This looks an awful lot like the pair I got, and are currently both hosting my VMs after a 64GB RAM upgrade. And with the £100 voucher right now on the page you linked to, you can't go wrong. Heck, the same page has the same thing but with 16GB, at £315 and an extra £80 off. Personally I'd go with that, and buy a separate 64GB kit (2x32GB DDR4).