Pošto se nabrajaju periferije računara i dodatna oprema, pogledajte ove slike, mislim da je to u pitanju:

Loop End Computer Security Cables
The Loop End security cable has a P34 plate on a 3-foot standard cable with loop on the other end, plus an L4 combination lock. To secure more equipment on the same cable, you must use any of the plates below having loops attached to the plates or to the cable ends.
http://www.tufnut.com/category.aspx?id=5

A možda i petlje/omče nisu na krajevima kabla (“loop end”) kao na slici u prvom linku, pa se to i ne mora prevoditi, već to “loop” može da znači da sam sigurnosni kabl/uže formira petlju/omču kada je zabravljen, kao što je npr. ovde:

6' Loop Cable - w/#21 Master Lock (Black)
Product Description:
The CBL-806B cable is 3/16" diameter aircraft quality steel, vinyl coated to 5/16" diameter. The Master Lock padlock is permanently attached to one end of the cable. The opposite end has a bullet which is thread thru the security fasteners and then inserted back into the lock; making a 6' loop.
http://www.secure-it.com/shop/product_info.php/cPath/28/prod...

Targus celicni sigurnosni kabl za notebook PA410E cene
http://www.eponuda.com/dodatna-oprema-za-laptop/targus-celic...

Karakteristike
Tip: Sigurnosni kabl sa ključem
Upotreba: Zaštitni kabl za notebook
http://www.eponuda.com/dodatna-oprema-za-laptop/belkin-noteb...

Tehnički rečnik:
loop - omča, petlja