Basically, the L type has an extra notch whereas the I type doesn't. See the first image below SATA External Cable Shielded eSATA to SATA (Type “I”) to (Type “L”) for more details.
4 x 4GB DDR3-1600 Corsair Vengeance CMZ8GX3M2A1600C9B (16GB)
Graphics Card(s)
MSI GeForce GTX770 Gaming OC 2GB
Sound Card
Realtek High Definition on board solution (ALC 898)
Monitor(s) Displays
ViewSonic VA1912w Widescreen (VGA)
Screen Resolution
1440x900
Hard Drives
OCZ Agility 3 SSD 120GB SATA III x2 (RAID 0)
Samsung HD501LJ 500GB SATA II x2
Hitachi HDS721010CLA332 1TB SATA II
Iomega 1.5TB Ext USB 2.0
WD 2.0TB Ext USB 3.0
I see the notch. I believe the "L" type is internal. While the "I" type is external. Now if I can just find "I" to "I" 3 ft or more with latches on the plugs. (Sata III)
My Computer
Computer Manufacturer/Model Number
BGC (Bob's Garage Crew)
OS
win 7 X64 Ultimate SP1
CPU
I3770K
Motherboard
Asus P8Z77-V Deluxe
Memory
G Skill F3-14900CL9-4GBXL x 4
Graphics Card(s)
NVIDIA GeForce GTX670 + Intel 4000
Sound Card
Realtek HD 5.1 (MOB)
Monitor(s) Displays
Asus VW224T (1)
Screen Resolution
1920 x 1080
Hard Drives
SATA Corsair Force GT 2.5" 180GB (System) Sata 3
OCZ Vertex3 120GB
OCZ Vertex 2 120GB 2.5" SATA II
ST31000524AS 1000.2GB
WD15EARS (External)
