diff --git a/README.md b/README.md
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+++ b/README.md
@@ -5,7 +5,7 @@ This repository serves as a well selected collection of Realtek switch SoC docum
 
 What RTK (development kit) we have
 
-- Some fragments from the TP-Link BE550. There are several drivers for Realtek PHYs that are used on non-Realtek platforms.
+- Some fragments from the TP-Link BE550 GPL. It has several drivers for Realtek PHYs that are mainly used on non-Realtek platforms.
 - The most recent SDK from 2022 is based on the D-Link DMS-1250 GPL source. It contains a lot of modern PHY code for RTL8218E, RTL8224, RTL8261 and RTL8264. Download from https://tsd.dlink.com.tw/GPL.asp
 - An older SDK from 2016 is based on the Zyxel XGS1210-12 GPL source. It contains code for a totally unknown RTL8284 PHY. Download can be requested from https://www.zyxel.com/global/en/form/gpl-oss-software-notice