diff --git a/fastboot/fastboot_protocol.txt b/fastboot/fastboot_protocol.txt
index 2248992d2..37b19590a 100644
--- a/fastboot/fastboot_protocol.txt
+++ b/fastboot/fastboot_protocol.txt
@@ -12,8 +12,8 @@ Basic Requirements
 ------------------
 
 * Two bulk endpoints (in, out) are required
-* Max packet size must be 64 bytes for full-speed and 512 bytes for 
-  high-speed USB
+* Max packet size must be 64 bytes for full-speed, 512 bytes for
+  high-speed and 1024 bytes for Super Speed USB.
 * The protocol is entirely host-driven and synchronous (unlike the
   multi-channel, bi-directional, asynchronous ADB protocol)
 
diff --git a/fastboot/protocol.c b/fastboot/protocol.c
index 84e9837b6..10a84c124 100644
--- a/fastboot/protocol.c
+++ b/fastboot/protocol.c
@@ -216,7 +216,7 @@ int fb_download_data(usb_handle *usb, const void *data, unsigned size)
     }
 }
 
-#define USB_BUF_SIZE 512
+#define USB_BUF_SIZE 1024
 static char usb_buf[USB_BUF_SIZE];
 static int usb_buf_len;