Lenovo Port Replicator Mini Docking Station
Type 2504
#1 ASM P/N 42W4639 // FRU P/N 42W4638 (Lenovo)
#2 P/N 42W8298 // 42W8299 (IBM)

List Price $269
My Price: $99

The Lenovo ThinkPad 42W4638 Port Replicator Series 3 offers convenient, one step connection to the devices you use every day. With the Lenovo ThinkPad 42W4638 Port Replicator Series 3, you can access your LAN or Internet connection, VGA monitor, and USB attach peripherals with one simple click. This Lenovo ThinkPad 42W4638 Port Replicator Series 3 features left corner alignment for easy system attachment and a convenient eject button for one-step system removal. It is Compatible with many ThinkPad models, including hinkpad T60, T61, T60p, T61p, T400, T500, R60, R61, R400, R500, Z60, Z61, Z60m, Z60t, Z61m, Z61t, W500, SL500, T400s, T410, T410s, T500, T510, W510, L412, L512, and several others.

-- Left corner alignment for easy system attachment.
-- Convenient eject button for one-step system removal.
-- 4 USB 2.0 portsVGA monitor port
-- RJ-45 Ethernet portCable lock slot to secure both your port replicator and your notebook.
-- Uses the standard AC adapter (same as laptop)
-- Interfaces: 1 x RJ-45; 1 x display - VGA - 15 pin HD D-Sub (HD-15); 4 x Hi-Speed USB

http://support.lenovo.com/en_US/detail.page?LegacyDocID=MIGR-72865