A Steam Deck without a carrying solution is a Steam Deck waiting to get scratched. The question is which type of case matches how you actually transport the device — a rigid hard shell for maximum protection, a sling bag for grab-and-go convenience, or a modular system that combines travel protection with everyday grip. Each approach has trade-offs in bulk, access speed, and protection level.
This guide compares the Steam Deck carrying options available at ModZone to help you pick the format that fits your travel habits.
The Three Case Formats
| Product | Format | Protection Level | Best For | Price |
|---|---|---|---|---|
| JSAUX Carrying Case | Hard shell clamshell | Highest — rigid EVA shell | Backpack travel, checked bags, maximum protection | $25.99 |
| JSAUX Sling Bag | Soft sling bag | Moderate — padded fabric | Commuting, quick outings, crossbody carry | $36.99 |
| JSAUX ModCase | Attached protective shell + front cover | Moderate — snap-on shell with screen cover | Daily carry without a separate case | $49.99 |
JSAUX Carrying Case: Maximum Travel Protection
The JSAUX Carrying Case ($25.99) is a traditional hard shell clamshell case. The rigid EVA exterior absorbs impacts and resists crushing — the kind of protection that matters when the Deck goes into a backpack alongside textbooks, a laptop, or other heavy items.
Inside, the molded interior cradles the Steam Deck with padding around the joysticks, triggers, and screen. There’s a mesh pocket for cables and a charger. The case fits both OLED and LCD models, plus the ROG Ally with its similar form factor.
The trade-off is bulk. A hard shell case doesn’t collapse or compress when empty, and it adds significant volume to a bag. For daily commuters who carry the same bag every day, this isn’t an issue. For travelers who pack light, the rigid case takes up space.
JSAUX Sling Bag: Grab-and-Go Convenience
The JSAUX Sling Bag ($36.99) is a crossbody bag designed specifically around the Steam Deck’s dimensions. Instead of going into your existing bag, the Deck gets its own dedicated carry — slung across your chest or shoulder for quick access.
The padded interior provides moderate protection against bumps and light impacts. It’s not as rigid as the hard shell case, but it’s enough for walking, public transit, and casual travel. The sling format means the Deck is always accessible — unzip, pull out, play, put back.
Additional pockets hold a charger, earbuds, cables, and small accessories. The bag is large enough for the Deck plus essentials but not so large that it becomes a general-purpose bag.
The trade-off is lower impact protection compared to the rigid case. The sling bag wouldn’t survive being sat on or crushed under heavy luggage. For that level of protection, the hard shell is the right tool.
JSAUX ModCase: Protection Without a Separate Case
The JSAUX ModCase ($49.99) takes a different approach entirely. Instead of putting the Deck into a case for travel, the ModCase stays attached to the device and includes a front cover that protects the screen, joysticks, and buttons when not in use.
This means the Deck is always protected — no separate case needed for short trips, room-to-room moves, or quick bag-stuffs. When you’re ready to play, flip the front cover back and go. When you’re done, close the cover and toss it in a bag.
The ModCase also includes a cooling fan module and a metal kickstand, which adds utility beyond just protection. For a full comparison with grip-only cases, see the ModCase vs GripCase SD guide.
Which Format Fits Your Use Case
| Scenario | Best Choice | Why |
|---|---|---|
| Daily commute by train/bus | Sling Bag | Quick access, comfortable crossbody carry, moderate protection |
| Backpack travel (school, work) | Carrying Case | Rigid shell protects against other items in the bag |
| Air travel / checked luggage | Carrying Case | Maximum impact and crush resistance |
| Moving between rooms at home | ModCase | Always-on protection, no separate case to manage |
| Weekend trips, light packing | ModCase or Sling Bag | Both work — ModCase for less gear, Sling Bag for more storage |
| Want all-in-one (protection + grip + cooling) | ModCase | Replaces multiple accessories with one system |
Pairing With a Screen Protector
Regardless of which carrying solution you choose, a screen protector adds an independent layer of defense against scratches from keys, coins, or other pocket items. The JSAUX Screen Protector 2-Pack ($9.99) is a low-cost addition that complements any case setup.
FAQ
Can I fit the Steam Deck with a grip case inside the hard shell carrying case?
The JSAUX Carrying Case is designed to fit the Steam Deck without a grip case. Adding a grip shell like the Skull & Co GripCase SD may make it too tight depending on the grip’s thickness. Check the case dimensions against your grip case before assuming compatibility.
Is the sling bag large enough for a charger?
Yes. The JSAUX Sling Bag has accessory pockets that hold the stock 45W charger, a USB-C cable, and earbuds. The MARSDOCK 45W USB-C Charger ($14.99) is a compact alternative that takes up less space in the bag.
Can I use the ModCase front cover without the rest of the ModCase?
No. The front cover attaches to the ModCase’s back shell. It’s a modular system — the components are designed to work together. The front cover does not attach to the bare Steam Deck or to other brands’ grip cases.