TECHNICAL

WHITE PAPER

CONTENTS & NAVIGATION

1 Introduction

A complete remote
solution

2 Rack Mounting for

the HP Z2 Mini G3/G4
Workstation

Rack Mounting for the HP

Z2 Tower G4

3 HP Z4 G4 and HP Z6 G4
Workstations

Rack Mounting for the HP

Z8 G4 Workstations

How HP Rack Kits fit “U”

4 Current generation HP
Desktop Workstations

Previous generation HP
Desktop Workstations

5 Environmentally friendly

Conclusion

RACK MOUNTING AND

THE HP WORKSTATION

Whether it is an IT technician servicing a single rack, or a team of professionals managing multiple data centers–with
HP Rack Mounting Solutions, everyday tasks are made easy. HP Rack Mounting kits are engineered with the same
customer-centric design philosophies that have made the Z Workstation product line a continuing success.

To maximize rack density, HP engineers have designed a low-profile fixed-rail solution that can be customized
on-the-spot to fit the HP Z2 Mini G4, HP Z2 Tower G4, HP Z4 G4 or HP Z6 G4 Workstations. The system-tray
features captive fasteners, allowing for quick and easy tool-free access to the Workstation.

For the HP Z8 G4 Workstation, HP continues to offer an enterprise-class rail solution that fully extends–allowing for
in-rack configuration of the Workstation. Gaining access to the interior components of a rack mounted HP Z8 G4
Workstation is a tool-free operation.

1
CONTENTS & NAVIGATION

1 Introduction

A complete remote
solution

2 Rack Mounting for

the HP Z2 Mini G3/G4
Workstation

Rack Mounting for the HP

Z2 Tower G4
Figure 1. HP Z2 Mini G4 Racked Figure 2. HP Z8 Racked

3 HP Z4 G4 and HP Z6 G4
Workstations

A COMPLETE
Rack Mounting for the HP
Z8 G4 Workstations

REMOTE SOLUTION
How HP Rack Kits fit “U”

4 Current generation HP
Desktop Workstations

Previous generation HP Racked HP Workstations, when combined with HP Remote Graphics Software (RGS)1, HP’s industry-leading
Desktop Workstations
remote desktop software, and HP Thin Clients provide a complete remote centralized computing solution that is
5 Environmentally friendly an excellent alternative to virtualization. With a centralized Workstation solution from HP you have faster access
to centralized storage, increased security, the ability to remotely manage small offices and distributed teams, and
Conclusion
the confidence of 24/7 operation2 that HP Z Workstations are known for.

With the variety of HP Workstations that can be racked -from the entry HP Z2 Mini to the ultra-high end HP Z8
you can choose the performance that matches your unique needs. And with HP RGS, which provides a high
performance remote user experience and which is included at no additional cost, a robust centralized solution
is easy and inexpensive to implement.

RACK MOUNTING
FOR THE HP Z2 MINI G3/G4
WORKSTATION
The solution for racking the HP Z2 Mini G3 or HP Z2 Mini G4 uses the Z2/Z4/Z6 Depth Adjustable Rail Rack Kit
(2HW42AA) along with the HP Z2 Mini Rack Tray Support Kit (1A4W4AA). Each HP Z2 Mini requires the HP Z2 Mini
Chassis and ePSU Rack Mount Bracket kit (3RW67AA). The (3RW67AA) mounting bracket kit includes 1 bracket
for the HP Z2 Mini chassis and 1 bracket for the HP Z2 Mini external power supply.

The HP Z2/Z4/Z6 Depth Adjustable Fixed Rail Rack Kit includes a set of fixed-rail support brackets that attach
directly to the rack and provide a secure mounting platform for the system-tray and Workstation. The fixed-rails
are adjustable and can accommodate racks that are 24-30 inches deep. The HP Z2 Mini is installed in the vertical
position and 7 Minis can fit in the 5U space.

Figure 3. The HP Z2 Mini installed in the HP Z2/Z4/Z6 Depth Adjustable Fixed Rail Rack Kit (2HW42AA) using the HP Z2 Mini Rack
Tray Support Kit (1A4W4AA – Qty1) and the HP Mini Chassis and ePSU Rack Mount Brackets (3RW67AA – Qty 7)

TECHNICAL WHITE PAPER 2

 RACK MOUNTING FOR THE
CONTENTS & NAVIGATION

1
HP Z2 TOWER G4,
Introduction

A complete remote
solution

2 Rack Mounting for

the HP Z2 Mini G3/G4
Workstation
HP Z4 G4 AND HP Z6 G4
Rack Mounting for the HP
Z2 Tower G4 WORKSTATIONS
3 HP Z4 G4 and HP Z6 G4
Workstations The HP Z2/Z4/Z6 Depth Adjustable Fixed Rail Rack Kit (2HW42AA) includes a set of fixed-rail support brackets that
attach directly to the rack and provide a secure mounting platform for the system-tray and Workstation. The fixed-rails
Rack Mounting for the HP
Z8 G4 Workstations are adjustable and can accommodate racks that are 24–30 inches deep. The system-tray is engineered to provide
tool-free access to the Workstation, allowing the Workstation to be serviced without removing it from the rack.
How HP Rack Kits fit “U”

4 Current generation HP
Desktop Workstations

Previous generation HP
Desktop Workstations

5 Environmentally friendly

Conclusion

Figure 4. The HP Z2/Z4/Z6 Depth Adjustable Fixed Rail Rack Figure 5. The HP Z4 G4 installed in the HP Z2/Z4/Z6 Depth
Kit (2HW42AA) exploded view Adjustable Fixed Rail Rack Kit (2HW42AA)

RACK MOUNTING FOR THE

HP Z8 G4 WORKSTATIONS
The HP Z640/Z840/Z8 G4 Rail Rack Kit (2FZ77AA) features enterprise-class, three-section ball-bearing extension rails.
These rails are fully extendable, allowing the unit to slide completely out of the rack for servicing. Whether it is adding
memory, swapping hard disk drives or installing an option card, upgrading a rack mounted Workstation is a snap.

The HP Z640/Z840/Z8 G4 Rail Rack Kit rails installs into racks without using tools, making setup convenient and
efficient. The inner slide and mounting flanges attach to the computer chassis using a set of screws for added
strength and stability. The top mounting holes are concealed underneath the top plastic trim, which must be
removed to attach the inner slide and mounting flanges.

Figure 6. A Rack Mounted HP Z8 G4 installed with an HP Z640/Z840/Z8 G4 Rail Rack Kit (2FZ77AA) showing access to interior
Workstation components

TECHNICAL WHITE PAPER 3

CONTENTS & NAVIGATION Some of our customers need to mount their Workstations into racks that are only 24 inches deep (such as those
commonly used in the Broadcast industry), instead of the 29-30 inch deep racks that are commonly used in the

1 Introduction
industry (including HP racks), so adjustability is an important objective. The HP Z640/Z840/Z8 G4 Rail Rack Kit is
adjustable to accommodate racks 24–30 inches deep. For convenience, the adjustable rails are shipped configured
to fit standard racks.
A complete remote
solution

2
For customers looking to upgrade an existing rack mounted HP Z840, HP is offering the HP Z8 Rack Rail Upgrade
Rack Mounting for Kit (2FZ76AA). The kit includes a set of inner slide rails, front flanges, and hardware necessary to perform a
the HP Z2 Mini G3/G4
Workstation seamless upgrade to the new, more powerful, HP Z8 G4–all without removing rack kit hardware from the rack.
Simply attach the HP Z8 Rack Rail Upgrade Kit to the HP Z8 G4, remove the HP Z840 from the rack, and replace
Rack Mounting for the HP with the configured HP Z8 G4.
Z2 Tower G4

3 HP Z4 G4 and HP Z6 G4
Workstations

Rack Mounting for the HP

Z8 G4 Workstations

How HP Rack Kits fit “U”

4 Current generation HP
Desktop Workstations

Previous generation HP
Desktop Workstations

5 Environmentally friendly

Conclusion
Figure 7. Figure 8.
The HP Z640/Z840/Z8 G4 Rail Rack Kit (2FZ77AA) components The HP Z8 Rack Rail Upgrade Kit (2FZ76AA) components

HOW HP RACK KITS FIT “U”

Broadcast and IT racks are typically measured in units of “U”–where each “U” is equal to 1.75” (44.45 mm).
HP rack kits are designed to optimize the distribution of Workstations in a server rack–providing each unit
with sufficient airflow to maintain ideal operating temperatures and adequate clearances to gain access to the
Workstation. Refer to the table below to determine which rack kit is compatible with your Workstation, and how
much space is required.

CURRENT GENERATION HP
DESKTOP WORKSTATIONS
HP Product Rack Type
Description HP Z2 Mini G4 HP Z2 Tower G4 HP Z4 G4 HP Z6 G4 HP Z8 G4
Number Supported1,2

2HW42AA HP Z2/Z4/Z6 Depth 5U* 4U 4U 4U

IT Rack,
Adjustable Fixed Rail
Broadcast Rack
Rack Kit

1A4W4AA HP Z2 Mini Rack Tray IT Rack, Broadcast

5U*
Support Kit Rack

3RW67AA HP Z2 Mini Chassis

IT Rack, Broadcast
and ePSU Rack Mount 5U*
Rack
Brackets

2FZ77AA HP Z640/Z840/Z8 G4 IT Rack,

5U
Rail Rack Kit Broadcast Rack 3

2FZ76AA HP Z8 Rack Rail IT Rack,

5U
Upgrade Kit Broadcast Rack 3

*Need for rack mounting the Z2 Mini

TECHNICAL WHITE PAPER 4

CONTENTS & NAVIGATION
PREVIOUS GENERATION
1
HP DESKTOP WORKSTATIONS
Introduction

A complete remote
solution

2
HP Product Description Rack Type HP Z2 Mini G3 HP Z240 Tower HP Z440 HP Z640 HP Z840
Rack Mounting for Number Supported1,2
the HP Z2 Mini G3/G4
2HW42AA HP Z2/Z4/Z6 Depth IT Rack, 5U*
Workstation
Adjustable Fixed Rail Rack Kit Broadcast Rack

1A4W4AA HP Z2 Mini Rack Tray IT Rack, Broadcast 5U*

Rack Mounting for the HP
Support Kit Rack
Z2 Tower G4
HP Z2 Mini Chassis and ePSU IT Rack, Broadcast 5U*

3
3RW67AA
HP Z4 G4 and HP Z6 G4 Rack Mount Brackets Rack
Workstations
2FZ77AA HP Z640/Z840/Z8 IT Rack,Broadcast 4U 5U
Rack Mounting for the HP G4 Rail Rack Kit Rack 3
Z8 G4 Workstations
WH340AA HP Z2/Z4 Depth Adjustable IT Rack, Broadcast 4U 4U
Fixed Rail Rack Kit Rack
How HP Rack Kits fit “U”

4 Current generation HP
Desktop Workstations
*Need for rack mounting the Z2 Mini

Previous generation HP
Desktop Workstations

5 Environmentally friendly

Conclusion

Figure 9. Layout and dimensions of a 5U rack space Figure 10. Rack mounting hole positioning in 1U rack space

ENVIRONMENTALLY FRIENDLY
HP is committed to environmental sustainability. The HP Workstation design team has taken a proactive approach (beyond
just industry regulations) to recyclability and selecting materials that reduce the risk to the environment and health.

CONCLUSION
As a technology leader, HP continues to lead the way in innovative design solutions for Rack Mounting. HP Rack
Mounting kits are engineered to improve the end user experience. HP is using its extensive experience in customer-
centric designs to develop environmentally friendly, highly accessible, Rack Mounting Solutions for today, and new
innovations for tomorrow’s more powerful systems.

FOR MORE INFORMATION

hp.com/go/rgs
HP’s industry-leading remote desktop software – a key enabler for using a Workstation in a rack.
hp.com/go/whitepapers
White papers with more depth on the capabilities and benefits of HP Z Workstations.
hp.com/go/workstations
Information about HP Workstations.

1
IT Racks typically have 30” depth between the front and rear rails, and either round or square untapped holes with clip-on nuts.
2
Broadcast racks have a depth of 24” between the rails and the mounting holes are typically tapped for #10-32 threads.
3
Parts for installing the sliding rack mount kit in HP legacy racks are sold separately in adapter kit part number WD587AA and are compatible with the following
rack models: E3660B, E3661B, E3662B, E7590A, J1450B or J1487A/B, regarding parts for legacy racks to match current gen note for kit 2FX77AA.

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4AA7-1800ENW, May 2020