https://community.extremenetworks.com/t5/extremeswitching-exos-switch/what-s-the-difference-between-sku-10311-and-40gb-co-5-qsfp/m-p/57635#M17093 I see both devices listed on the X450 datasheet. I am trying to figure out the difference and which one is the correct one for stacking on the X450. Fri, 09 Mar 2018 02:06:00 GMT Christopher_Ivi 2018-03-09T02:06:00Z https://community.extremenetworks.com/t5/extremeswitching-exos-switch/what-s-the-difference-between-sku-10311-and-40gb-co-5-qsfp/m-p/57635#M17093 I see both devices listed on the X450 datasheet. I am trying to figure out the difference and which one is the correct one for stacking on the X450. Fri, 09 Mar 2018 02:06:00 GMT https://community.extremenetworks.com/t5/extremeswitching-exos-switch/what-s-the-difference-between-sku-10311-and-40gb-co-5-qsfp/m-p/57635#M17093 Christopher_Ivi 2018-03-09T02:06:00Z https://community.extremenetworks.com/t5/extremeswitching-exos-switch/what-s-the-difference-between-sku-10311-and-40gb-co-5-qsfp/m-p/57636#M17094 I think the only difference is manufacturer. Both are supported and should work with stacking on the X450-G2. The list price on both of them is the same as well.<BR /> Fri, 09 Mar 2018 23:45:00 GMT https://community.extremenetworks.com/t5/extremeswitching-exos-switch/what-s-the-difference-between-sku-10311-and-40gb-co-5-qsfp/m-p/57636#M17094 Drew_C 2018-03-09T23:45:00Z