HP Omen 35L (2026) review

In case you were wondering, the HP Omen 35L really is 35 litres. Take off your shoes and socks and do the maths, the dimensions are somewhere on this page: HP has named its compactish gaming PC rather sensibly, and while there’s no way this could ever be called SFF (it’s about the size of two Fractal Terras stacked on top of one another, or just over three large watermelons if you squish them a bit) it’s certainly not huge.

And it’s very nicely made. The one we’ve got here comes in black, though there have been white variants of the 35L in the past, and the glass front and side panels allow you to see the glory of the RGB fans and CPU pump as they swish away. The mATX motherboard contains two RAM slots, both of which are filled, and there’s a spare M.2 for an extra SSD if you don’t mind removing the GPU to get at it, but the empty PCIe slot at the bottom is so close to the graphics card shroud you’re not going to get much in there.