A quiet, precise single-output linear supply for electronics benches that want PC control and remote sense. Less power per dollar than a switcher, but far cleaner output.
Amazon $328The Siglent SPD1305X and the Siglent SPD1168X are evenly matched, rated 4.0 and 3.9. The Siglent SPD1168X costs $23 less ($305 vs $328).
Prices were last checked November 9, 2026. Product prices and availability are accurate as of that date and are subject to change; the price and availability shown on Amazon or the retailer's site at the time of purchase apply. As an Amazon Associate we earn from qualifying purchases.
The low-voltage, higher-current sibling of the SPD1305X, for 12 V and 5 V work that needs clean, precise power.
Amazon $305Scores side by side
Each factor is scored 0-100 against the same fixed reference points for every single output bench power supply; a clear win is highlighted. How we rank explains each one.
| Factor weight | Siglent SPD1305X | Siglent SPD1168X |
|---|---|---|
| Overall rating | 4.0/5 | 3.9/5 |
| Value 25% | 24 $2.19 per watt ($328, 150 W rated) | 21 $2.38 per watt ($305, 128 W rated) |
| Output quality 20% | 96 0.3 mVrms ripple and noise | 96 0.3 mVrms ripple and noise |
| Resolution 15% | 75 1 mV / 1 mA setting resolution | 75 1 mV / 1 mA setting resolution |
| PC control 15% | 100 USB, LAN with SCPI | 100 USB, LAN with SCPI |
| Protection & features 10% | 40 remote sense, stored setups | 40 remote sense, stored setups |
| Warranty 15% | 100 3-year warranty | 100 3-year warranty |
Specifications
| Siglent SPD1305X | Siglent SPD1168X | |
|---|---|---|
| Output | ||
| Type | Power supply | Power supply |
| Regulation | Linear | Linear |
| Channels | 1 | 1 |
| Channel ratings | 30 V/5 A | 16 V/8 A |
| Max voltage | 30 V | 16 V |
| Max current | 5 A | 8 A |
| Rated power | 150 W | 128 W |
| Ripple and noise | 0.3 mVrms / 3 mVp-p | 0.3 mVrms / 3 mVp-p |
| Precision | ||
| Setting resolution | 1 mV / 1 mA | 1 mV / 1 mA |
| Readback resolution | 1 mV / 1 mA | 1 mV / 1 mA |
| Remote sense | Yes | Yes |
| Control | ||
| PC interfaces | USB, LAN | USB, LAN |
| SCPI | Yes | Yes |
| Stored setups | 5 | 5 |
| Build | ||
| Weight | 12.1 lb | 12.1 lb |
| Warranty | 3 years | 3 years |
