Below is a list of all keyboard layouts and their respective photos, as provided on a black keyboard.
Generally, key layouts of the same type (ANSI vs ISO) can be swapped with other key caps that support the same layout. If you're unsure if your SteelSeries keyboard can have it's key caps swapped, check out: Can I swap the keycaps on my keyboard?
ANSI style keyboards (sometimes called 104 key layout) have a shorter Enter key, bigger shift keys, and have a backslash key above the Enter key.
ISO style keyboards (sometimes called 105 key layout) have a larger Enter key, shorter shift key to accommodate the extra key, and have a backslash key next to the Enter key.