Most 3000 models are only 2KRO, though there are some with NKRO. Unless you can see diode under the stem, and not just a jumper wire is only way to tell for sure. Model number is usually not enough, though the /09 says it's a later revision so it is not as likely. Even still, if it is a good price you get some clear switch and doubleshot keycaps so it can still be worth buying. Even 2KRO is fine for any non-gaming for most people. Even then it depends a lot on what games you play, some the 2KRO is not a problem like most RPG for example.