Overview
Raspberry Pi Zero 2 W with Pre-Soldered Black Pin Header. At the heart of Raspberry Pi Zero 2 W is RP3A0, a custom-built system-in-package designed by Raspberry Pi in the UK. With a quad-core 64-bit ARM Cortex-A53 processor clocked at 1GHz and 512MB of SDRAM, Zero 2 is up to five times as fast as the original Raspberry Pi Zero.
As for heat dissipation concern, Zero 2 W uses thick internal copper layers to conduct heat away from the processor, sustaining higher performance without higher temperature.

Features
(1) Broadcom BCM2710A1, 1GHz quad-core 64-bit Arm Cortex-A53 CPU
(2) 512MB LPDDR2 SDRAM
(3) 2.4GHz 802.11 b/g/n LAN
(4) Blue-too-th 4.2, Blue-too-th Low Energy (BLE), onboard antenna
(5) Mini HDMI port and micro USB On-The-Go (OTG) port
(6) microSD card slot
(7) CSI-2 camera connector
(8) HAT-compatible 40-pin header footprint (unpopulated)
(9) Micro USB power
(10) Composite video and reset pins via solder test points
(11) H.264, MPEG-4 decode (1080p30); H.264 encode (1080p30)
(12) OpenGL ES 1.1, 2.0 graphics

Specification
Processor: BCM2710A1
CPU: 1GHz ARM Cortex-A53 64-bit quad-core
GPU: VideoCore IV GPU, OpenGL ES 1.1, 2.0
Memory : 512 MB LPDDR2 SDRAM
W-I-F-I: 2.4GHz IEEE 802.11b/g/n
Blue-too-th: Blue-too-th 4.2, BLE, onboard antenna
Video: Mini HDMI port, supports PAL and NTSC standard, supports HDMI (1.3 and 1.4), 640 × 350 to 1920 × 1200 pixels
Camera: CSI-2 connector
USB: micro USB On-The-Go (OTG) connector, supports USB HUB expansion
GPIO: Raspberry Pi 40 Pin GPIO footprint
SLOT: Micro SD card slot
POWER: 5V, via Micro USB or GPIO

Package Content
Pi Zero 2 W with Pre-Soldered Header
Mini HDMI to HDMI Adapter ×1
Micro USB OTG Cable ×1