Originally Posted by pside15
The surface case on their site only says it's for the GSM version, while a lot of their other cases list the GMS and LTE versions. I thought they were supposed to be exactly the same, except for the CPU and storage.
There are reports that there is a slight size difference between the One X and AT&T One X (One X LTE/One XL). I haven't verified it myself but it would make sense that the Surface would have two versions (the hard case would need to be more exacting than the soft/semi-soft Active cases).
Quoteth the Wiki:
The One XL is almost identical physically although the XL is slightly longer by 0.04mm.
Incidentally, the product code for the Surface LTE version is CSR3HTNXL-BK. BD2-HR3HTNXL-BK is the Surface case/holster combo.