Plugable TBT4-UDX1 vs TBT4-UD5 - Thunderbolt 4 Dock Comparison 2026

Plugable TBT4-UDX1 vs TBT4-UD5: two good docks, two different desk layouts

The Plugable TBT4-UDX1 and Plugable TBT4-UD5 are close enough on paper that the choice can look annoying at first. Both are native Thunderbolt 4 and USB4 docks. Both connect at 40 Gbps. Both support dual 4K@60Hz displays on compatible hosts. Both charge the laptop at 96W, include a 1.0m Thunderbolt 4 cable, avoid DisplayLink drivers, and carry the same 24-month limited warranty.

The difference is not raw Thunderbolt speed. It is port philosophy. The TBT4-UDX1 is the dock for people who want a two-monitor setup plus room for Thunderbolt peripherals. It gives you two downstream Thunderbolt 4 ports, 2.5 Gigabit Ethernet, one built-in HDMI port, and an included USB-C to HDMI adapter for the second monitor. The TBT4-UD5 is the cleaner desk dock for people with normal HDMI monitors. It gives you two HDMI ports built in, SD and microSD readers, one downstream Thunderbolt 4 port, Gigabit Ethernet, and a much lower MSRP.

The short verdict: the Plugable TBT4-UD5 wins for most buyers. Its product score is 8.2 versus 7.8 for the TBT4-UDX1, and the factual value case is hard to ignore: $199.95 MSRP, 13 ports, two built-in HDMI outputs, SD and microSD readers, and the same 96W certified host charging. The TBT4-UDX1 is still the better pick if you need 2.5GbE or two downstream Thunderbolt 4 ports, but most two-monitor desks will be easier and cheaper with the TBT4-UD5.

If you are still choosing between native Thunderbolt docks and driver-based docks, read our USB-C vs Thunderbolt docking station guide. For a broader shortlist, see our best Thunderbolt 4 docking stations page.

Quick specs comparison

Display support: same ceiling, different cabling

Both docks support the same headline display modes from their YAML files: two 4K displays at 60Hz, or one 8K display at 30Hz through a compatible Thunderbolt display path. Neither dock is a DisplayLink workaround, so both depend on the laptop’s native graphics and external display support.

The TBT4-UDX1 handles dual 4K by using one built-in HDMI 2.0a port and one downstream Thunderbolt 4 port with the included USB-C to HDMI adapter. That is a reasonable setup, and Plugable deserves credit for including the adapter. You are not forced to buy a second cable accessory on day one. The trade-off is that one of the two downstream Thunderbolt ports becomes part of the monitor setup if you use two HDMI displays.

The TBT4-UD5 is more direct. Its YAML lists two built-in HDMI 2.0 ports for dual 4K@60Hz on Thunderbolt 4, Thunderbolt 5, or USB4 hosts that support two external displays. If your desk already has two HDMI monitors, this is the easier dock. Plug in both monitors and keep the single downstream Thunderbolt 4 port free for storage, a USB-C monitor, or an 8K display path.

Mac limits are the same kind of problem on both. Base M1 and M2 MacBook Air and MacBook Pro models support one external display through native Thunderbolt docks. The TBT4-UD5 YAML adds that base M3 models need clamshell mode for dual displays, and lists Pro/Max chips plus newer base M4 and M5 systems as dual-display capable. The TBT4-UDX1 YAML gives similar Apple Silicon guidance, including base M1 and M2 limits and base M3 clamshell behavior.

Display winner: Plugable TBT4-UD5. The capability is effectively tied, but the UD5’s two built-in HDMI ports make a normal dual-monitor setup cleaner.

Thunderbolt expansion: the UDX1 fights back

This is the strongest reason to buy the TBT4-UDX1. It has two downstream Thunderbolt 4 ports, and each can provide up to 15W. Those ports can handle Thunderbolt storage, USB4 devices, displays, and other high-bandwidth gear. If your desk includes a Thunderbolt SSD, a capture device, or a USB-C monitor, the UDX1 feels more flexible than the spec table suggests.

The TBT4-UD5 has one downstream Thunderbolt 4 port. That is still useful, but it is one port doing several possible jobs. If you use it for an 8K display path, it is no longer available for Thunderbolt storage. If you use it for a bus-powered SSD, you may need to use the built-in HDMI ports for displays. For most office desks, that is fine. For heavier Thunderbolt setups, it can feel tight.

The UDX1 has its own power budget caveat. Its YAML says host charging drops from 96W to 81W when one downstream Thunderbolt device is attached, and to 66W when two are attached. That does not ruin the dock, but it matters if you run a larger laptop and bus-powered Thunderbolt gear from the dock at the same time. The UD5 YAML does not list the same downstream Thunderbolt power reduction, but it also only has one downstream Thunderbolt port.

Expansion winner: Plugable TBT4-UDX1. Two downstream Thunderbolt 4 ports are the whole reason to consider it over the cheaper UD5.

USB, card readers, audio, and daily peripherals

The two docks look similar until you count what normal accessories actually need.

The TBT4-UDX1 has four USB-A ports. One front USB-A 3.2 port provides 7.5W charging, and three more USB-A 3.2 ports sit behind it in the YAML. It also has two USB-C 4.0 / Thunderbolt 4 downstream ports, one HDMI output, 2.5 Gigabit Ethernet, a 3.5mm combo audio jack, and one UHS-II SD card reader.

The TBT4-UD5 also has four USB-A ports, split between USB-A 3.0 and USB-A 3.2 entries in the product data. It adds one USB-C 3.2 port and one USB-C 4.0 / Thunderbolt 4 downstream port. It has two HDMI ports, Gigabit Ethernet, a 3.5mm combo audio jack, and both SD and microSD UHS-II card readers.

That microSD reader is a small but real advantage. The UDX1 YAML lists lack of microSD as a con, with a USB reader as the workaround. The UD5 includes it. If you work with cameras, drones, action cams, or handheld gaming storage cards, it is one less adapter on the desk.

Audio is a tie. Both docks list one 3.5mm combo audio jack. Neither dock is the right choice if you need separate headphone and microphone jacks, balanced audio, or specialized audio routing. For a headset or basic speakers, either one is fine.

Daily port winner: Plugable TBT4-UD5. The UDX1 has better Thunderbolt expansion, but the UD5 gives most desks the more complete fixed layout: dual HDMI, SD, microSD, USB-A, USB-C, audio, and Ethernet.

Networking: 2.5GbE versus Gigabit

Networking is the cleanest UDX1 win. Its YAML lists RJ45 Ethernet with 1 Gbps and 2.5 Gbps speeds. The UD5 lists RJ45 Ethernet at 1 Gbps only.

That difference matters if your network is ready for it. A 2.5GbE port helps when you move large files to a NAS, edit from shared storage, back up to a local server, or use a faster multi-gig internet connection. It does not matter much if your router, switch, NAS, and internet plan are all Gigabit or slower.

Plugable also notes a possible Ethernet driver detail on the UDX1. The YAML says Windows users may need the Realtek Ethernet driver installed manually for best network performance. The UD5 notes that Windows users should keep Thunderbolt, graphics, or Ethernet drivers current. Neither is unusual for Thunderbolt docks, but it is worth knowing before blaming the dock for a slow wired connection.

Networking winner: Plugable TBT4-UDX1. If your desk needs faster wired networking, the UD5’s lower price will not replace a built-in 2.5GbE port.

Charging and power delivery

Both docks are close on charging. The TBT4-UDX1 lists 96W host Power Delivery from a 135W external power adapter. The TBT4-UD5 is marketed as a 100W Thunderbolt 4 dock, and its YAML lists certified host output at 96W. In practical terms, both are aimed at ultrabooks, MacBook Air models, MacBook Pro 14-inch class machines, and many business laptops.

The TBT4-UDX1 has the more explicit downside. Host charging can drop to 81W or 66W when downstream Thunderbolt devices draw power. That is expected behavior when a dock has to share a limited adapter budget, but buyers comparing the headline 96W figures should not miss it. If you plan to connect two bus-powered Thunderbolt SSDs and a larger laptop, the UDX1 may not give the laptop the full charging headroom.

The TBT4-UD5 does not get a charging win from a higher wattage number. It wins because it offers the same 96W certified host output at a lower MSRP, and because its single downstream Thunderbolt port creates fewer ways to drain that part of the power budget. Large workstation laptops may still need their own charger with either dock.

Charging winner: Plugable TBT4-UD5, narrowly. The wattage is the same on paper, but the UD5 delivers it in a cheaper and simpler dock.

Compatibility and driver behavior

Both docks have driver type listed as None. That is one of the best things about this matchup. You are not choosing between native Thunderbolt and DisplayLink software. Both are native docks, so you avoid DisplayLink installation, display compression behavior, CPU overhead, protected-video quirks, and macOS screen recording permission prompts.

The downside is also the same: native docks cannot create display outputs your laptop does not support. Base M1 and M2 MacBooks stay at one external display. Base M3 behavior depends on clamshell mode in Plugable’s notes. Windows laptops need the right Thunderbolt, USB4, graphics, firmware, and driver stack to behave well. That is normal, but it makes host compatibility more important than brand loyalty.

The UD5 has a slightly broader host note in its YAML. It is listed for Thunderbolt 4, Thunderbolt 5, or USB4 hosts at 40Gbps, with Thunderbolt 3 and non-Thunderbolt USB-C hosts limited to one external display. The UDX1 YAML lists built-in Thunderbolt 4 or USB4 as a system requirement and says standard USB-C hosts without USB4 or Thunderbolt are not supported. If you have an older or ambiguous USB-C laptop, read Plugable’s compatibility notes carefully before buying either one.

For Mac buyers, our best docks for MacBook Pro guide is useful because it separates native Thunderbolt limits from DisplayLink workarounds.

Compatibility winner: tie. Both are driverless native Thunderbolt docks, and both inherit the display limits of the host computer.

Price and value

This is where the comparison stops being subtle. The TBT4-UDX1 has a $349.99 MSRP. The TBT4-UD5 has a $199.95 MSRP. That is a $150.04 gap in favor of the UD5.

The UDX1 earns part of that premium with 2.5 Gigabit Ethernet and a second downstream Thunderbolt 4 port. Those are real upgrades. If you need them, you need them. A separate Thunderbolt hub or 2.5GbE adapter can eat into the savings from the UD5.

But if your desk is two HDMI monitors, a keyboard, mouse, webcam, Ethernet, SD or microSD cards, a headset, and maybe one fast USB-C or Thunderbolt device, the UD5 is a better value. It has the higher product score, more total ports, easier monitor cabling, the same host charging rating, and a newer release window. It also carries the same 24-month limited warranty.

Value winner: Plugable TBT4-UD5. The UDX1 is more flexible for Thunderbolt expansion and networking, but the UD5 is the better buy for the desk setup most people are actually building.

Verdict: the UD5 wins for most desks, the UDX1 wins for Thunderbolt-heavy desks

The Plugable TBT4-UD5 wins this comparison because the product data gives it the stronger overall case: 8.2 score versus 7.8, lower MSRP, 13-port layout, two built-in HDMI ports, SD and microSD card readers, native Thunderbolt 4 / USB4 operation, and 96W certified laptop charging. It is the easier recommendation for a dual HDMI workstation.

The Plugable TBT4-UDX1 still has a clear lane. It is the better dock if your desk needs two downstream Thunderbolt 4 ports or 2.5 Gigabit Ethernet. Those specs are not cosmetic. They change what the dock can do with fast storage, USB4 gear, and local networks above Gigabit.

Choose the Plugable TBT4-UD5 if:

• You want the better overall score and lower MSRP
• You use one or two HDMI monitors and want both HDMI ports built in
• You want SD and microSD UHS-II readers in the dock
• One downstream Thunderbolt 4 port is enough for your setup
• Gigabit Ethernet is enough for your network
• You want a practical Thunderbolt 4 dock without paying for ports you may not use

Choose the Plugable TBT4-UDX1 if:

• You need two downstream Thunderbolt 4 ports for storage, USB4 devices, or displays
• Your wired network can use 2.5 Gigabit Ethernet
• You are comfortable using the included USB-C to HDMI adapter for a second HDMI monitor
• You do not need a built-in microSD reader
• You understand that host charging can drop when downstream Thunderbolt devices draw power
• You prefer Thunderbolt expansion over the UD5’s simpler dual HDMI layout

For individual reviews, read our Plugable TBT4-UDX1 review and Plugable TBT4-UD5 review. If you are comparing Plugable’s larger native Thunderbolt dock too, the Plugable TBT4-UDZ vs TBT4-UDX1 page explains how Plugable’s quad-display model fits into the lineup.