diff --git a/.gitmodules b/.gitmodules
index cae3a680..b2dff142 100644
--- a/.gitmodules
+++ b/.gitmodules
@@ -1034,3 +1034,6 @@
[submodule "libraries/helpers/usb_host_midi"]
path = libraries/helpers/usb_host_midi
url = https://github.com/adafruit/Adafruit_CircuitPython_USB_Host_MIDI.git
+[submodule "libraries/drivers/ina3221"]
+ path = libraries/drivers/ina3221
+ url = https://github.com/adafruit/Adafruit_CircuitPython_INA3221.git
diff --git a/docs/drivers.rst b/docs/drivers.rst
index 4191a38f..867cda05 100644
--- a/docs/drivers.rst
+++ b/docs/drivers.rst
@@ -549,6 +549,7 @@ Miscellaneous
HUSB238
INA219 High Side Current
INA260 Current and Power Monitor
+ INA3221 Three Channel Amp Power Monitor
LC709203F Fuel Gauge and Battery Monitor
Matrix Keypad
MAX1704x Fuel Gauge
diff --git a/libraries/drivers/ina3221 b/libraries/drivers/ina3221
new file mode 160000
index 00000000..04b1e0f3
--- /dev/null
+++ b/libraries/drivers/ina3221
@@ -0,0 +1 @@
+Subproject commit 04b1e0f332271700d57ef3e47f9537ef3e6c8c36