Intel ThinkPads with two TB3 capable USB C ports are full implementation and so are the P50/P51 (these two are an exception to #1). TB4 docks will pass video to their first downstream port even if the host is not TB capable. Be very careful with simple adapters with removable cables -- buy such only from reputable vendors. Finally, practically all USB C docks (or dock like devices) pass through power. The P52 and later P laptops have full implementations and support DisplayPort 1.4. Thunderbolt 3 in theory could carry two full DisplayPort signals and 32gbps data flexibly with a 40gbps total limit. This is a USB C dock with a DP 1.4 MST hub inside and of course some data ports. All known docks with a DP 1.4 MST hub use the Synaptics VMM533x family which allows DSC on the laptop-hub connection and allows connecting monitors without DSC support. All Rights Reserved. Feel free to add useful information to the subreddit wiki. The item you've selected was not added to your cart. By default two lanes are used for USB data, one for transmitting at 10gbit/s the other receiving at this speed. The "ThinkPad USB-C Dock" 40A9 is a mixed mode USB C dock daisy-chained to an MST hub so it can drive two 1080p @ 60 Hz and 5 gbps USB ports. DisplayLink is not DisplayPort, avoid like the plague. TB4 is always full implementation with two ports and two DP 1.4. Copyright 1995-2022 eBay Inc. All Rights Reserved. Seller assumes all responsibility for this listing. The "ThinkPad Ultra Docking Station" 40AJ marries "40A9" with "40AH": it takes two USB C connectors and uses one in DisplayPort alt mode and one in mixed mode -- so dual 4K @ 60 Hz is not possible. {"modules":["unloadOptimization","bandwidthDetection"],"unloadOptimization":{"browsers":{"Firefox":true,"Chrome":true}},"bandwidthDetection":{"url":"https://ir.ebaystatic.com/cr/v/c1/thirtysevens.jpg","maxViews":4,"imgSize":37,"expiry":300000,"timeout":250}}. If two digital outputs are requested, the full DP signal is ran through MST hub and the half signal is still going into the VGA. Refresh your browser window to try again. It's not known what "smart" means here compared to the 40B0. Press question mark to learn the rest of the keyboard shortcuts, complete list of all Lenovo docking stations, https://dancharblog.wordpress.com/2021/02/05/usb4-tb4-docks/, https://github.com/haimgel/display-switch/, Lenovo Parts Removal and Replacement Videos, This low power version was used on all Intel ThinkPads with a single TB3 capable USB C port: the T470-T14 Gen1 and similar generation X2/X3 laptops. A massive TB4 hub list can be found at https://dancharblog.wordpress.com/2021/02/05/usb4-tb4-docks/. Since the X1 Extreme / P1 / P52 / P72 need more than 100W to charge when fully loaded, there is no question which dock to buy for those if single plug docking is a requirement. These numbers require using all four high speed lanes for video only and USB 2.0 data speeds. The "ThinkPad Thunderbolt 3 Workstation Dock" and the "ThinkPad Thunderbolt 3 Dock Gen 2" are the exact same 40AN dock. DisplayPort 1.3 raises the available bandwidth from 17.28gbit/s to 25.92gbit/s and DisplayPort 1.4 adds Display Stream Compression (DSC), a "visually lossless" compression which aims to triple the bandwidth. Video resolutions are the same. Press J to jump to the feed. DisplayPort has a feature called MST where the MST hub takes a DisplayPort signal and drives multiple monitors from it. In practice this means USB 3.0 and dual 4K @ 60Hz is possible with a relatively cheap USB C dock if the host is capable of doing DP 1.4 and DSC at the same time. Separate wires exist for power delivery and also one for negotiating various data and power modes and finally one pair for USB 2.0 data. Something went wrong. Beyond just delivering power and USB signals, it can go into various alternate modes, DisplayPort and Thunderbolt being the most important ones. Absolute, LoJack for laptops) is Not Activated, When buying a new ThinkPad, consider taking the IPS screen option if possible, as it doesn't cost much. Then Intel handed it over to the USB IF which turned it into USB4. DisplayPort 1.2 had enough bandwidth to drive a 4k @60Hz or a 1440p @ 144Hz or an ultrawide 1440p @120Hz 17.28gbit/s total. The charging capabilities are slightly improved - dock can provide 65W with the standard 90W slim-tip PSU, or 100W with 135W (or higher) slim-tip PSU. Lenovo offers many docks with ever so similar names, which is a confusing maze to navigate. When trying to use two laptops with a single keyboard/mouse look at https://github.com/haimgel/display-switch/ first. Especially bad purchase for the X2/T laptops because their half Thunderbolt matched with this dock has zero advantage whatsoever over the dual USB C Pro/Ultra docking stations. Lenovo Parts Removal and Replacement Videos (select ThinkPad tab), Lenovo Windows Digital Download Recovery Images, Mirror of Hardware Maintenance Manuals for discontinued models, Lenovo Photo Library (including lots of wallpapers). Below is some deep-dive information, as well as some info on specifics. The "ThinkPad Thunderbolt 3 Dock" 40AC is a TB3 dock + an MST hub. The "ThinkPad Pro Docking Station" 40AH uses quite the trick to solve the USB C bandwidth problems: it uses two USB C connectors. In practice, the data speed never exceeds 22gbps. The "Dock Gen 2" ships with a 135W adapter without the special cable and charges the connected laptop over Thunderbolt. By the time Intel IGP learned DP 1.4 it also learned TB4. The Ethernet port can either be 2.5gbps using an Intel i225 or when connected to non-Thunderbolt systems, an 1GbE Realtek 8153 is also present. Click the button below to update and we look forward to seeing you soon. These can not support two 4K @60Hz monitors or similar video bandwidth needs from a single cable, Thunderbolt or not. Warning: multiple reports are out there complaining about the DisplayPort on the dock not working. 2018 Herald International Research Journals. It is also possible to use only two high speed lanes and then 10gbps USB data speeds are possible over the last two lanes. It supports two monitors using DisplayPort 1.4, there's no MST hub. 1 x Lenovo ThinkPad USB-C Dock (40A9/dk1633), 1 x Clover Leaf Cable (UK Three Pin Power Lead). At the time of this writing, Intel chips seems to have a problem with this, see this post. Even current laptop models that ship with slim tip power adapters (P52/72/1 and X1 Extreme) and generally consume more than 100w peak and thus cannot be fully powered via USB PD are capable of running and charging the battery at a reduced rate with USB C power adapters but these might require 100W -- the X1E4 does, for example. When reinstalling Windows, try the Lenovo disc images, as longer battery times have been reported, probably due to custom drivers. The "Lenovo Thunderbolt 3 Essential Dock" features wise is a slimmed down 40AN with less ports only 65W host charging. The TB4 bus now carries USB signals as well, greatly increasing the reliability of USB devices connected to the Thunderbolt bus. Lenovo provides a complete list of all Lenovo docking stations. This setup is not confirmed but this explanation is the only one I can figure out fitting the resolution table published by Lenovo. Lenovo docks using this technology include "40AA", "40A7", "40A8" and the Hybrid dock "40AF". Not only does it fit the resolutions supported but tells you why other ones are not in the table as well. TB4 and USB4 are equal for all intents and purposes (TB4 is an Intel marketing term for full featured USB4 and Microsoft made it mandatory for USB4 to be full featured). This. (Comparison video). The "ThinkPad USB-C Dock Gen 2" 40AS is a similar mixed mode USB C + MST dock but the MST hub is DisplayPort 1.4 and DSC capable. There's an MST hub in there as well, previously only the Ultra docks did, so two 4K @ 30 Hz monitors are a go. This and every later dock support USB C only hosts even if TB3 is not available. We have IT refurbishment experts on hand to answer any questions or offer advice. Never use acetone (nail polish remover). The only tools you need for servicing a ThinkPad are a set of small screwdrivers and a nylon spudger (for taking the screen and keyboard bezels off), and possibly a pair of tweezers. Dock 4337 for Lenovo Thinkpad (see description), Dell Precision Dual USB Type-C Thunderbolt 3 Dock - TB18DC / Port Replicator - K16A - 02RRTM - with charger, Lenovo ThinkPad Pro Dock Type 40A1 / 00HM918, Docking Station/Port Replicator Dell WD19 K20A / 0PXP3H - USB 3.0 - HDMI - USB-C, Lenovo ThinkPad Basic USB 3.0 Dock Station DL3700-ESS, PR01X / 0HD062 docking station for DELL XPS, Latitude (see description), Dell E-Port Plus PR02X USB 2.0 Docking Station / 0CY640 Latitude Precision Laptop, HP Advanced Docking Station HSTNN-I10X - 581598-001 / 575321-002, Dock D5000 for DELL Precision (see description), Dell E-Port Docking Station Spacer / spacer DELL 0XJD0R for docking station, DELL E-Port Plus K09A - 0PKDGR - USB 3.0, Dell Precision Dual USB Type-C Thunderbolt 3 Dock - TB18DC / Port Replicator - K16A - 02RRTM. Create an account to follow your favorite communities and start taking part in conversations. It can't conjure more bandwidth than available so if you feed a DP 1.2 full signal into it then you can drive four 1080p monitors, two 3440 x 1440 @ 60 Hz, or even a 4K @ 60 Hz + one 1080p. When buying used ThinkPads, ensure that the BIOS is Not Locked with a Supervisor Password and CompuTrace (a.k.a. View cart for details. Lenovo also provides a great output matrix page for Display and Video Output Configurations which directly lists the supported monitor configuration. 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SuperSpeed USB 3.0, USB 2.0, USB-C, audio, audio / video, network, video, ThinkPad X1 Yoga 2nd Gen (20JD,20JE,20JF,20JG), ThinkPad X1 Yoga 3rd Gen (20LD,20LE,20LF,20LG). In 2022, some AMD laptops started to sport USB4 ports, as mentioned this is the same as TB4 and these are confirmed to be compatible with TB3 eGPUs. - Top Rated Plus - opens in a new window or tab, - eBay Money Back Guarantee - opens in a new window or tab, - for PayPal Credit, opens in a new window or tab, Learn more about earning points with eBay Mastercard, - eBay Return policy - opens in a new tab or window, - eBay Money Back Guarantee - opens in a new tab or window. It may feature very light scuff marks and scratches. Before going into the USB C jungle, quick refresh on what USB C is and what can happen in there. Most of the time, a much cheaper USB C dock or a competitors TB 3 dock is a better bang for the buck. 90W Ac Adapter w/ Power Cord for Lenovo ThinkPad USB-C Dock Type 40A9. One in DisplayPort alt mode allowing for 60 Hz, the other in plain USB mode. However, almost all non-powered dock/adapter will not re-negotiate power delivery rather it'll just decrease the nominal voltage slightly which stays within the PD standard allowed zone -- but to do this, it needs to take the losses of the USB C cable into account and that's why these have a very short captive cable. Not only will it have better brightness, colour, contrast and viewing angles - you will most probably more than make up the investment when selling it. This is a TB4 dock with an MST hub providing quad display capability. It's a bit too expensive for what it is. The "ThinkPad Universal USB-C Dock" is very similar to the 40AS USB C + MST dock and supports DisplayPort 1.4 and DSC. The Workstation Dock ships with a 170W or a 230W adapter and a special cable: two plugs (one power, one USB Type C) in a plastic shell so you need to plug one cable. In fact, if the Ultra explanation above is correct then the Ultra provides more video bandwidth than this one. Here's the capability list: The USB standards allow USB C to deliver up to 100W to power an attached device, but typically such a high wattage charger isn't needed: most ThinkPads capable of charging from USB C at this time (and very likely the future given trends) are fine with just 45W and will slow charge with less.