so for anyone in the UK,  I am using the chinese heavy duty Sipolar.

these are expensive in the UK.

however, after digging found Alliexpress that deal direct with Sipolar .

bough 1 unit for roughly £45 including shipping

have not received yet, but will report back

if successful, then do not hesitate in buying the bipolar : retails in UK £75-100

I paid with paypal so I am protected

https://www.aliexpress.com/item/10-Port-USB-HUB-Charger-Sipolar-A-400-Standard-20V-6A-Power-adapter/32513481750.html?spm=2114.search0104.3.2.3f879fddPwtDom&ws_ab_test=searchweb0_0,searchweb201602_2_10152_10151_10065_10344_10130_10068_10324_10342_10547_10325_10343_10340_10548_10341_10696_10192_10190_10084_10083_10618_10307_10820_10301_10821_10303_10869_10868_10059_100031_10103_10624_10623_10622_10621_10620,searchweb201603_13,ppcSwitch_3&algo_expid=75b694b6-e14d-4e1f-8c02-40e9aad5561f-0&algo_pvid=75b694b6-e14d-4e1f-8c02-40e9aad5561f&priceBeautifyAB=0