Ports Spec: 1 x Monitor/Video Port (15 pin D-Sub)
1 x 10/100 Base-T Ethernet (RJ-45) Jack
1 x Serial Port
1 x Stereo Audio-Out Jack (3.5 mm for speakers or headphone)
1 x Mono Audio-In Jack (3.5mm for microphone)
4 x Hi-Speed USB 2.0 Ports (two Power Ports and two standard USB ports both are backward compatible with USB 1.1 devices and support transfers up to 480Mbps)
Thunderbolt 3: Thunderbolt 4, 1* Thunderbolt Port - for Host connect 1* Thunderbolt Port - for Device connect
Ports Spec: 1 x 3.5mm Audio combo Jack
4 x USB-A
1 x USB-C
1 x HDMI 2.1
2 x Displayport 1.4
1 x RJ45
1 x Thunderbolt (for Host connect)
1 x Thunderbolt (for Device connect)
Compatibility: Compatible with select Lenovo 3000 notebooks, ThinkPad T, R, X, SL, Z and Edge series laptops
Compatible with the ThinkPad Advanced Mini Dock, ThinkPad Essential Port Replicator, and ThinkPad External Battery Charger
Ports Spec: 1 x SD Card Slot (UHS-II, SD4.0)
1 x USB 3.1 Gen 2 (front) with 5V/2.4A fast-charging
4 x USB 3.1 Gen 1 (back) supporting 5V/0.9A
1 x USB 3.1 Gen 2 (front) with 5V/3A charging
1 x 3.5mm Combo Microphone & Headphone Port (front)
1 x Gigabit Ethernet port
1 x HDMI v2.0
2 x DisplayPort++ v1.4
1 x USB-C DP ALT Mode
Compatibility: Compatible with the following 65w and 90w DualCore ThinkPad Models with Integrated Graphics: ThinkPad 20AQ, L440, L450, L460, L540, L560, P50s, T440, T440p, T440s, T450, T450s, T460, T460p, T460s, T540p, T550, W550s, X240, X250, X260.
NOT recommended if the system AC adapter is 170W.