GW Instek GPP-4323
#4 in Multi-outputFull review
A four-channel programmable supply for labs that need many precise rails and automated tests in one unit.
Amazon $897.86$897.86
The GW Instek GPP-4323 rates 3.5 among multi-output bench power supplys; the B&K Precision 1696B rates 2.8 among single output ones. The B&K Precision 1696B costs $351.74 less ($546.12 vs $897.86).
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.
B&K Precision 1696B
#16 in Single outputFull review
A programmable 20 V supply for production and test rigs that chain several units on RS485.
Amazon $546.12$546.12
Scores side by side
These two sit in different type classes (multi-output and single output), and each is scored against the reference points for its own class, so a rating says how well each does among its own type peers. How we rank explains each factor.
| Factor weight | GW Instek GPP-4323 | B&K Precision 1696B |
|---|---|---|
| Overall rating | 3.5/5 | 2.8/5 |
| Value 25% | 5 $4.24 per watt ($897.86, 212 W from the channel ratings) | 17 $2.73 per watt ($546.12, 200 W rated) |
| Output quality 20% | 96 0.3 mVrms ripple and noise | 29 6 mVrms ripple and noise |
| Resolution 15% | 100 1 mV / 0.1 mA setting resolution | 0 100 mV / 10 mA setting resolution |
| PC control 15% | 100 USB, RS232, LAN with SCPI | 80 USB, RS485 with SCPI |
| Protection & features 10% | 80 over-voltage protection, over-current protection, stored setups | 80 over-voltage protection, over-current protection, stored setups |
| Warranty 15% | 0 warranty not published, scored as none | 50 2-year warranty |
Specifications
| GW Instek GPP-4323 | B&K Precision 1696B | |
|---|---|---|
| Output | ||
| Type | Power supply | Power supply |
| Channels | 4 | 1 |
| Channel ratings | 32 V/3 A, 32 V/3 A, 5 V/1 A, 15 V/1 A | 1-20 V/10 A |
| Max voltage | 32 V | 20 V |
| Max current | 3 A | 10 A |
| Rated power | 212 W (channels added) | 200 W |
| Ripple and noise | 0.3 mVrms | 6 mVrms / 30 mVp-p |
| Precision | ||
| Setting resolution | 1 mV / 0.1 mA | 100 mV / 10 mA |
| Readback resolution | 0.1 mV / 0.1 mA | 10 mV / 1 mA |
| Control | ||
| PC interfaces | USB, RS232, LAN | USB, RS485 |
| SCPI | Yes | Yes |
| Stored setups | 10 | 10 |
| Over-voltage protection | Yes | Yes |
| Over-current protection | Yes | Yes |
| Build | ||
| Weight | 16.5 lb | 6.6 lb |
| Warranty | - | 2 years |