A $30 gaming controller used to pilot the missing Titanic tourist sub has received hundreds of complaints since launching in 2010.
OceanGate Expeditions, the company behind the much-watched vanished vessel, is navigated by a modified Logitech G F710 Wireless Gamepad.
The controller runs on AA batteries and has an overall score of just 4.2 out of five.
Hundreds of users left one-star reviews dating back more than a decade.
An image of a Titan submarine used for such expeditionsOcean GateSome users even claim the device suffers from irritating and regular connection problems.
Criticisms also include problems with the controller’s analogue sticks and issues with the keypad.
The Logitech G F710 Wireless Gamepad is only compatible with decade-old Windows and Chrome systems.
Logitech suffered a financial blow on Wednesday morning as news of the missing submarine’s connection with the controller spread.
Logitech G F710 Wireless Gamepad
CBS
Stock prices dropped by three per cent and faced a four per cent dip over the past four days.
The controller resembles one used for a gaming console.
It also features a 2.4 GHz wireless connection, which users said on Amazon will drop periodically.
The controller is used either with two AA batteries or a power source.
The Titanic tourist sub vanished in the Atlantic Ocean on Sunday, sparking an urgent searchReutersIt is not yet known how the controller is powered in the Titanic tourist submarine.
OceanGate CEO Stockton Rush said earlier this year: “We run the whole thing with this game controller.”
British billionaire Hamish Harding, 58, is among those missing as rescue crews continue to search the Atlantic Ocean.
Shehzada Dawood and his son Suleman from Pakistan were also onboard the five-person expedition.