Thank you for viewing. This is a TP22 digital amplifier made by TOPPING (with the original AC adapter). It is part of a large number of PC parts that my computer-enthusiast younger brother asked me to dispose of. It seems he bought it as a spare part, and there are several of them. The main unit is in good condition, and the original box is also clean. Among the four small amplifiers I have listed, this model has the highest output at 30W x 2. According to my brother, he checked the operation and confirmed that it worked correctly, but it has been stored for a long time, and I cannot guarantee that it will continue to work properly in the future. The included accessories are the power adapter and the instruction manual. Please check the photos. How about it for those who are familiar with computers or those who feel that their speaker volume is insufficient? Please understand that this is a used item that has been stored for a long time, and please refrain from purchasing if you are looking for a perfect product or if you are very particular about the condition. Shipping will be done by wrapping the original box in kraft paper or similar material. 【SPEC】 ●Speaker output: 30W x 2 (@4Ω) / 25W x 2 (@8Ω) ●Impedance: 4～8Ω ●Efficiency: 88% (@12W/8Ω) ●THD: 0.035% (@22W/4Ω) ●Dynamic range: 100dB (max) ●Connection terminals: Input...RCA x 2 (gold-plated), Output...Speaker out x 2 (banana plug compatible, gold-plated) ●External dimensions: 113W x 45H x 198Dmm ●Weight: 754g (excluding AC) 【AI Description】 The TP22 is a high-quality preamplifier with an analog volume and multiple input terminals. - Brand: Topping - Model: TP22 - Input terminals: IN-1, IN-2 - Volume adjustment: Analog volume - Switch: ON/OFF - Design: Aluminum - Color: Silver/Black #Amplifier #Selector #Headphone amplifier #PC #Computer #HDD #Windows #Used #DIY #PC parts #Junk Item number A3