When ordering, how do I ensure it is 2x8, not 1x16 GB RAM?

[CuriousAmerican]

HP ENVY DESKTOP - 795-0030QD

https://store.hp.com/us/en/pdp/hp-envy-desktop-795-0030qd-4ab22av-1?jumpid=ma_holiday-gift-guide-201...

has an option of 16GB, how do you ensure that you get 2x8GB instead of 1x16GB , so that you get the extra boost from dual channel.

The specs are not definitive, and there seems to be nowhere to make the request on the order.

[DGroves]

i would be very supprised if you got a single 16 gb stick as the contract OEM pricing is a fair bit higher for a 16gb module as opposed to a 8gb module

in other words  two 8gb modules will cost HP less than a single GB module

also the motherboard in this system takes 32gb max and has 4 memory slots so 16gb modules don't really make much sense

[CuriousAmerican]

---

@DGroves wrote:

i would be very supprised if you got a single 16 gb stick as the contract OEM pricing is a fair bit higher for a 16gb module as opposed to a 8gb module

in other words  two 8gb modules will cost HP less than a single GB module

also the motherboard in this system takes 32gb max and has 4 memory slots so 16gb modules don't really make much sense

---

But how can I be sure?  I do not want to be surpised.  There is nowhere in the order basket where you can make a request.