Pyramid Apex 7402-UB4 Bill Acceptor (MDB, VFM Bezel)
24V MDB Apex with VFM-style bezel for high-traffic vending locations.

The Apex 7402-UB4 is purpose-built for 24V MDB vending with a VFM-style bezel, combining proven Apex reliability with expanded capacity for high-traffic locations. Over 15 years of field success, >95% acceptance and up to 20 bills per minute on $1–$20.
Key features
- Accepts US $1, $5, $10 and $20 notes (7400 series)
- 24V MDB interface — plug-and-play with MDB vending controllers
- VFM-style bezel — drop-in fit for cabinets cut for Mars/MEI VFM validators
- 500-note non-locking stacker included
- Bill acceptance rate greater than 95%; processes up to 20 bills per minute
- Dual-stage optical anti-stringing technology with enhanced magnetic sensing
- Automatic self-calibration — no manual adjustment required
- DIP-switch and PC configuration; flash firmware updates via PRO-2, BluStream or USB cable
- Made in the USA — designed for 20+ years of field reliability
Specifications
| Model / SKU | 7402-UB4 |
|---|---|
| Denominations | $1 – $20 (USD) |
| Power / interface | 24V MDB |
| Bezel | VFM-style bezel |
| Acceptance rate | Greater than 95% |
| Speed | Up to 20 bills per minute |
| Maximum bill width | 72mm |
| Stacker | 500-note non-locking stacker |
| Security | Dual-stage optical anti-stringing + enhanced magnetic sensing |
| Calibration | Automatic self-calibration |
| Configuration | DIP switches, PC flash updates, PRO-2 or BluStream |
| Origin | Made in the USA |
Installation & setup notes
The 7402-UB4 is the MDB replacement for Mars/MEI VFM validators in vending machines — the most common vending upgrade path.
The UB4 talks MDB (Multi-Drop Bus) at 24V, the standard for snack, beverage and combo vending machines. Plug the MDB harness into the vending controller and the acceptor is recognised by the VMC — no pulse settings to match, and it coexists with MDB coin mechs and card readers on the same bus.
The VFM-style faceplate matches the opening left by Mars/MEI VFM and AE-series validators, so an upgrade needs no panel modification.
Not sure this is the right Apex?
The Apex 7000 family shares one validator platform; models differ by power/interface, bezel and denominations. The 7402-UB4 is the 24V MDB / VFM-style bezel / $1 – $20 (USD) configuration. Closest alternatives:
- Need Standard Pyramid bezel instead (bezel)? Choose the Apex 7400-UB4.
- Need Coinco-style bezel instead (bezel)? Choose the Apex 7401-UB4.
- Need 12VDC instead (power / interface)? Choose the Apex 7402-UB1.
- Need 110VAC (internal power supply) instead (power / interface)? Choose the Apex 7402-UB3.
Manuals & setup documentation
- Apex 7000 Series User Manual (UL)Full installation, DIP-switch and operation manual · PDF
- Apex 7000 Brochure (Rev D)Series overview and options · PDF
- Apex Configuration CardsPrintable coupon-style configuration cards · PDF
- Apex Connections & PinoutsHarness and connector reference · PDF
- Apex RS-232 Interface ManualSerial protocol reference for integrators · PDF
- Apex 7000 cleaning instructionspyramidacceptors.com
- Acceptor Tools setup instructions (PC configuration)pyramidacceptors.com
- Pyramid software downloads (Acceptor Tools, firmware)pyramidacceptors.com
Related products
All products
Apex 7400-UB4 Bill Acceptor (MDB)
24V MDB vending configuration with standard bezel — plug-and-play for MDB machines.

Apex 7401-UB4 Bill Acceptor (MDB, Coinco Bezel)
24V MDB Apex with Coinco-style bezel for MDB vending machines.

Apex 7402-UB1 Bill Acceptor (VFM Bezel)
12VDC Apex with VFM-style bezel for Mars/VFM replacement installs.
