JSAUX HB0602 Review: Best Budget Dock for Steam Deck with HDMI 2.1?

There's a particular kind of product that punches so far above its price bracket that it makes you question what you've been spending your money on. The JSAUX HB0602 is one of those. At budget tier pricing, it's a 5-in-1 dock promising HDMI 2.1 output at 4K@120Hz, wired Ethernet, dual USB-A ports, and 100W USB-C passthrough. For handheld gaming dock money, that spec sheet reads almost suspiciously well.

But here's the context that matters: the Steam Deck's official dock from Valve costs considerably more and doesn't even offer HDMI 2.1. JSAUX, a brand that's quietly built a solid reputation in the Steam Deck accessory space, is betting that most buyers would rather have the better spec at a fraction of the cost. And with 3,291 owners rating this thing at ★★★★☆ (4.4), it's not like they're keeping quiet about whether that bet paid off.

So who actually needs this? If you've got a Steam Deck (original or OLED), an ASUS ROG Ally X, a Lenovo Legion Go, or an MSI Claw, and you want to plug it into your telly without faff, this dock is aimed squarely at you. The question isn't whether the idea is good. The question is whether the execution holds up when you're actually using it daily.

The Ethernet port delivers 100Mbps. Not Gigabit, which is worth flagging, but for gaming purposes 100Mbps is genuinely fine for most people. Online gaming doesn't need Gigabit bandwidth, it needs low latency and stability, and wired Ethernet provides both regardless of whether it's 100Mbps or 1000Mbps. Where you'd notice the difference is large file transfers or downloading a 50GB game while someone else is streaming 4K in the same house. Worth knowing, not worth panicking about.

The USB-C port does double duty as a 100W power delivery passthrough, which means you can keep your handheld charged while it's docked without needing a separate cable. The Steam Deck OLED, for reference, charges at up to 45W, so 100W is more than enough headroom. The two USB-A ports are USB 2.0, which is the one genuine concession in the spec sheet. USB 2.0 tops out at 480Mbps, so don't plan on using these for fast external storage. Keyboard, mouse, controller, USB hub? Absolutely fine.

The 100W USB-C passthrough is the second feature worth understanding properly. Some cheaper docks pass through power but throttle it, meaning your device charges slowly or not at all under load. 100W is a proper delivery spec. The Steam Deck and its handheld rivals all draw significantly less than that under gaming load, so you'll stay charged with headroom to spare. This matters more than it sounds because docking a handheld without charging it is a fairly pointless exercise unless you're just doing a quick session.

Wired Ethernet is the third pillar, and it's one that gets overlooked in the handheld gaming conversation. Wi-Fi on the Steam Deck is decent but it's still Wi-Fi. If you're playing competitive multiplayer, or you're just fed up with the occasional stutter that wireless introduces, plugging in an Ethernet cable is the single most reliable fix. The 100Mbps ceiling is worth knowing about (see the specs section for the full breakdown), but for the vast majority of gaming use cases it simply doesn't matter. And the dual USB-A ports round things out for peripherals, giving you enough connections for a keyboard and mouse or a controller receiver without needing to daisy-chain hubs.

One thing JSAUX doesn't shout about but owners frequently mention: the form factor. This is a compact, portable dock. It's not a chunky desktop unit. You can throw it in a bag with your Steam Deck and actually use it at a hotel or a friend's place, which is exactly the kind of real-world usability that makes the difference between a dock that lives on your desk and one that actually travels with you.

The Ethernet performance draws almost universally positive feedback. Owners moving from Wi-Fi to wired via this dock report noticeably more stable connections in online games, which is exactly what you'd expect. Nobody's reporting the 100Mbps limit as a practical problem in gaming scenarios. Where a handful of owners have noted it as a limitation is in households with very fast broadband where they're also doing large downloads simultaneously, but that's a genuinely niche edge case for most Steam Deck users. If you're downloading the entire Steam library in the background while gaming online, you might notice. If you're just gaming, you won't.

The USB-A 2.0 ports are the area where some owners express mild frustration, and it's worth being straight about this. If you plug in a USB 3.0 flash drive expecting fast transfer speeds, you'll be disappointed. USB 2.0 is slow for storage. But for keyboards, mice, controllers, and USB audio adapters? Absolutely no problem. The 100W power passthrough gets consistent praise, with owners specifically noting that their devices charge at full speed even while gaming, which isn't guaranteed with every dock in this category. A small number of owners mention occasional compatibility quirks with certain USB-C cables, so using a quality cable rated for the full 100W is worth doing rather than grabbing whatever's nearest.

The port fitment is worth mentioning because it's where cheap docks often fall down. If USB ports feel wobbly or HDMI connectors don't seat properly, it creates intermittent connection issues that are genuinely maddening. Owners of the HB0602 don't report this. The ports are described as snug and secure, which is exactly what you want from something that's going to have cables plugged and unplugged regularly. The cable connecting the dock to your device is integrated rather than removable, which some owners prefer (one less thing to lose) and some find limiting (can't replace it if it wears out). Worth knowing before you buy.

Durability over time is harder to assess without long-term data, but the review patterns don't show the kind of early failure clustering you see with genuinely dodgy products. JSAUX as a brand has been in the Steam Deck accessory market since the device launched, and their customer service reputation (based on owner reports) is reasonable. They're not a fly-by-night operation, which matters when you're buying accessories for a device you've spent real money on. The compact size does mean it runs slightly warm under sustained load, which is normal for a passive dock but worth knowing if you're leaving it running for extended sessions.

The physical setup is similarly straightforward. The integrated USB-C cable is long enough to reach your device comfortably when the dock is sitting next to it or on a shelf below your TV. Owners don't report any awkward cable management issues, and the compact footprint means it doesn't take up much space on an entertainment unit. If you're using this in desktop mode on the Steam Deck, the dual USB-A ports give you enough connections for a keyboard and mouse without needing an additional hub, which covers the most common desktop mode setup.

The one area where setup can get slightly more involved is on non-Steam Deck devices. The ASUS ROG Ally X, Lenovo Legion Go, and MSI Claw all run Windows, and while the dock works with all of them, the experience can vary slightly depending on driver states and Windows update behaviour. Most owners report plug-and-play on Windows too, but it's worth knowing that if you're switching between devices, you might occasionally need to nudge Windows into recognising the display output properly. This isn't a JSAUX-specific problem, it's a Windows-and-USB-C-docks problem, and it affects the whole category. On SteamOS it's simply not an issue.

The HDMI 2.1 output is compatible with any HDMI display, including older ones that only support HDMI 2.0 or earlier. You'll just be limited by what your display can accept. Plugging this into a 1080p 60Hz television is fine, it'll output 1080p@60Hz. The dock doesn't require a 4K 120Hz display to function, it just enables one if you have it. The Ethernet port is standard RJ45, compatible with any router or switch. No special cables needed, just a regular Cat5e or Cat6 Ethernet cable.

USB compatibility is broad. The USB-A 2.0 ports will work with any USB-A device, including USB 3.0 and 3.1 devices (which will just run at USB 2.0 speeds). The USB-C power passthrough port works with any USB-C charger that can supply up to 100W, using the USB Power Delivery standard. JSAUX recommends using a 65W or higher charger for the best experience, and owners confirm that using a quality charger makes a noticeable difference to charging speed under load. One minor compatibility note: a small number of owners using the original Steam Deck (not OLED) report that 4K@120Hz output requires the dock to be connected to a compatible display and charger simultaneously to have enough power budget. This is a Steam Deck hardware limitation rather than a dock issue, but worth flagging.

The second use case is desktop mode productivity. Steam Deck's desktop mode is a full KDE Plasma Linux desktop, and with this dock you can run it properly. Plug in a USB keyboard and mouse through the USB-A ports, connect to a monitor via HDMI, and you've got a functional Linux desktop workstation. It's not going to replace a proper PC for heavy workloads, but for web browsing, document editing, and light creative work it's surprisingly capable. The wired Ethernet makes this more reliable than relying on Wi-Fi, and the 100W passthrough keeps everything charged for extended sessions.

Third use case: travel gaming. The compact form factor means this actually fits in a bag without taking up meaningful space. If you're travelling and you want to use your handheld on a hotel room television, this dock handles it. Most modern hotel TVs have HDMI ports. Bring the dock, bring an Ethernet cable (hotel wired connections are often more reliable than their Wi-Fi), and you've got a proper gaming setup in a hotel room. This is genuinely useful and not every dock in this category is portable enough to make it practical.

Fourth use case: the ROG Ally X or Legion Go Windows gaming setup. If you're on one of the Windows handhelds rather than the Steam Deck, the HB0602 gives you the same core functionality. Connect to a 4K 120Hz monitor, wire up Ethernet for stable online gaming, plug in a keyboard and mouse for when you want to use it in desktop mode, and keep the device charged. The Windows experience with USB-C docks has some rough edges (as mentioned in the ease of use section), but the core functionality is solid and the spec is more generous than most docks aimed at this market.

The honest trade-off at this price is the USB-A 2.0 ports and the 100Mbps Ethernet rather than Gigabit. If either of those is a dealbreaker for your specific use case, you'll need to spend more. JSAUX's own higher-end docks offer Gigabit Ethernet and USB 3.0 ports, and there are third-party alternatives in the mid-range bracket that address these limitations. But for the majority of Steam Deck users, the HB0602's spec sheet covers everything they actually need, and the things it doesn't have are things they probably won't miss in practice.

The 4.4-star average across 3,291 is a meaningful signal. That's not a handful of enthusiast early adopters, that's a large and diverse sample of real buyers. At budget tier pricing, a 4.4 average with that volume of reviews suggests genuine satisfaction rather than review manipulation. The complaints that do appear are consistent and honest: USB 2.0 speed limitations, the occasional Windows compatibility quirk, and the integrated cable being non-replaceable. None of these are hidden defects, they're known trade-offs at the price point. If you go in knowing them, you're unlikely to be disappointed.

The Valve dock uses HDMI 2.0, which means 4K@60Hz is the ceiling. It has Gigabit Ethernet and three USB-A 3.1 ports, which are genuine advantages over the JSAUX. But it costs considerably more, it's less portable, and if you have a 120Hz display, the HDMI 2.0 limitation is a real regression. For most living room gaming setups, the JSAUX's HDMI 2.1 output is the more practically useful spec, and the Gigabit Ethernet advantage only matters in specific scenarios.

The Anker 533 is a different kind of comparison. It's a general-purpose USB-C hub rather than a handheld gaming dock, and it doesn't offer 100W passthrough or HDMI 2.1. It has more ports in some configurations, but the core gaming use case is less well served. The JSAUX HB0602 is a more focused product for a more specific use case, and that focus shows in the spec choices. If you want a general-purpose hub for a laptop, the Anker makes sense. If you want a dock for a gaming handheld, the JSAUX is the better fit.

The 100W power passthrough gets positive mentions, particularly from owners who had previously used docks that charged their devices slowly or not at all under gaming load. Several owners mention using this with the Steam Deck OLED specifically and being pleased with the HDR output quality on compatible televisions. The compact size and portability come up frequently as genuine positives, with travel users in particular appreciating that it doesn't add much weight or bulk to a bag.

The criticisms are real but consistent with the price point. USB 2.0 speed is the most common complaint, and it's fair. Owners who expected USB 3.0 speeds from the USB-A ports were disappointed, and that's a reasonable expectation that the product doesn't meet. A handful of owners report Windows compatibility quirks with the ROG Ally and Legion Go, though most report these as minor and resolvable. A small number of owners mention the integrated cable as a concern for long-term durability, specifically wondering what happens if the cable wears out. It's a legitimate point, though no significant wave of cable failure reports appears in the review data. And a very small number of owners report units that didn't work out of the box, which happens with any electronics product and doesn't appear to be a systemic issue given the 4.4 average.

The trade-offs are real. USB 2.0 on the USB-A ports is a limitation, the Ethernet is 100Mbps rather than Gigabit, and the integrated cable means you can't swap it if it eventually wears out. These are the compromises that fund the HDMI 2.1 spec at budget tier pricing, and whether they matter depends entirely on your use case. For gaming, they largely don't. For fast file transfers or professional workflows, they might.

Trusted by over 3,000 buyers with a 4.4-star average, this is a product with a proven track record rather than a spec-sheet gamble. JSAUX has been making Steam Deck accessories since the device launched and their quality consistency is better than most in this price bracket. If you're setting up a Steam Deck, Steam Deck OLED, ROG Ally X, Legion Go, or MSI Claw for big-screen gaming and you don't want to overpay for the first-party option, the HB0602 is the sensible choice. Genuinely recommended.

Score: 8.5/10. Exceptional value at budget tier pricing. Loses half a point for USB 2.0 and 100Mbps Ethernet, gains it back for being the most affordable route to proper 4K@120Hz output for handheld gaming. Buy it.

• Buy if: You have a 4K 120Hz display and want to use your handheld on it properly
• Buy if: You want wired Ethernet stability without paying premium dock prices
• Buy if: You travel with your handheld and want a portable dock that fits in a bag
• Skip if: You need fast USB-A storage transfers (USB 2.0 will frustrate you)
• Skip if: Gigabit Ethernet is a hard requirement for your setup
• Skip if: You need a replaceable cable (the integrated design won't suit you)

Prices correct at time of research. Check current pricing via the product links. Vivid Repairs participates in affiliate programmes; purchasing via our links supports the site at no extra cost to you. Compatibility information based on manufacturer specifications and owner-reported experience. Always verify compatibility with your specific device and display before purchasing.