DELL Pro Thunderbolt 4 SD25TB4 Wired Black

Engineered for success
Maximise your AI PC productivity by seamlessly using Gen AI tools across up to four 4K 60Hz displays, staying powered with up to 130W power delivery, and connecting all your peripherals effortlessly.
Video Player is loading.

Most manageable and secure
Elevate the IT management experience by directly managing your smart docks from the Dell Device Management Console – no PC connection or software required.
Most manageable commercial dock
Reduce IT efforts by scheduling updates during off-hours, while ensuring fleetwide firmware compliance and eliminating end user interruptions.
Effortless maintenance
Remotely configure, deploy and update smart Docks over Wi-Fi via industry’s first holistic peripheral management solution.
Unlock out-of-band management on select Intel vPro® PCs with Intel® Active Management Technology (Intel® AMT) over Thunderbolt via the connected dock.
Work Smarter
Keep users working confidently with enterprise-grade WPA-3 192-bit encryption for secure Wi-Fi communication. Safeguard your sensitive data with tamper-resistant, hardware-based encryption built into your Dell Pro Thunderbolt 4 Smart Dock.

Connect your way
Configure your workspace to your liking with an ambidextrous USB-C cable that can be routed left or right.

Designed for sustainability
The Dell Pro Thunderbolt 4 Smart Dock is built with at least 65% post-consumer recycled materials and packaged with 100% recycled or renewable packaging.
| Ports & interfaces | |
|---|---|
| USB 3.2 Gen 2 (3.1 Gen 2) Type-A ports quantity | 4 |
| USB 3.2 Gen 2 (3.1 Gen 2) Type-C ports quantity | 2 |
| Host interface | Thunderbolt 4 |
| Ethernet LAN (RJ-45) ports | 1 |
| HDMI ports quantity | 1 |
| HDMI version | 2.1 |
| DisplayPorts quantity | 2 |
| Microphone in | No |
| Headphone outputs | 0 |
| DC-in jack | Yes |
| Connectivity technology | Wired |
| USB Power Delivery (USB PD) | Yes |
| PowerShare | Yes |
| Number of USB ports with PowerShare support | 4 |
| USB Power Delivery up to | 130 W |
| DisplayPort version | 1.4 |
| Thunderbolt 4 ports quantity | 2 |
| USB Type-C DisplayPort Alternate Mode | Yes |
| Network | |
| Wake-on-LAN ready | Yes |
| Ethernet LAN | Yes |
| Ethernet LAN data rates | 2500 Mbit/s |
| Ethernet LAN (RJ-45) ports | 1 |
| Performance | |
| Maximum digital resolution | 7680 x 4320 pixels |
| Number of displays supported | 4 |
| Product colour | Black |
| Card reader integrated | No |
| Cable lock slot | Yes |
| LED indicators | Yes |
| Cable lock slot type | Kensington |
| HD type | 8K Ultra HD |
| Technical details | |
| Product colour | Black |
| Cable lock slot | Yes |
| Storage | |
| Card reader integrated | No |
| Power | |
| Power source type | DC |
| Power connector | USB Type-C |
| Power supply | 180 W |
| Software | |
|---|---|
| Windows operating systems supported | Windows 10, Windows 11 |
| Mac operating systems supported | Yes |
| Linux operating systems supported | Yes |
| Other operating systems supported | ChromeOS |
| Indication | |
| LED indicators | Yes |
| Operational conditions | |
| Operating temperature (T-T) | 0 - 35 °C |
| Storage temperature (T-T) | -20 - 60 °C |
| Operating relative humidity (H-H) | 10 - 80% |
| Storage relative humidity (H-H) | 5 - 90% |
| Weight & dimensions | |
| Weight | 579 g |
| Width | 90 mm |
| Depth | 35.2 mm |
| Height | 205 mm |
| Design | |
| Windows operating systems supported | Windows 10, Windows 11 |
| Mac operating systems supported | Yes |
| Product colour | Black |
| Cable lock slot | Yes |
| LED indicators | Yes |
| Cable lock slot type | Kensington |
| Packaging data | |
| Quantity per pack | 1 pc(s) |
| Packaging content | |
| Quick start guide | Yes |
| Quantity per pack | 1 pc(s) |
-
Hypertec ProDock Station - Universal Multi-Display Docking StationSpecial Price £170.87 £205.04 Regular Price £297.16 £356.59 -
Kensington SD5000T5 EQ Thunderbolt 5 Triple 4K Docking Station with 140W PD - Windows/macOSSpecial Price £264.29 £317.15 Regular Price £459.64 £551.57 -
StarTech.com USB C Dock - 4K 60Hz Quad Monitor DisplayPort & HDMI - Universal USB-C Docking Station with 100W Power Delivery - USB Hub with 1x USB Type-C & 3x USB-A, Ethernet, AudioSpecial Price £164.23 £197.08 Regular Price £285.62 £342.74 -
Targus DOCK710EUZ laptop dock/port replicator USB 3.2 Gen 2 (3.1 Gen 2) Type-C BlackSpecial Price £241.75 £290.10 Regular Price £420.44 £504.53 -
HP USB-C G5 Essential DockSpecial Price £164.52 £197.42 Regular Price £286.12 £343.34 -
DICOTA D31951-UK laptop dock/port replicator Wired USB Type-C BlackSpecial Price £177.32 £212.78 Regular Price £308.38 £370.06 -
StarTech.com Thunderbolt 3 PCIe Expansion Chassis, External Enclosure with One PCI Express Slot, PCIe Box for Laptops/Desktops/All-In-Ones, 5K/4K Output Via TB3/DP Ports, TAA CompliantSpecial Price £234.58 £281.50 Regular Price £407.96 £489.55 -
Origin Storage WD19S-130W Wired USB 3.2 Gen 2 (3.1 Gen 2) Type-C BlackSpecial Price £189.44 £227.33 Regular Price £329.46 £395.35 -
V7 DOCKUCPT3D laptop dock/port replicator Wired USB 3.2 Gen 2 (3.1 Gen 2) Type-C BlackSpecial Price £210.35 £252.42 Regular Price £365.82 £438.98 -
Lindy DST-Pro Universal, USB-C and Type A Hybrid Laptop Docking Station - 4K HDMI, 2x4K (DP or HDMI)Special Price £207.75 £249.30 Regular Price £361.30 £433.56 -
Lenovo ThinkPad Universal Thunderbolt 4 Wired BlackSpecial Price £248.42 £298.10 Regular Price £432.04 £518.45 -
Kensington SD5760T Thunderbolt 4 Dual 4K Docking Station with 96W Power DeliverySpecial Price £227.63 £273.16 Regular Price £395.88 £475.06 -
Targus DOCK460EUZ laptop dock/port replicator Wired USB4 BlackSpecial Price £210.51 £252.61 Regular Price £366.10 £439.32 -
StarTech.com Universal USB4 & Thunderbolt 4 Docking Station, Quad Display on Windows, Dual Display on MacBook, HDMI DP Dock with 98W Laptop ChargingSpecial Price £205.17 £246.20 Regular Price £356.82 £428.18 -
Targus HDTB4D-EU laptop dock/port replicator Docking Thunderbolt 4 GreySpecial Price £189.18 £227.02 Regular Price £329.00 £394.80 -
Kensington SD5920T EQ Thunderbolt 4 Quad 4K Hybrid Dock with DisplayLink® TechnologySpecial Price £190.29 £228.35 Regular Price £330.94 £397.13 -
i-tec Universal 6x 4K/60Hz Display Docking Station + Power Delivery 140WSpecial Price £225.02 £270.02 Regular Price £391.34 £469.61 -
i-tec Universal 5x 4K/60Hz Display Docking Station + Power Delivery 100WSpecial Price £167.33 £200.80 Regular Price £291.00 £349.20 -
i-tec Thunderbolt5 Quattro Display Docking Station, 5x USB, 2.5 GLAN + Power Delivery 140WSpecial Price £219.25 £263.10 Regular Price £381.30 £457.56 -
Origin Storage Lenovo 40B20135UK laptop dock/port replicator Wired USB 3.2 Gen 1 (3.1 Gen 1) Type-A + Type-C Black EUSpecial Price £228.85 £274.62 Regular Price £398.00 £477.60 -
i-tec USB-C KVM Dock PRO for Three Hosts, Dual Video, with 2x Power Delivery, max 92WSpecial Price £173.10 £207.72 Regular Price £301.04 £361.25 -
StarTech.com Triple-Monitor USB4 Docking Station, 4K 60Hz HDMI or DisplayPort, 100W Laptop Charging, 2.5GbE, USB-C Multi-Monitor Dock, DriverlessSpecial Price £187.80 £225.36 Regular Price £326.60 £391.92 -
ASUS Triple 4K Thunderbolt 4 Dock DC500 Wired BlackSpecial Price £225.76 £270.91 Regular Price £392.62 £471.14 -
Ugreen USB-C Docking Station 12-in-1 Wired SilverSpecial Price £217.80 £261.36 Regular Price £378.78 £454.54 -
StarTech.com Triple-Monitor USB-C Docking Station, 140W Laptop Charging Dock for MacBook Pro and Windows, 4K 60Hz HDMI or DisplayPort, TAASpecial Price £180.63 £216.76 Regular Price £314.14 £376.97 -
HP Thunderbolt 4 100W G6 DockSpecial Price £165.81 £198.97 Regular Price £288.36 £346.03 -
NewHP Thunderbolt 4 Ultra 180W G6 DockSpecial Price £206.86 £248.23 Regular Price £359.76 £431.71 -
Kensington AD4010T4 Thunderbolt 4 and USB4 Quad Video Docking Station - 98W PD - DP/HDMI - Windows/macOSSpecial Price £262.86 £315.43 Regular Price £457.14 £548.57 -
StarTech.com Universal Laptop Docking Station, Hybrid USB-C & USB-A Dock, Dual 4K DP & HDMI, 60W PD, Mac / Windows / Chrome OS, 4x USB 5Gbps Hub, GbESpecial Price £84.38 £101.26 Regular Price £146.74 £176.09 -
ALOGIC DX2 Dual 4K Display Universal Docking Station – with 65W Power DeliverySpecial Price £167.72 £201.26 Regular Price £291.68 £350.02 -
ALOGIC DX3 Triple 4K Display Universal Docking Station – with 100W Power DeliverySpecial Price £203.23 £243.88 Regular Price £353.44 £424.13 -
Lenovo ThinkPad Universal Thunderbolt 4 Wired BlackSpecial Price £197.40 £236.88 Regular Price £343.30 £411.96 -
StarTech.com Laptop Docking Module for Conference Table Connectivity BoxSpecial Price £142.38 £170.86 Regular Price £247.62 £297.14 -
Targus DOCK570EUZ laptop dock/port replicator Wired BlackSpecial Price £273.39 £328.07 Regular Price £475.46 £570.55 -
Targus DOCK430EUZ laptop dock/port replicator Wired BlackSpecial Price £88.01 £105.61 Regular Price £153.06 £183.67 -
Belkin Thunderbolt 4 Dock Pro Wired BlackSpecial Price £260.11 £312.13 Regular Price £452.36 £542.83 -
Belkin USB-C 4K Dock 85WSpecial Price £197.90 £237.48 Regular Price £344.18 £413.02 -
Lenovo ThinkPad Universal Thunderbolt 4 Smart Dock Wired BlackSpecial Price £295.68 £354.82 Regular Price £514.22 £617.06 -
Lenovo 40B20135UK laptop dock/port replicator Wired USB 3.2 Gen 1 (3.1 Gen 1) Type-A + Type-C BlackSpecial Price £226.69 £272.03 Regular Price £394.24 £473.09 -
Origin Storage WD19S-180W Wired USB 3.2 Gen 2 (3.1 Gen 2) Type-C BlackSpecial Price £245.90 £295.08 Regular Price £427.66 £513.19 -
ALOGIC TB4D3TB laptop dock/port replicator Wired Thunderbolt 4 BlackSpecial Price £132.26 £158.71 Regular Price £230.02 £276.02 -
V7 DOCKUSBC laptop dock/port replicator Docking USB 3.2 Gen 1 (3.1 Gen 1) Type-A BlackSpecial Price £204.96 £245.95 Regular Price £356.46 £427.75 -
ALOGIC DUPRDX2-100 laptop dock/port replicator Wired USB 3.2 Gen 1 (3.1 Gen 1) Type-C Black, GreySpecial Price £182.51 £219.01 Regular Price £317.40 £380.88 -
Lenovo 40AY0135UK laptop dock/port replicator Wired USB 3.2 Gen 1 (3.1 Gen 1) Type-C BlackSpecial Price £172.85 £207.42 Regular Price £300.60 £360.72 -
Lenovo ThinkPad Hybrid USB-C with USB-A Dock Wired USB 3.2 Gen 2 (3.1 Gen 2) Type-C BlackSpecial Price £191.67 £230.00 Regular Price £333.34 £400.01 -
StarTech.com USB-C & USB-A Dock - Hybrid Universal Triple Monitor Laptop Docking Station DisplayPort & HDMI 4K 60Hz - 85W Power Delivery, 6x USB Hub, GbE, Audio - USB 3.1 Gen 2 10Gbps - TAASpecial Price £165.50 £198.60 Regular Price £287.82 £345.38 -
HP Thunderbolt 4 Ultra 280W G6 DockSpecial Price £218.39 £262.07 Regular Price £379.80 £455.76 -
HP Thunderbolt 4 100W G6 DockSpecial Price £141.48 £169.78 Regular Price £246.06 £295.27 -
HP Thunderbolt 4 Ultra 180W G6 DockSpecial Price £187.90 £225.48 Regular Price £326.78 £392.14 -
Lenovo ThinkPad Universal USB-C Smart Dock Wired USB 3.2 Gen 2 (3.1 Gen 2) Type-C BlackSpecial Price £228.85 £274.62 Regular Price £398.00 £477.60 -
DELL Pro SD25 Wired USB 3.2 Gen 2 (3.1 Gen 2) Type-C BlackSpecial Price £164.73 £197.68 Regular Price £286.48 £343.78 -
Lenovo ThinkPad Universal Thunderbolt 4 Wired BlackSpecial Price £195.22 £234.26 Regular Price £339.52 £407.42 -
Targus DOCK310EUZ laptop dock/port replicator Wired USB 3.2 Gen 1 (3.1 Gen 1) Type-C BlackSpecial Price £86.54 £103.85 Regular Price £150.50 £180.60 -
DELL WD19S-180W (without AC adaptor) Wired USB 3.2 Gen 2 (3.1 Gen 2) Type-C BlackSpecial Price £239.48 £287.38 Regular Price £416.48 £499.78 -
DELL SD25TB5 Wired Thunderbolt 5 BlackSpecial Price £316.25 £379.50 Regular Price £550.00 £660.00 -
Microsoft Surface Thunderbolt 4 Dock Wired BlackSpecial Price £211.75 £254.10 Regular Price £368.26 £441.91 -
Targus DOCK182EUZ laptop dock/port replicator Wired BlackSpecial Price £184.39 £221.27 Regular Price £320.68 £384.82 -
Microsoft Surface Thunderbolt 4 Dock Wired BlackSpecial Price £166.39 £199.67 Regular Price £289.38 £347.26 -
Hot ProductStarTech.com Universal Laptop Docking Station, Hybrid USB-C & USB-A Dock, Dual 4K DP & HDMI, 100W PD, Mac / Windows / Chrome OS, 4x USB 5Gbps Hub, GbESpecial Price £142.20 £170.64 Regular Price £247.30 £296.76 -
Lenovo 40B00300EU laptop dock/port replicator Wired Thunderbolt 4 Black, RedSpecial Price £235.82 £282.98 Regular Price £410.12 £492.14 -
Lenovo 40AF0135EU laptop dock/port replicator Wired BlackSpecial Price £168.58 £202.30 Regular Price £293.18 £351.82 -
RecommendedDELL Thunderbolt™ Dock – WD22TB4Special Price £231.17 £277.40 Regular Price £402.04 £482.45 -
PopularHP Thunderbolt Dock 280W G4 w/Combo CableSpecial Price £184.21 £221.05 Regular Price £320.36 £384.43 -
Kensington SD4781P EQ USB-C & USB-A Dual 4K Docking StationSpecial Price £215.12 £258.14 Regular Price £374.12 £448.94 -
BestsellerLenovo 40AF0135UK laptop dock/port replicator Wired USB 3.2 Gen 1 (3.1 Gen 1) Type-C BlackSpecial Price £166.42 £199.70 Regular Price £289.42 £347.30 -
HP Thunderbolt 280W G4 Dock w/Combo CableSpecial Price £184.21 £221.05 Regular Price £320.36 £384.43
You may also be interested in
| Product |
Recommended
DELL Pro Thunderbolt 4 SD25TB4 Wired B...
Special Price
£209.70
£251.64
Regular Price
£364.70
£437.64
|
StarTech.com Thunderbolt 3 PCIe Expans...
Special Price
£234.58
£281.50
Regular Price
£407.96
£489.55
|
Lenovo ThinkPad Hybrid USB-C with USB-...
Special Price
£191.67
£230.00
Regular Price
£333.34
£400.01
|
Popular
Lenovo 40AF0135EU laptop dock/port rep...
Special Price
£168.58
£202.30
Regular Price
£293.18
£351.82
|
Bestseller
Lenovo 40AF0135UK laptop dock/port rep...
Special Price
£166.42
£199.70
Regular Price
£289.42
£347.30
|
Hot Product
StarTech.com Universal Laptop Docking...
Special Price
£142.20
£170.64
Regular Price
£247.30
£296.76
|
|---|---|---|---|---|---|---|
| SKU |
DELL-SD25TB4
|
TB31PCIEX16
|
40AF0135DK
|
40AF0135EU
|
40AF0135UK
|
DK30C2DPEPUE
|
| Manufacturer |
DELL
|
StarTech.com
|
Lenovo
|
Lenovo
|
Lenovo
|
StarTech.com
|
| Product colour |
Black
|
Black
|
Black
|
Black
|
Black
|
N/A
|























