Product comparison · 2 laptop docks & port replicators

Lenovo 04W3948 laptop dock/port replicator Docking Black vs Lenovo ThinkPad Ultra Dock - 135W

Key differences

HDMI ports quantity
- 04W3948 laptop dock/port replicator Docking Black:0
- ThinkPad Ultra Dock - 135W:1
DisplayPorts quantity
- 04W3948 laptop dock/port replicator Docking Black:1
- ThinkPad Ultra Dock - 135W:2
Operating temperature (T-T)
- 04W3948 laptop dock/port replicator Docking Black:5 - 43 °C
- ThinkPad Ultra Dock - 135W:0 - 43 °C
Weight
- 04W3948 laptop dock/port replicator Docking Black:910 g
- ThinkPad Ultra Dock - 135W:920 g

Differences highlightedShow differences only

Comparison of 04W3948, ThinkPad Ultra Dock - 135W
33 specifications	A Lenovo 04W3948 laptop dock/port replicator Docking Black Model 04W3948 View product	B Lenovo ThinkPad Ultra Dock - 135W View product
Ports & interfaces2 differ
HDMI ports quantityDiffers	0	1
DisplayPorts quantityDiffers	1	2
Combo headphone/mic portKnown for one	Yes	Unknown — not stated by the source
HDMI versionKnown for one	Unknown — not stated by the source	1.4
DC-in jackKnown for one	Unknown — not stated by the source	Yes
Performanceidentical
Cable lock slotKnown for one	Yes	Unknown — not stated by the source
CompatibilityKnown for one	T440, T440s, L540, T440p, T540p, L450, L540, L440, X240, X250, T450s	Unknown — not stated by the source
CertificationKnown for one	CB, CE,UL, FCC, EC-DoC, sDOC, NOM, GOST, UkrSEPRO, AS/NZS DoC, VCCI, BSMI, KC	Unknown — not stated by the source
Plug and PlayKnown for one	Unknown — not stated by the source	Yes
Operational conditions1 differ
Operating temperature (T-T)Differs	5 - 43 °C	0 - 43 °C
Weight & dimensions1 differ
WeightDiffers	910 g	920 g
Logistics dataidentical
Harmonized System (HS) codeKnown for one	84733020	Unknown — not stated by the source
Poweridentical
Power consumption (typical)Known for one	Unknown — not stated by the source	135 W
Other featuresidentical
Charging connectorKnown for one	Unknown — not stated by the source	Yes

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.