The Federal Communications Commission published the certification documents of two new PS4 models (or more precisely, two variants of the same new model), numbered CUH-1215A and CUH-1215B, plus the related testing kit DUH-T1200AA.

The documentation includes a radio test report  showcasing the main specs of the new model, alongside the labels.

As usual the "15" indicates the region, so that part of the number will vary depending on the nation where the consoles will be sold.

First of all, we learn that the two variants of the new model differ in hard disk drive size: the CUH-1215A variant includes a 500 gigabytes hard disk, while the CUH-1215B variant includes a bigger one terabyte hard disk drive.

The fact that only the second digit has been changed from the previous CUH-11XX model seems to indicate an evolution of the internal components and not a full redesign, that according to Sony's numbering standards would normally be marked by a change of the first digit of the model number.

Below you can check out the label and specs of the older CUH-1115A model (which we revealed last year), for comparison's sake:

A second rather evident change is in the power source. The new models's power unit generates 230 W, while the old model was rated 250 W. The amperage also changed from 2.5-1.15 A to 2.3-0.95 A. The voltage range and frequency remained the same.

A final difference between the CUH-11XX model and the CUH-12XX model is the weight: the old model weighs approximately 2.8 Kg, while the new one weighs 2.5 Kg. On the other hand, the size of the two models is the same.

The documentation does not describe in detail the changes that led to the reduction in weight and power consumption, but it could be due to several factors, like a redesigned cooling system or even a possible removal of the Blu-ray drive. This is just personal speculation, though, so take it with the customary grain of salt.

The CUH-11XX model was revealed almost exactly a year ago, and started hitting the shelves in August without any official announcement from Sony. That said, it's unlikely for this CUH-12XX model to be released without an official announcement due to the different storage options.

While we have no way to be sure for now, we might hear something about this at E3.

[Thanks for the tip: Mark Sloan]