HP Z4 G4 Workstation Intel Xeon W-2123 Workstation PC (A-Grade Refurbished)
64GB RAM - 512GB SSD - Nvidia Quadro P4000 - Win11 Pro - Reconditioned by PBTech - 1 Year Warranty
HP Z4 G4 Workstation Intel Xeon W-2123 Workstation PC (A-Grade Refurbished)
64GB RAM - 512GB SSD - Nvidia Quadro P4000 - Win11 Pro - Reconditioned by PBTech - 1 Year Warranty
- Brand: HP
- MPN: EXWKSHP40451
- Part #: EXWKSHP40451
- UPC:
- Brand: HP
- MPN: EXWKSHP40451
- Part #: EXWKSHP40451
- UPC:
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HP Z4 G4 Workstation Intel Xeon W-2123 Workstation PC (A-Grade Refurbished) 64GB RAM - 512GB SSD - Nvidia Quadro P4000 - Win11 Pro - Reconditioned by PBTech - 1 Year Warranty
- Brand: HP
- MPN: EXWKSHP40451
- Part #: EXWKSHP40451
Product URL: https://www.pbtech.co.nz/product/EXWKSHP40451/api/files/api/files/api/files/image?path=imgad/aib/CommonX_20260113173638.png
| Branch | New Stock | On Display |
|---|---|---|
| Auckland - Albany | 0 | |
| Auckland - Glenfield | 0 | |
| Auckland - Queen Street | 0 | |
| Auckland - Auckland Uni | 0 | |
| Auckland - Westgate | 0 | |
| Auckland - Penrose | 0 | |
| Auckland - Henderson (Express) | 0 | |
| Auckland - St Lukes | 0 | |
| Auckland - Manukau | 0 | |
| Hamilton | 0 | |
| Tauranga | 0 | |
| New Plymouth | 0 | |
| Palmerston North | 0 | |
| Petone | 0 | |
| Wellington | 0 | |
| Auckland - Head Office | 0 | |
| Auckland - East Tamaki Warehouse | 1 | |
| Christchurch - Hornby | 0 | |
| Christchurch - Christchurch Central | 0 | |
| Dunedin | 0 |
Features
NOTE: Unless otherwise specified, a power cord is not included with this product and must be purchased separately.
your wallet will love!






The HP Z4 G4 Workstation is engineered for professionals who require uncompromising performance, reliability, and scalability. Powered by the Intel Xeon W-2123 processor, this workstation is designed to handle intensive applications such as 3D rendering, CAD design, video editing, engineering simulations, and data analysis. With enterprise-class architecture and workstation-grade components, it delivers stable and consistent performance even under sustained heavy workloads.
Powerful Intel Xeon Processing
At the heart of the HP Z4 G4 is the Intel Xeon W-2123 processor, built to provide dependable multi-core performance for professional environments. Xeon processors are known for their reliability and ability to manage complex computing tasks with precision. Whether you are working on large design files, running multiple virtual machines, or processing detailed visual projects, this workstation ensures smooth and efficient operation.
Massive 64GB RAM for Seamless Multitasking
Equipped with an impressive 64GB of RAM, this workstation allows you to run demanding software and multiple applications simultaneously without slowdowns. Large memory capacity is essential for professionals working with high-resolution media files, complex 3D models, or data-heavy programs. The generous RAM ensures faster rendering times, improved responsiveness, and enhanced workflow productivity.
Fast and Reliable 512GB SSD Storage
The integrated 512GB Solid State Drive delivers rapid boot times, fast file access, and improved overall system responsiveness. Compared to traditional hard drives, SSD technology significantly reduces load times for applications and large project files. This ensures a smoother computing experience and allows you to focus on your work without delays.
Nvidia Quadro P4000 Professional Graphics
Featuring the Nvidia Quadro P4000 graphics card, this workstation is built for professional visual computing. Designed specifically for creators, designers, engineers, and architects, the Quadro P4000 offers reliable performance in graphics-intensive applications. It provides optimized drivers and certification for leading professional software, delivering accurate rendering, stable performance, and smooth visual output for complex projects.
Windows 11 Pro for Business and Productivity
Pre-installed with Windows 11 Pro, the HP Z4 G4 Workstation offers advanced security features, enhanced productivity tools, and seamless integration within business environments. Windows 11 Pro supports remote desktop functionality, enterprise-grade encryption, and improved multitasking capabilities, making it suitable for both office and remote professional use.
A-Grade Refurbished Quality by PB Tech
This unit is A-Grade Refurbished and professionally reconditioned by PB Tech, ensuring excellent cosmetic condition and reliable performance. Each workstation undergoes thorough testing, quality checks, and refurbishment processes to meet high standards. This provides customers with enterprise-level performance at a more affordable price point, making it a cost-effective solution for businesses and professionals.
Peace of Mind with 1 Year Warranty
Backed by a 1 Year Warranty from PB Tech, this HP Z4 G4 Workstation offers additional assurance and support. The warranty coverage reflects confidence in the product's quality and reliability, allowing you to invest with peace of mind.
Front Panel View

1) Power button
2) Hard drive activity light
3) Audio-out (headphone)/Audio-in (microphone) combo jack
4) UCB SuperSpeed 5, 10, or 20 Gbps port with HP Sleep and Charge
5) USB SuperSpeed 5, 10, or 20 Gbps port
6) USB Type-C® SuperSpeed ports (2)
7) Memory card reader
Rear Panel View

1) Power button
2) Audio line-in connector (blue)
3) Audio line-out connector (green)
4) PS/2 mouse port
5) PS/2 keyboard port
6) USB SuperSpeed 5, 10, or 20 Gbps ports (6)
7) Cable-only slot 15 PCIe card slots (5)
8) Power supply Built-In Self-Test (BIST) light
9) Power connector
10) Security cable slot
11) Security lock loop
12) RJ-45 (network) jack
13) RJ-45 (network) jack with Active Management Technology (AMT)
14) PCIe card release latches
Your computer model might look slightly different from the illustrations in this section. Refer to link to find your exact configuration - User Guide
PB Tech is a HP Gold Partner


Specifications
Model
HP Z4 G4
Form Factor
Tower
CPU
Intel Xeon W-2123
Graphics
Nvidia Quadro P4000
Memory
64GB RAM
Storage
512GB SSD
WiFi
No
Operating System
Windows 11 Pro
Warranty
1 Year Warranty
