth: Understanding the Cortex A53 on Mobile SoCs - Pixel Spot
Rockchip Introduces RK3368 Octa Core Cortex A53 SoC for Tablets and 4K TV Box - CNX Software
Raspberry Pi Zero 2 W Development Board with 1GHz Quad-Core 64-Bit Cortex-A53 Processor 512MB of Sdram Bt 4.2 - China Raspberry Pi, Raspberry Pi Zero 2 W | Made-in-China.com
SoMs and SBCs Based on Quad-core Cortex-A53 Processor - Forlinx Company News - Forlinx Embedded Technology Co., Ltd.
AArch64 - Wikipedia
ARM's Cortex A57 and Cortex A53: The First 64-bit ARMv8 CPU Cores