GameStop has priced a number of PS Vita peripherals ahead of the handheld's Western launch early next year.
These include external memory cards, which will be required for a number of games as not all titles can store saves internally.
A 4GB Vita memory card will cost $29.99 (£19), an 8GB one $44.99 (£29), a 16GB one $69.99 (£45) and a 32GB one $119.99 (£77).
The prices are roughly in line with those previously announced for Japan, when Sony detailed 16 PS Vita peripherals.
Vita will launch in the UK with at least 12 first-party games at a cost of £229 (£279 for the 3G model).