The Galaxy S5 is set to launch on all the major U.S. carriers starting next month, but T-Mobile customers may have a limited choice. A leaked internal document obtained by Android Central reveals that Samsung’s new flagship phone will only be available at T-Mobile stores with 16GB of storage, though you should still be able to order a 32GB model from the carrier online.

The leaked document also lists the Galaxy S5’s specs, though there’s nothing unexpected here besides the lack of in-store 32GB models. We’ve still got the same 5.1-inch Super AMOLED display, 2.5GHz quad-core processor, removable 2800mAh battery, a 16-megapixel rear camera, a 2-megapixel front-facing camera, and Android 4.2.2. It also comes with tons of new features, including a heart rate monitor, a fingerprint sensor, water-resistant coating, and a new power saving mode.

We’re not sure exactly why T-Mobile is opting to go 16GB only for its in-store Galaxy S5 sales. It’s possible the move is tied to Samsung’s own supply chain issues, though the company’s rarely struggled to ship new devices. It’s also possible T-Mobile made a conscious decision based on customer preferences, which makes sense if most people opt for a cheaper model instead of paying more for additional storage. Thankfully, you can always toss in a 128GB microSD card for a ton of extra space.

There’s still no word on exactly when the Galaxy S5 will launch on T-Mobile, though we expect the device to arrive in the U.S. early next month.