ProLiant ML Tower Server Parts

ProLiant ML Tower Server Parts

The ProLiant ML line is the tower half of the ProLiant range: a vertical chassis built to stand on a floor or a bench rather than to mount on rails. The extra internal volume is the point — a tower has room for full-height cards, deeper drive cages and external media bays that a 1U rack server cannot house. Every part on the model pages below is genuine HPE, available new and refurbished, and tested for compatibility before it ships.

What Defines an ML Tower Server

  • Vertical chassis, no rails needed: an ML stands on its own feet. Several ML models were also offered with a tower-to-rack conversion, which changes the outer chassis rather than the board, so the same machine can turn up in either orientation.
  • Power is the clearest split in the family: the smaller ML machines are built around a single fixed supply, while the larger ML chassis take hot-plug supplies that can run as a redundant pair. A hot-plug supply will not fit a fixed-supply chassis, so check which the machine has before ordering.
  • Two kinds of drive cage: entry towers often use a fixed cage with non-hot-plug drives; the larger models use hot-plug cages in SFF or LFF. The cage decides the carrier, and the two carrier types are not interchangeable.
  • Full-height, full-length expansion: a tower takes cards that will not physically fit a 1U rack server, which is why ML machines often end up carrying tape controllers and older full-height adapters.
  • External media bays: 5.25-inch bays on the front face for optical or tape, a feature the rack line largely dropped.
  • Cooling for an office, not an aisle: an ML is designed to run outside a data centre, with larger and slower fans rather than the high-static-pressure fans a rack chassis uses.

Power is the split that catches people out on ML towers. The smaller machines are built around a single fixed supply; the larger chassis take hot-plug supplies that can run as a redundant pair. A hot-plug unit will not fit a fixed-supply chassis, so open the side panel and look before ordering one.

Shop ProLiant ML Parts by Model

If the machine is horizontal and rail-mounted rather than upright, its parts are in ProLiant DL Rack Server Parts. A compact box smaller than any ML tower is likely the ProLiant Microserver, blades that slide into an enclosure are in ProLiant BL Blade Server Parts, and ProLiant models that predate the ML naming are under HPE Retired Model Server Parts. Every family sits under HPE parts by server model.

ProLiant ML Tower Server Parts FAQ

What is the difference between a ProLiant ML and a DL?
Orientation, and what fits inside. An ML is a vertical tower designed to stand on the floor; a DL is a horizontal rack chassis on rails. The tower has room for full-height cards, deeper drive cages and external media bays.

Can an ML tower be rack mounted?
Several ML models were offered with a tower-to-rack conversion, which changes the outer chassis rather than the board. The conversion parts are model-specific, so check the page for the machine you own.

Do ML servers use hot-plug power supplies?
It depends on the model. The smaller ML machines run a single fixed supply, while the larger ML chassis take hot-plug supplies that can be run as a redundant pair. A hot-plug unit will not fit a fixed-supply chassis.

How do I tell which ML generation I have?
The full model name, including the generation, is on the label at the front or top of the chassis, and iLO reports it on machines that have iLO. An ML110 G6 and an ML110 Gen10 are different servers with different parts.

Are ML drives hot-plug?
On the larger ML models with a hot-plug cage, yes. Entry ML machines often use a fixed cage with non-hot-plug drives, and the two cage types take different carriers, so the cage decides what you can order.

Are parts listed for the older ML generations?
Yes. The list above runs from the G1 towers through to Gen11, and each model has its own parts page. Models without a generation suffix, such as the ML10, the ML330e and the ML750, are listed separately.

✅ Looking for a specific ProLiant ML Tower Server part? Browse our full selection below.

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