Shimano Di2 Shifter SW-RS801 12-speed

The SW-RS801 Di2 Shifter by Shimano – For sprinting or mountain riding
The SW-RS801 are additional shifters, also called satellite shifters, for the Dura-Ace R9250 and the Ultegra R8150 Di2 road bike groupsets from Shimano. They come in two versions. SW-RS801-S is aimed at all those who want to shift in lower link position, e.g. during a sprint. The 1-button switch unit and clamp are mounted in the drops using adhesive tape, additionally fixed by the handlebar tape. SW-RS801-T is ideal for those who would like to shift gears in the top link position, for example on a strenuous uphill ride. The 1-button switch unit and clamp are mounted to the right and left of the stem using cable ties. Both models are supplied in pairs; SW-RS801-S comes with two 100 mm long EW-SD300 power cables, SW-RS801-T with two 260 mm long power cables. This connects the shifters to the regular STIs. The buttons are designed for shifting the 12-speed cassette up and down, i.e. for operating the rear derailleur. However, via the E-Tube platform, it is possible to reprogram them so that they can shift in front.
Information regarding the return of batteries and electrical equipment:Information on the return and disposal of batteries and electrical equipment can be found here.
Specifications:Application:RoadGearing:12-speed, 2-speedTechnical Information:Type:SwitchMaterial:CompositeCompatibility:Power Cable:EW-SD300-I (1 x connection per side)Shift/Brake Lever:ST-R9250, ST-R9270, ST-R8150, ST-R8170Features:sprinter or top link shifter1-button modeladditional, better control thanks to individual shift positionlightning-fast gear changesprogrammable gearingModels:100 mm:
Model:SW-RS801-SType:Lower link/sprint shifterCable Length:100 mmClamp Diameter:24 mmMounting Position:handlebar bendMount Type:double-sided adhesive tape, handlebar tapeManufacturer Number:I-SWRS801S
260 mm:
Model:SW-RS801-TType:Top link/climb switchCable Length:260 mmClamp Diameter:31.8 mmMounting Position:Top linkMount Type:zip tiesManufacturer Number:I-SWRS801TContents:1 x pair Shimano Di2 SW-RS801 Shifters
100 mm:
2 x Shimano EW-SD300 power cables, 100 mm2 x double-sided adhesive tape rolls
260 mm:
2 x Shimano EW-SD300 power cables, 260 mm2 x rubber pad2 x zip ties