Choosing a variable frequency drive for motor controls often comes down to a trade-off between a familiar manufacturer model and a lower upfront price. The Vortek SP1406 Unidrive SP and the 1 To 3 Phase 7.5KW 10HP 220V CNC Variable Frequency Drive Inverter VFD VSD sit at opposite ends of that trade-off. One is a Control Techniques unit at $359.97; the other is a findmall drive at $119.34. The right pick depends on whether you value a specific model name or a fresh, less expensive unit with useful phase-conversion capability.
Quick verdict
For a buyer who wants the lower-priced option, the findmall drive is the more straightforward choice. For a buyer who needs a specific Control Techniques Unidrive SP model, the Vortek is the model to target. The decision comes down to condition and model specificity.
At a glance
| Feature | Vortek SP1406 Unidrive SP | 1 To 3 Phase 7.5KW 10HP 220V CNC VFD |
|---|---|---|
| Price | USD 359.97 | USD 119.34 |
| Condition | Used | New |
| Brand | Control Techniques | findmall |
| Model / MPN | Unidrive SP / SP1406 | 662506 |
Where each product wins
Vortek SP1406 Unidrive SP

The Vortek wins if you need a Control Techniques Unidrive SP and the exact MPN SP1406 is what your system calls for. It is a specific model-name drive rather than a generic unit. Its price reflects the model specificity.
1 To 3 Phase 7.5KW 10HP 220V CNC VFD

The findmall wins if you want a drive that accepts 1-phase input and outputs 3-phase, which is useful for running a three-phase motor from a single-phase line. It covers many motor control tasks with that conversion capability.
Product notes
Vortek SP1406 Unidrive SP
The Vortek SP1406 is a Control Techniques Unidrive SP variable frequency drive. The brand is Control Techniques, the model is Unidrive SP, and the MPN is SP1406. This unit is used and sold as-is, so it should be inspected and verified before installation. It was removed from a working environment, but only the items included in the sale are part of the transaction. Choose it if you need a Unidrive SP replacement or are building a system around that model. The main limitation is the used as-is condition: you take on the risk that it may not operate correctly, and any missing parts are not included. It costs notably more than the findmall drive, so the condition risk is the biggest trade-off.
1 To 3 Phase 7.5KW 10HP 220V CNC VFD
This findmall drive converts 1-phase 220V input to 3-phase 220V output, making it useful for running a three-phase motor from a single-phase supply. It uses SPWM control, accepts 48-63 Hz input, and is rated for a maximum of 20A per phase. Choose it if you want a new drive with single-phase input capability at a lower price. The limitation is the 220V input and output specification, so confirm it matches your motor before wiring. It includes multiplex terminal functions, which add flexibility in control wiring. The actual behavior with your specific load will matter.
Final choice by use case
The Vortek suits a replacement need for a specific Unidrive SP model. The findmall suits a new motor control setup where the lower price is the priority. Both are legitimate variable frequency drives; the difference between them is condition, model specificity, and overall cost.