Check to compare Western Digital My Book Studio II 4TB [WDH2Q40000E] USB 2.0 interface: Yes, FireWire 400 interface: Yes, eSATA interface: Yes, Quoted capacity: 4000 GB Specs Reviews User reviews Check to compare LaCie 4big Quadra 4TB [301359] USB 2.0 interface: Yes, FireWire 400 interface: Yes, FireWire 800 interface: Yes, eSATA interface: Yes, Quoted capacity: 4000 GB Specs Reviews User reviews Check to compare LaCie Big Disk Network 1.1 4TB [301423] USB 2.0 interface: Yes, Quoted capacity: 4000 GB Specs Reviews User reviews Check to compare Buffalo DriveStation Quattro 4TB [HD-QS4.0TSU2/R5] USB 2.0 interface: Yes, eSATA interface: Yes, Quoted capacity: 4000 GB Specs Reviews User reviews Check to compare LaCie Biggest Quadra 4TB [301250] USB 2.0 interface: Yes, FireWire 400 interface: Yes, FireWire 800 interface: Yes, eSATA interface: Yes, Quoted capacity: 4000 GB Specs Reviews User reviews Check to compare Cavalry CADA 4TB eSATA [CADA004SA4] eSATA interface: Yes, Quoted capacity: 4000 GB Specs Reviews User reviews Check to compare Iomega UltraMax Plus 4TB [34537] USB 2.0 interface: Yes, FireWire 400 interface: Yes, FireWire 800 interface: Yes, eSATA interface: Yes, Quoted capacity: 4000 GB Specs Reviews User reviews Check to compare LaCie 3big Quadra 4TB [301432] USB 2.0 interface: Yes, FireWire 400 interface: Yes, FireWire 800 interface: Yes, eSATA interface: Yes, Quoted capacity: 4000 GB Specs Reviews User reviews Check to compare LaCie Big Disk Quadra 4TB [301499] USB 2.0 interface: Yes, FireWire 400 interface: Yes, eSATA interface: Yes, Quoted capacity: 4000 GB Specs Reviews User reviews