Philips Respironics data card?

My DME wants the data card from my PR System One machine.

I want to buy another one, but is it mandatory that it's a Philips' brand?

Can a generic be bought and used in the machine?

Thanks,
dinycat

I bought a extra SD card from Staples for my System 1. I made a copy of the original and sent it to them.

I was going to send them a bill for the card.. but they sent it back to me...

Any plain SD card will do just fine. A 2GB card will hold several years of data so there is no need to get bigger.
Sources are CPAP.COM, Staples, Walmart, your local photo store, etc.

Do not consider SDHC or SDXD cards as they 1) might not work and 2) will be way to big in capacity anyway.