Dell WD19S vs WD19TBS - Dock Comparison 2026

Dell WD19S vs WD19TBS: Same Family, Very Different Bandwidth

The Dell WD19S and Dell WD19TBS look like close relatives because they are both part of Dell’s WD19 docking family. They share the same enterprise desk-dock idea: Dell laptop charging, DisplayPort and HDMI outputs, USB-A, USB-C, Gigabit Ethernet, Dell firmware tools, and a compact black chassis for office setups.

The difference is the host connection. The WD19S is a USB-C dock using DisplayPort Alt Mode at up to 10 Gbps. The WD19TBS is a Thunderbolt 3 dock at 40 Gbps. That one spec changes the display story, the laptop compatibility story, and the kind of buyer each dock makes sense for.

The short verdict: The Dell WD19S narrowly wins overall in our database because it scores 6.8/10 versus 6.5/10 for the WD19TBS, and it is a sensible, current-feeling choice for straightforward Dell USB-C office docking. But if you need dual 4K@60Hz without depending on HBR3 plus DSC support, the WD19TBS is the technically stronger dock.

Quick Specs Comparison

Connectivity: USB-C vs Thunderbolt 3

This is the core decision.

The WD19S connects through USB 3.2 Gen 2 Type-C with DisplayPort Alt Mode. That means it does not need DisplayLink software or a Thunderbolt controller, but it also depends heavily on the host laptop’s DisplayPort bandwidth. Dell’s own notes for the WD19S repeatedly hinge on whether the laptop supports HBR3 with Display Stream Compression.

The WD19TBS connects over Thunderbolt 3 at 40 Gbps. That gives it much more room for displays and data at the same time. It is still an older Thunderbolt 3 dock, not Thunderbolt 4, but the raw connection is a major upgrade over the USB-C WD19S.

Connectivity winner: Dell WD19TBS. Thunderbolt 3’s 40 Gbps link is the reason to buy it.

Display Support

The WD19S has an unusual spec sheet because Dell lists up to four displays, but only under strict host conditions. With an HBR3 host and Display Stream Compression, it can handle dual 4K@60Hz and triple QHD@60Hz. Dell also lists a quad-display mode with 3x QHD@60Hz plus 1x HD@60Hz when a fourth display is daisy-chained through a DisplayPort monitor. On older HBR2 systems, the WD19S can drop as low as single 4K@30Hz or dual 1080p@60Hz.

The WD19TBS is simpler. It supports dual 4K@60Hz over Thunderbolt 3 and a single 5K@60Hz mode via dual DisplayPort 1.4 with an HBR3 host. Its maximum display count is lower, but its common dual-monitor use case is more predictable.

Both docks have a port limitation worth knowing: HDMI and the rear USB-C multifunction DisplayPort output cannot be active as displays at the same time on the WD19 family design. For dual monitors, the two rear DisplayPort 1.4 outputs are usually the most reliable path.

Display winner: Dell WD19TBS. The WD19S can do impressive things on the right host, but the WD19TBS is the safer dual 4K dock.

Charging and Power

For compatible Dell laptops, both docks can reach the key number: 130W charging. That is the big advantage of buying into Dell’s own dock ecosystem. Standard USB-C Power Delivery docks usually top out lower, and non-Dell laptops connected to either of these Dell docks receive up to 90W.

The WD19S needs the right adapter version to reach Dell’s 130W mode. Its YAML notes that the 180W adapter can deliver up to 130W to compatible Dell laptops, while the 130W adapter version provides up to 90W to Dell systems. The WD19TBS uses Dell ExpressCharge and also requires its external 180W AC adapter.

Power winner: Tie. For Dell laptops, both can do 130W. For non-Dell laptops, both top out at 90W.

Ports and Everyday Desk Use

The WD19S gives you two DisplayPort 1.4 outputs, HDMI 2.0, a rear USB-C multifunction DisplayPort output, two USB-C 3.2 ports, three USB-A 3.2 ports, and Gigabit Ethernet. There is no 3.5mm audio jack and no card reader.

The WD19TBS is extremely similar: two DisplayPort 1.4 outputs, HDMI 2.0, two USB-C 3.2 ports, three USB-A 3.2 ports, and Gigabit Ethernet. It also has no 3.5mm audio jack because the “S” variant removed the audio jack from the older WD19TB design. It has no SD or microSD card reader.

In practical terms, neither dock is a creator dock. If you need SD cards, microSD, audio, or 2.5GbE, you will need USB adapters or a more feature-rich dock.

Port winner: Dell WD19S, slightly. Its rear USB-C multifunction DisplayPort output gives it a little more physical display flexibility, although HDMI and rear USB-C display output are toggled.

Compatibility: Dell, Windows, Mac, Linux, and ChromeOS

For Windows users with Dell Latitude, Precision, and XPS systems, both docks fit the Dell ecosystem well. Dell firmware updates, MAC address pass-through, Wake-on-LAN, and power button integration are the kind of features that matter in office fleets.

The WD19S is best treated as a Dell/Windows USB-C dock. It can work for basic USB, Ethernet, charging, and one display on macOS, but macOS multi-monitor support is limited because this class of USB-C dock relies on MST-style display routing.

The WD19TBS works with macOS over Thunderbolt 3, but Dell does not officially support Mac. Its YAML specifically notes that base M1, M2, and M3 MacBook Air/Pro models are limited to one external display because of Apple Silicon limits. M1 Pro/Max and later chips can support more displays, but Dell support will not troubleshoot Mac-specific problems.

Compatibility winner: Depends. WD19S for Dell USB-C fleets. WD19TBS for Thunderbolt laptops and Mac users who understand the display limits.

Price and Value

The WD19TBS has a listed MSRP of $301.75, but the YAML verdict notes that renewed units are commonly found around $80-120. That makes it attractive if you want Thunderbolt 3 performance without paying for a newer Thunderbolt 4 dock.

The WD19S is the less ambitious dock, but it can be the better value if it is meaningfully cheaper and your laptop supports the display mode you need. Our WD19S review also gives it the higher score: 6.8/10 versus 6.5/10 for the WD19TBS.

The catch is simple: do not buy the WD19S just because it is cheaper if you need guaranteed dual 4K@60Hz. The cost savings disappear quickly if your USB-C laptop falls back to dual 1080p or 4K@30Hz.

Value winner: Dell WD19S for simple Dell office setups. Dell WD19TBS if you specifically need Thunderbolt bandwidth.

Verdict: WD19S Wins Overall, WD19TBS Wins for Dual 4K

The Dell WD19S is the better default pick if you have a compatible Dell USB-C business laptop, need basic office docking, want 130W Dell charging with the right adapter, and do not need Thunderbolt bandwidth. It is not flashy, but its 6.8/10 score reflects a practical dock that still makes sense for many Dell desks.

The Dell WD19TBS is the better technical dock. Thunderbolt 3 at 40 Gbps, dual 4K@60Hz support, and a single 5K@60Hz mode make it the more capable option for display-heavy setups. Its lower 6.5/10 score reflects age, Thunderbolt 3 instead of Thunderbolt 4, fan noise reports, and the fact that Dell’s newer WD22TB4 is a better new-buy option.

Choose the Dell WD19S if:

• You have a Dell USB-C laptop and want a straightforward office dock
• Your monitor setup is one display, dual 1080p, dual QHD, or a confirmed HBR3 + DSC dual 4K setup
• You want Dell fleet features like firmware tools, Wake-on-LAN, and MAC address pass-through
• You can buy it cheaper than a Thunderbolt dock
• You do not need SD cards, audio, or 2.5GbE

Choose the Dell WD19TBS if:

• Your laptop has Thunderbolt 3 or Thunderbolt 4
• You want dual 4K@60Hz with fewer host-bandwidth caveats
• You are buying renewed and find it in the $80-120 range noted in our review
• You want 130W Dell charging plus Thunderbolt bandwidth
• You do not need Thunderbolt 4 certification

For more background, read our individual Dell WD19S review and Dell WD19TBS review. If you are shopping newer Dell Thunderbolt models too, compare against the Dell WD22TB4 before buying.