The monitor "Dell UltraSharp U4919DW" has neither a holding device nor a magnetic bar. According to the Dell website, no soundbar is compatible with the monitor. This was confirmed by Dell themselves in several support enquiries and it also coincides with my experience. The good news, however, is that the soundbar can be connected and operated via any USB downstream port on the monitor. However, since the monitor stand is too wide for the Dell AE515M soundbar mount, the soundbar can only be placed on the base. Everyone must decide for themselves whether this is to their liking.

What, pray tell, is so difficult about looking at the "Is an accessory of" - "Monitor" section on the product page of the soundbar here at Galaxus ... ? ?? The monitor (https://www.galaxus.de/de/s1/product/dell-ultrasharp-u4919dw-5120-x-1440-pixels-49-monitor-10208942) to which you want to attach this soundbar is listed there.

I can't remember exactly, something didn't fit and I returned it.