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Raspberry Pi Zero 2 W specs, pinout & datasheets

Single-board computer · Raspberry Pi · Released October 2021

The Zero form factor with a quad-core 64-bit RP3A0 system-in-package: Pi 3-class performance for $15.

Raspberry Pi Zero 2 W
Photo: Anil Öztas, CC BY 4.0, via Wikimedia Commons
CPU
4 × Cortex-A53 (ARMv8, 64-bit)
Clock
1 GHz
RAM
512 MB
Storage
microSD card
Wireless
2.4 GHz 802.11n Wi-Fi; Bluetooth 4.2 and BLE
I/O voltage
3.3 V
Released
October 2021
Status
In production

Specs checked against the cited sources on 1 October 2026 (AI-assisted source check). Spotted a mistake? Use the form at the end of the page.

Specifications

14 specs
Chip / SoC
Raspberry Pi RP3A0 (BCM2710A1 die plus 512 MB RAM in one package)[2]
CPU
4 × Cortex-A53 (ARMv8, 64-bit)[2]
Clock
1 GHz[2]
RAM
512 MB[1]
Storage
microSD card[1]
GPIO
40-pin header, unpopulated (or pre-soldered "with headers")[1]
I/O voltage
3.3 V[3]
Input voltage
5 V via micro-USB[1]
Wireless
2.4 GHz 802.11n Wi-Fi; Bluetooth 4.2 and BLE[1]
USB
1 × micro-USB OTG (plus a micro-USB power port)[5]
Video
Mini HDMI[1]
Expansion
CSI camera connector[1]
Dimensions
65 × 30 mm[6]
Launch price
US$15[5]

Can I still use it?

5 platforms
Raspberry Pi OS
Supported[7]32-bit and 64-bit images.
Mainline Linux
Supported[11]A device tree for this board is in the mainline kernel; features may still be missing.
Armbian
Supported[10]Supported by Armbian.
CircuitPython
Supported[9]
Zephyr RTOS
Supported[8]

As published by each project, checked weekly. A platform not listed has no published information here, which is not the same as no support.

Datasheets and documents

3 documents

Pinout

40 pins
Raspberry Pi 40-pin GPIO header pinout diagramJ8 (40-pin GPIO)13V325V3GPIO245V5GPIO36GND7GPIO48GPIO149GND10GPIO1511GPIO1712GPIO1813GPIO2714GND15GPIO2216GPIO23173V318GPIO2419GPIO1020GND21GPIO922GPIO2523GPIO1124GPIO825GND26GPIO727ID_SD28ID_SC29GPIO530GND31GPIO632GPIO1233GPIO1334GND35GPIO1936GPIO1637GPIO2638GPIO2039GND40GPIO21
Raspberry Pi 40-pin GPIO header[3]
  • Power
  • Ground
  • GPIO
  • Special
  • Not connected
Pin table (40 pins)
J8 (40-pin GPIO)
PinLabelKindFunctions
13V3Power
25VPower
3GPIO2GPIOI2C1 SDA
45VPower
5GPIO3GPIOI2C1 SCL
6GNDGround
7GPIO4GPIOGPCLK0
8GPIO14GPIOUART TXD
9GNDGround
10GPIO15GPIOUART RXD
11GPIO17GPIO
12GPIO18GPIOPCM CLK, PWM0
13GPIO27GPIO
14GNDGround
15GPIO22GPIO
16GPIO23GPIO
173V3Power
18GPIO24GPIO
19GPIO10GPIOSPI0 MOSI
20GNDGround
21GPIO9GPIOSPI0 MISO
22GPIO25GPIO
23GPIO11GPIOSPI0 SCLK
24GPIO8GPIOSPI0 CE0
25GNDGround
26GPIO7GPIOSPI0 CE1
27ID_SDSpecialGPIO0, HAT EEPROM I2C SDA
28ID_SCSpecialGPIO1, HAT EEPROM I2C SCL
29GPIO5GPIO
30GNDGround
31GPIO6GPIO
32GPIO12GPIOPWM0
33GPIO13GPIOPWM1
34GNDGround
35GPIO19GPIOPCM FS, SPI1 MISO
36GPIO16GPIOSPI1 CE2
37GPIO26GPIO
38GPIO20GPIOPCM DIN, SPI1 MOSI
39GNDGround
40GPIO21GPIOPCM DOUT, SPI1 SCLK

Gotchas

2 known issues
  • 3.3 V only. The GPIO pins are 3.3 V. Do not connect 5 V signals or components to them.[3]
  • Little current per pin. Each GPIO pin can supply up to about 16 mA and all pins together about 50 mA; drive motors and other loads through a transistor or driver board.[4]

What changed

From the specs

Since the Raspberry Pi Zero W

SpecRaspberry Pi Zero WRaspberry Pi Zero 2 W
Chip / SoCBroadcom BCM2835Raspberry Pi RP3A0 (BCM2710A1 die plus 512 MB RAM in one package)
CPUArm1176JZF-S (ARMv6), single core4 × Cortex-A53 (ARMv8, 64-bit)
GPIO40-pin header (pre-soldered on the WH)40-pin header, unpopulated (or pre-soldered "with headers")
Wireless2.4 GHz 802.11n Wi-Fi; Bluetooth 4.1 and BLE2.4 GHz 802.11n Wi-Fi; Bluetooth 4.2 and BLE
Launch priceUS$10US$15

Power and battery

3 facts
Recommended supply
2 A[4]
USB peripheral budget
Limited only by the supply, board and connector ratings[4]
Typical bare-board draw
350 mA[4]

History and use today

Editorial

History

Released in October 2021, the Zero 2 W packed the Pi 3's silicon and 512 MB of RAM into one RP3A0 package so it would fit the original Zero footprint.[5]

Still useful for

The best small Pi for cameras, retro handhelds, Klipper hosts and headless network gadgets, and it runs 64-bit Raspberry Pi OS.

Projects from the archive

2 builds

Sources

11 sources
  1. Raspberry Pi hardware introduction (documentation source)
  2. Processors, Raspberry Pi documentation
  3. GPIO and the 40-pin header, Raspberry Pi documentation (source)
  4. Power supplies, Raspberry Pi documentation (source)
  5. New Raspberry Pi Zero 2 W, Raspberry Pi news
  6. Raspberry Pi, Wikipedia
  7. Raspberry Pi OS downloads, Raspberry Pi
  8. Zephyr board definition (rpi_zero_2w) at 3c61a12bdd
  9. CircuitPython board definition (raspberrypi_zero2w) at 83b54473a1
  10. Armbian board configuration (rpi4b) at da85daa05b
  11. Linux kernel device tree (bcm2837-rpi-zero-2-w.dts) at 551c722f40

Spotted a mistake?

Reviewed by hand

Every report is read by a person and checked against a source before anything changes. Please link one if you have it.

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