diff --git a/sdwire/backend/device/sdwire.py b/sdwire/backend/device/sdwire.py
index cb30e57..8d270d3 100644
--- a/sdwire/backend/device/sdwire.py
+++ b/sdwire/backend/device/sdwire.py
@@ -3,6 +3,11 @@
 import usb.core
 from sdwire.backend.device.usb_device import USBDevice, PortInfo
 from sdwire.backend.block_device_utils import map_usb_device_to_block_device
+from sdwire.constants import (
+    PRINT_SERIAL_SECTION_WIDTH,
+    PRINT_PRODUCT_INFO_SECTION_WIDTH,
+    PRINT_BLOCK_DEV_SECTION_WIDTH,
+)
 
 log = logging.getLogger(__name__)
 
@@ -79,7 +84,10 @@ def storage_device(self) -> Optional[usb.core.Device]:
 
     def __str__(self) -> str:
         block_dev_str = self.block_dev if self.block_dev is not None else "None"
-        return f"{self.serial_string:<30}[{int(self.manufacturer_string):04x}::{int(self.product_string):04x}]\t\t{block_dev_str}"
+        product_info_section = (
+            f"[{int(self.manufacturer_string):04x}::{int(self.product_string):04x}]"
+        )
+        return f"{self.serial_string:<{PRINT_SERIAL_SECTION_WIDTH}}{product_info_section:<{PRINT_PRODUCT_INFO_SECTION_WIDTH}}{block_dev_str:<{PRINT_BLOCK_DEV_SECTION_WIDTH}}"
 
     def __repr__(self) -> str:
         return self.__str__()
diff --git a/sdwire/backend/device/sdwire3_pro.py b/sdwire/backend/device/sdwire3_pro.py
new file mode 100644
index 0000000..ee0d654
--- /dev/null
+++ b/sdwire/backend/device/sdwire3_pro.py
@@ -0,0 +1,11 @@
+import logging
+from sdwire.backend.device.usb_device import PortInfo
+from sdwire.backend.device.sdwire import SDWire
+
+log = logging.getLogger(__name__)
+
+
+class SDWire3Pro(SDWire):
+
+    def __init__(self, port_info: PortInfo):
+        super().__init__(port_info, 2)
diff --git a/sdwire/backend/device/sdwirec.py b/sdwire/backend/device/sdwirec.py
index 7c3d0a5..08a0d63 100644
--- a/sdwire/backend/device/sdwirec.py
+++ b/sdwire/backend/device/sdwirec.py
@@ -7,6 +7,11 @@
     map_usb_device_to_block_device,
     find_sibling_storage_device,
 )
+from sdwire.constants import (
+    PRINT_SERIAL_SECTION_WIDTH,
+    PRINT_PRODUCT_INFO_SECTION_WIDTH,
+    PRINT_BLOCK_DEV_SECTION_WIDTH,
+)
 
 log = logging.getLogger(__name__)
 
@@ -37,7 +42,8 @@ def _update_block_device(self) -> None:
 
     def __str__(self) -> str:
         block_dev_str = self.block_dev if self.block_dev is not None else "None"
-        return f"{self.serial_string:<30}[{self.product_string}::{self.manufacturer_string}]\t\t{block_dev_str}"
+        product_info_section = f"[{self.product_string}::{self.manufacturer_string}]"
+        return f"{self.serial_string:<{PRINT_SERIAL_SECTION_WIDTH}}{product_info_section:<{PRINT_PRODUCT_INFO_SECTION_WIDTH}}{block_dev_str:<{PRINT_BLOCK_DEV_SECTION_WIDTH}}"
 
     def __repr__(self) -> str:
         return self.__str__()
diff --git a/sdwire/constants.py b/sdwire/constants.py
index a0779ba..fdbdc13 100644
--- a/sdwire/constants.py
+++ b/sdwire/constants.py
@@ -5,3 +5,7 @@
 SDWIREC_PRODUCT_STRING = "sd-wire"
 
 USB_MASS_STORAGE_CLASS_ID = 8
+
+PRINT_SERIAL_SECTION_WIDTH = 30
+PRINT_PRODUCT_INFO_SECTION_WIDTH = 20
+PRINT_BLOCK_DEV_SECTION_WIDTH = 50
diff --git a/sdwire/main.py b/sdwire/main.py
index 405e314..bfd823f 100644
--- a/sdwire/main.py
+++ b/sdwire/main.py
@@ -10,6 +10,11 @@
 import click
 from sdwire.backend import utils
 from sdwire.backend import detect
+from sdwire.constants import (
+    PRINT_SERIAL_SECTION_WIDTH,
+    PRINT_PRODUCT_INFO_SECTION_WIDTH,
+    PRINT_BLOCK_DEV_SECTION_WIDTH,
+)
 
 
 @click.group()
@@ -24,7 +29,9 @@ def main(debug: Optional[bool] = None) -> None:
 @main.command()
 def list() -> None:
     """List all connected SDWire devices with their block device information."""
-    print(f"{'Serial':<30}Product Info\t\tBlock Dev")
+    print(
+        f"{'Serial':<{PRINT_SERIAL_SECTION_WIDTH}}{'Product Info':<{PRINT_PRODUCT_INFO_SECTION_WIDTH}}{'Block Dev':<{PRINT_BLOCK_DEV_SECTION_WIDTH}}"
+    )
     for sdwire in detect.get_sdwire_devices():
         print(sdwire)