Buying Guide
The Best Dell USB-C Ethernet Adapters for Everyday Desk Work
We looked at 2 dell USB-C ethernet adapters side by side, with the trade-offs that separate them and who each one suits.
By Jamie Cole, Lead Product Researcher
6 min read2 products evaluated
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5G adapter for faster wired networking.
5G listing in particular publishes less extended detail than the PXE-focused Gigabit model.
Quick Picks
Our 2 recommendations at a glance. Tap a pick for the full verdict.
Best for IT/PXE Boot
Dell USB-C to Ethernet Adapter (PXE Boot)
Buyers prioritizing gigabit link speed
Our take Check price for Dell USB-C to Ethernet Adapter (PXE Boot) (opens in a new tab)
Best 2.5G Upgrade
Dell USB-C to 2.5G Ethernet Adapter
buyers prioritizing 2.5g ethernet
Our take Check price for Dell USB-C to 2.5G Ethernet Adapter (opens in a new tab)
| Pick | Best for | Key spec | Price |
|---|---|---|---|
| Buyers prioritizing gigabit link speed | Gigabit link speed | Check price for Dell USB-C to Ethernet Adapter (PXE Boot) (opens in a new tab) |
| buyers prioritizing 2.5g ethernet | 2.5G Ethernet | Check price for Dell USB-C to 2.5G Ethernet Adapter (opens in a new tab) |
Our Picks
Best for IT/PXE Boot1 of 2
Dell USB-C to Ethernet Adapter (PXE Boot) on Amazon (opens in a new tab)
A Gigabit-speed adapter with a built-in driver for easy setup, notable for explicitly enabling PXE Boot on devices lacking onboard Ethernet as long as they have a USB-C port, a genuine IT-deployment feature.
Best for
- Buyers prioritizing gigabit link speed
Why we like it
Compact and portable, positioned as a straightforward way to extend bandwidth by establishing a new wired connection on Dell hardware lacking Ethernet.
Key dimensions & specs
- Gigabit link speed
- Built-in driver, PXE Boot support
- Compact, portable design
Pros
- Explicit PXE Boot support, useful for IT imaging and deployment
- Built-in driver simplifies setup
- Compact and portable for business travel
- Genuine Dell OEM accessory
Cons
- Higher price than generic Gigabit adapters without PXE support
- Limited published detail on OS compatibility beyond PXE use case
Best 2.5G Upgrade2 of 2
Dell USB-C to 2.5G Ethernet Adapter on Amazon (opens in a new tab)
5G step-up from its Gigabit PXE adapter, positioned as a quick and easy replacement adapter for efficient networking on Dell hardware.
Best for
- buyers prioritizing 2.5g ethernet
Why we like it
The listing itself is sparse on extended feature detail, so buyers wanting explicit chipset or driver documentation should check Dell's support site directly before purchasing.
Key dimensions & specs
- 2.5G Ethernet
- Dell OEM accessory
- Quick-connect design
Pros
- Genuine Dell OEM 2.5G adapter
- Straightforward quick-connect design
- Positioned specifically for hassle-free replacement
Cons
- Listing provides limited published chipset or driver detail
- Premium OEM pricing versus third-party 2.5G alternatives
How We Chose These Dell USB-C Ethernet Adapters
Each pick was assessed across 5 criteria weighted for real-world use.
- 5G/5G/10G) and, where published, the specific Realtek, Marvell, or other controller chip driving it, rather than assuming USB-C connector shape implies a speed tier.
- 2 Gen 2 vs Thunderbolt/USB4) and confirmed OS support, since several products in this cluster have real exclusions (Android, Nintendo Switch, older Apple silicon).
- Favored listings that publish honest real-world throughput or explicit host-speed caveats over ones that only quote the theoretical link rate.
- Weighed braided cable construction, aluminum housing, and reinforced connectors, since these adapters see frequent plug/unplug cycles in daily use.
- Prioritized real differences like Wake-on-LAN, PXE boot, PD passthrough wattage, and multiport expansion over marketing language that repeats across nearly identical adapters.
What to Look for in a Dell USB-C Ethernet Adapter
Key buying criteria so you get the right fit the first time.
USB-C is a connector, not a speed
A USB-C port can carry anywhere from 1Gbps to 10Gbps of Ethernet depending on the adapter's chipset and your host's actual USB generation. Check the exact Ethernet speed and required USB mode before assuming any USB-C adapter matches your needs.
Multi-gig speeds need a fast enough USB port
0 (5Gbps) port will not reach its rated Ethernet speed. 2 Gen 2 (10Gbps) port or Thunderbolt/USB4 host.
Check OS and driver requirements before buying
Most Gigabit adapters are driver-free on Windows, macOS, and ChromeOS, but multi-gig adapters often need a manufacturer driver on Windows or specific Linux kernel versions, and some models exclude older Apple silicon chips entirely.
Confirm your specific device isn't excluded
Several adapters in this cluster explicitly do not work with Nintendo Switch, Android, or specific Mac chip generations. Read the compatibility list carefully rather than assuming a USB-C connector guarantees your device will work.
A CAT6 cable matters as much as the adapter
Even a genuine Gigabit-capable adapter will fall back to slower speeds over an old CAT5 cable. Use CAT6 or better for Gigabit, and CAT6A for 5G/10G speeds, to actually realize the adapter's rated performance.
PD passthrough wattage isn't automatically usable
An adapter rated for 100W or 140W Power Delivery passthrough only delivers that much power if you also supply a charger and cable rated for it. The adapter's rating is a ceiling, not a guarantee, without the matching charger.
How to Choose a Dell USB-C Ethernet Adapter
PXE Boot vs Standard Networking
The PXE Boot feature on Dell's Gigabit adapter is specifically useful for IT departments imaging devices without onboard Ethernet, a niche but genuine business use case most consumer adapters don't support.
- IT deployment / device imaging
- Dell's PXE Boot adapter is purpose-built for this exact workflow.
- 5G adapter is the newer, higher-throughput option if you don't need PXE.
Frequently Asked Questions
What is PXE Boot and do I need it?
PXE (Preboot Execution Environment) Boot lets a device boot an operating system image over the network before its own OS loads, commonly used by IT departments to image many computers at once. Most home and general business users don't need this feature.
Bottom Line
Best overall: Dell USB-C to Ethernet Adapter (PXE Boot) — best for it/pxe boot pick in this roundup. See the full verdicts above for every pick, with pros, cons and who each one suits.
Browse all dell usb-c ethernet adapters on Amazon — Prime-eligible options with current pricing.