Product comparison · 2 laptop docks & port replicators

Dell Pro Thunderbolt 4 SD25TB4 vs Dell SD25TB5 Wired Thunderbolt 5 Black

34specifications compared
10differ
24identical
29known for one product only

Key differences

Host interface
- Pro Thunderbolt 4 SD25TB4:Thunderbolt 4
- SD25TB5 Wired Thunderbolt 5 Black:Thunderbolt 5
USB 3.2 Gen 2 (3.1 Gen 2) Type-C ports quantity
- Pro Thunderbolt 4 SD25TB4:2
- SD25TB5 Wired Thunderbolt 5 Black:1
USB Power Delivery up to
- Pro Thunderbolt 4 SD25TB4:130 W
- SD25TB5 Wired Thunderbolt 5 Black:15 W
DisplayPort version
- Pro Thunderbolt 4 SD25TB4:1.4
- SD25TB5 Wired Thunderbolt 5 Black:2.1
Maximum digital resolution
- Pro Thunderbolt 4 SD25TB4:7680 x 4320 pixels
- SD25TB5 Wired Thunderbolt 5 Black:3840 x 2160 pixels
Cable lock slot type
- Pro Thunderbolt 4 SD25TB4:Kensington
- SD25TB5 Wired Thunderbolt 5 Black:Kensington, Noble
LED indicators
- Pro Thunderbolt 4 SD25TB4:Yes
- SD25TB5 Wired Thunderbolt 5 Black:Power
Power supply
- Pro Thunderbolt 4 SD25TB4:180 W
- SD25TB5 Wired Thunderbolt 5 Black:330 W

Side by side

Differences highlightedShow differences only

Comparison of Pro Thunderbolt 4 SD25TB4, SD25TB5
63 specifications	A Dell Pro Thunderbolt 4 SD25TB4 View product	B Dell SD25TB5 Wired Thunderbolt 5 Black Model SD25TB5 View product
Ports & interfaces4 differ
Connectivity technology	Wired	Wired
Host interfaceDiffers	Thunderbolt 4	Thunderbolt 5
USB 3.2 Gen 2 (3.1 Gen 2) Type-A ports quantity	4	4
USB 3.2 Gen 2 (3.1 Gen 2) Type-C ports quantityDiffers	2	1
PowerShareKnown for one	Yes	Unknown — not stated by the source
Number of USB ports with PowerShare supportKnown for one	4	Unknown — not stated by the source
USB Power Delivery (USB PD)	Yes	Yes
USB Power Delivery up toDiffers	130 W	15 W
HDMI ports quantity	1	1
HDMI version	2.1	2.1
DisplayPorts quantity	2	2
DisplayPort versionDiffers	1.4	2.1
Thunderbolt 4 ports quantityKnown for one	2	Unknown — not stated by the source
Microphone in	No	No
Headphone outputs	0	0
DC-in jack	Yes	Yes
USB Type-C DisplayPort Alternate Mode	Yes	Yes
USB 2.0 ports quantityKnown for one	Unknown — not stated by the source	0
USB 3.2 Gen 1 (3.1 Gen 1) Type-A ports quantityKnown for one	Unknown — not stated by the source	0
USB 3.2 Gen 1 (3.1 Gen 1) Type-C ports quantityKnown for one	Unknown — not stated by the source	1
Thunderbolt 5 ports quantityKnown for one	Unknown — not stated by the source	2
Networkidentical
Ethernet LAN	Yes	Yes
Ethernet LAN (RJ-45) ports	1	1
Ethernet LAN data rates	2500 Mbit/s	2500 Mbit/s
Wake-on-LAN ready	Yes	Yes
Performance3 differ
Product colour	Black	Black
Card reader integrated	No	No
HD typeKnown for one	8K Ultra HD	Unknown — not stated by the source
Maximum digital resolutionDiffers	7680 x 4320 pixels	3840 x 2160 pixels
Number of displays supportedKnown for one	4	Unknown — not stated by the source
Cable lock slot	Yes	Yes
Cable lock slot typeDiffers	Kensington	Kensington, Noble
LED indicatorsDiffers	Yes	Power
Number of storage drives supportedKnown for one	Unknown — not stated by the source	4
Data transfer rateKnown for one	Unknown — not stated by the source	1.25 Gbit/s
Maximum refresh rateKnown for one	Unknown — not stated by the source	120 Hz
Power1 differ
Power source typeKnown for one	DC	Unknown — not stated by the source
Power connectorKnown for one	USB Type-C	Unknown — not stated by the source
Power supplyDiffers	180 W	330 W
Softwareidentical
Windows operating systems supported	Windows 10, Windows 11	Windows 10, Windows 11
Mac operating systems supportedKnown for one	Yes	Unknown — not stated by the source
Linux operating systems supported	Yes	Yes
Other operating systems supported	ChromeOS	ChromeOS
Mobile operating systems supportedKnown for one	Unknown — not stated by the source	Yes
Operational conditionsidentical
Operating temperature (T-T)Known for one	0 - 35 °C	Unknown — not stated by the source
Storage temperature (T-T)Known for one	-20 - 60 °C	Unknown — not stated by the source
Operating relative humidity (H-H)Known for one	10 - 80%	Unknown — not stated by the source
Storage relative humidity (H-H)Known for one	5 - 90%	Unknown — not stated by the source
Weight & dimensions2 differ
Width	90 mm	90 mm
DepthDiffers	35.2 mm	35.3 mm
Height	205 mm	205 mm
WeightDiffers	579 g	632 g
Packaging dataidentical
Quantity per pack	1 pc(s)	1 pc(s)
Packaging contentidentical
Quick start guide	Yes	Yes
AC adapter includedKnown for one	Unknown — not stated by the source	Yes
Cables includedKnown for one	Unknown — not stated by the source	AC
Carbon footprintidentical
Carbon emissions, end-of-life (kg of CO2e)Known for one	1.12	Unknown — not stated by the source
Carbon emissions, energy usage (kg of CO2e)Known for one	60.47	Unknown — not stated by the source
Carbon emissions, logistics (kg of CO2e)Known for one	1.97	Unknown — not stated by the source
Carbon emissions, manufacturing (kg of CO2e)Known for one	30.05	Unknown — not stated by the source
PAIA versionKnown for one	GaBi version 1, 2025	Unknown — not stated by the source
Total carbon footprint (kg of CO2e)Known for one	93.6	Unknown — not stated by the source
Other featuresidentical
Special featuresKnown for one	Unknown — not stated by the source	Power Deliver - 240W (non-Dell Systems) Power Delivery - 300W (Dell Systems)

A dash means the value is not stated by the source. Unknown values are never counted for or against a product, and there is no overall score.

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