Futaba S3004 has the same torque and ball bearings, but is slightly slower. Also someone pointed out that Hitec is the only one to use the Karbonite, and there's probably a reason that the 'name brands' don't use it.

SPECS: Speed: .23 sec/60° @ 4.8V .19 sec/60° @ 6.0V Torque: 44 oz-in (3.2 kg-cm) at 4.8V 57 oz-in (4.1 kg-cm) at 6.0V Length: 1.6" (41mm) Width: .8" (20mm) Height: 1.4" (36mm) Weight: 1.3 ounce (37.2 grams) Connector: "J" type with approx. 5" wire