diff --git a/src/backend/cynthion.rs b/src/backend/cynthion.rs
index 76a6264e..cfe0cfd2 100644
--- a/src/backend/cynthion.rs
+++ b/src/backend/cynthion.rs
@@ -9,7 +9,6 @@ use futures_channel::oneshot;
 use futures_lite::future::block_on;
 use futures_util::future::FusedFuture;
 use futures_util::{select_biased, FutureExt};
-use num_enum::{FromPrimitive, IntoPrimitive};
 use nusb::{
     self,
     transfer::{
@@ -24,6 +23,8 @@ use nusb::{
     Interface
 };
 
+use crate::usb::Speed;
+
 const VID: u16 = 0x1d50;
 const PID: u16 = 0x615b;
 
@@ -36,16 +37,6 @@ const ENDPOINT: u8 = 0x81;
 const READ_LEN: usize = 0x4000;
 const NUM_TRANSFERS: usize = 4;
 
-#[derive(Copy, Clone, FromPrimitive, IntoPrimitive)]
-#[repr(u8)]
-pub enum Speed {
-    #[default]
-    High = 0,
-    Full = 1,
-    Low  = 2,
-    Auto = 3,
-}
-
 impl Speed {
     pub fn description(&self) -> &'static str {
         use Speed::*;
diff --git a/src/test_cynthion.rs b/src/test_cynthion.rs
index 22cbe526..00d6978c 100644
--- a/src/test_cynthion.rs
+++ b/src/test_cynthion.rs
@@ -2,7 +2,6 @@ use crate::backend::cynthion::{
     CynthionDevice,
     CynthionUsability,
     CynthionHandle,
-    Speed
 };
 use crate::capture::{
     create_capture,
@@ -14,6 +13,7 @@ use crate::capture::{
 };
 use crate::decoder::Decoder;
 use crate::file::{GenericSaver, PcapSaver};
+use crate::usb::Speed;
 
 use anyhow::{Context, Error, ensure};
 use futures_lite::future::block_on;
diff --git a/src/ui.rs b/src/ui.rs
index 83f2cd21..159660b6 100644
--- a/src/ui.rs
+++ b/src/ui.rs
@@ -64,7 +64,7 @@ use crate::backend::cynthion::{
     CynthionHandle,
     CynthionStop,
     CynthionUsability::*,
-    Speed};
+};
 
 use crate::capture::{
     create_capture,
@@ -92,6 +92,7 @@ use crate::row_data::{
     ToGenericRowData,
     TrafficRowData,
     DeviceRowData};
+use crate::usb::Speed;
 use crate::util::{fmt_count, fmt_size};
 use crate::version::{version, version_info};
 
diff --git a/src/usb.rs b/src/usb.rs
index 6ae78ab9..cd66b4a2 100644
--- a/src/usb.rs
+++ b/src/usb.rs
@@ -31,6 +31,16 @@ fn crc5(mut input: u32, num_bits: u32) -> u8 {
     (state ^ 0x1f) as u8
 }
 
+#[derive(Copy, Clone, FromPrimitive, IntoPrimitive)]
+#[repr(u8)]
+pub enum Speed {
+    #[default]
+    High = 0,
+    Full = 1,
+    Low  = 2,
+    Auto = 3,
+}
+
 #[allow(clippy::upper_case_acronyms)]
 #[derive(Copy, Clone, Debug, Default, IntoPrimitive, FromPrimitive, PartialEq, Eq)]
 #[repr(u8)]
@@ -247,7 +257,7 @@ pub enum StartComplete {
 }
 
 #[derive(Copy, Clone, Debug)]
-pub enum Speed {
+pub enum SplitSpeed {
     Low,
     Full,
 }
@@ -291,8 +301,8 @@ impl SplitFields {
                 [packet[1], packet[2], packet[3], 0]))
     }
 
-    pub fn speed(&self) -> Speed {
-        use Speed::*;
+    pub fn speed(&self) -> SplitSpeed {
+        use SplitSpeed::*;
         if self.endpoint_type() == EndpointType::Isochronous {
             Full
         } else if self.start() {