| Component | Specification |
|---|---|
| Model | HP Z1 Entry Tower G5 Workstation |
| Condition | Excellent Refurbished. Minor cosmetic scratches and marks. For more info, click here. |
| Processor | Intel Core i9-9900K Unlocked (9th Gen, 8C/16T, up to 5.00 GHz) |
| Memory | 32GB DDR4 |
| Primary Storage | 1TB M.2 NVMe SSD |
| Secondary Storage | 4TB HDD |
| GPU | NVIDIA Quadro RTX 4000 8GB GDDR6 |
| Form Factor | Professional Workstation Tower (Z1 G5, ISV-certified) |
| Operating System | Windows 11 Pro |
| Warranty | 1-Year CLS Warranty |
Original price was: $1,999.$1,699Current price is: $1,699.
1 in stock
| Component | Specification |
|---|---|
| Model | HP Z1 Entry Tower G5 Workstation |
| Condition | Excellent Refurbished. Minor cosmetic scratches and marks. For more info, click here. |
| Processor | Intel Core i9-9900K Unlocked (9th Gen, 8C/16T, up to 5.00 GHz) |
| Memory | 32GB DDR4 |
| Primary Storage | 1TB M.2 NVMe SSD |
| Secondary Storage | 4TB HDD |
| GPU | NVIDIA Quadro RTX 4000 8GB GDDR6 |
| Form Factor | Professional Workstation Tower (Z1 G5, ISV-certified) |
| Operating System | Windows 11 Pro |
| Warranty | 1-Year CLS Warranty |
Original price was: $3,439.$3,420Current price is: $3,420.
Original price was: $3,028.$2,850Current price is: $2,850.
Original price was: $3,799.$3,450Current price is: $3,450.
Original price was: $5,463.$5,210Current price is: $5,210.
Original price was: $2,299.$2,190Current price is: $2,190.
Original price was: $2,968.$2,890Current price is: $2,890.
The HP Z1 Entry Tower G5 is an Excellent Refurbished professional ISV-certified workstation powered by the Intel Core i9-9900K unlocked 8-core / 16-thread desktop processor at up to 5.00 GHz, paired with a professional NVIDIA Quadro RTX 4000 8GB GDDR6 graphics card with real-time ray tracing and AI acceleration, 32GB DDR4 RAM, a fast 1TB M.2 NVMe SSD for boot and applications, and a generous 4TB HDD for bulk storage. From HP’s Z-series professional workstation line, the Z1 Entry Tower G5 combines ISV certifications for professional applications (SolidWorks, AutoCAD, Adobe Creative Cloud, Autodesk Revit and similar), a proper workstation chassis with tool-less service access, and genuine desktop-class thermals that let the i9-9900K sustain full performance under load. This is a serious workstation configuration for professionals who need real GPU acceleration alongside strong CPU compute and massive local storage, at a refurbished price point dramatically below a new equivalent.
This HP Z1 Entry Tower G5 is graded Excellent Refurbished, meaning it has been fully tested and is in near-perfect working condition with only minor cosmetic scratches or marks from previous use. It has been professionally inspected, cleaned and stress tested by our in-house technical team in Sydney and comes with a genuine HP power cable and 1-Year CLS Warranty with Windows 11 Pro pre-installed.
| Component | Specification |
|---|---|
| Model Name | HP Z1 Entry Tower G5 Workstation |
| Condition | Excellent Refurbished. Minor cosmetic scratches and marks. For more info on our grading, click here. |
| Processor | Intel Core i9-9900K Unlocked (9th Gen Coffee Lake Refresh) |
| Cores / Threads | 8 Cores / 16 Threads |
| Base / Turbo Speed | 3.60 GHz / up to 5.00 GHz Turbo Boost |
| Cache | 16 MB Intel Smart Cache |
| CPU TDP | 95W (Unlocked K-series desktop CPU) |
| Memory | 32GB DDR4 |
| Primary Storage | 1TB M.2 NVMe SSD (Boot Drive, fast application storage) |
| Secondary Storage | 4TB HDD (Bulk data, project archives, media libraries) |
| Total Storage | 5TB combined (1TB NVMe SSD + 4TB HDD) |
| Integrated Graphics | Intel UHD Graphics 630 (integrated in CPU, secondary/idle output) |
| Discrete Professional GPU | NVIDIA Quadro RTX 4000 8GB GDDR6 (Turing, ISV-certified professional graphics) |
| CUDA / Tensor / RT Cores | 2304 CUDA / 288 Tensor / 36 RT Cores |
| GPU Outputs | 3x DisplayPort 1.4, 1x USB-C VirtualLink (from RTX 4000) |
| Form Factor | Professional Workstation Tower (HP Z1 Entry G5 chassis, tool-less service) |
| Operating System | Windows 11 Pro (Genuine) |
| Connectivity | Multiple USB 3.1 Gen 1/Gen 2, USB-C, RJ45 Gigabit Ethernet, 3.5mm Combo Audio, Front and Rear I/O |
| Expansion | Workstation-class PCIe expansion slots, additional M.2 NVMe support, multiple 3.5 inch and 2.5 inch drive bays |
| Security | TPM 2.0, HP Sure Start firmware self-healing, HP BIOSphere |
| Power Supply | 500W 92% Efficient HP Enterprise-Grade PSU (sized for RTX 4000) |
| ISV Certifications | Yes, HP Z-series ISV-certified for SolidWorks, AutoCAD, Autodesk Revit, Adobe Creative Cloud, ArcGIS and other professional applications |
| Included Accessories | Genuine HP Power Cable |
| Warranty | 1-Year CLS Warranty (Australian Coverage) |
The HP Z1 Entry Tower G5 with Core i9-9900K, 32GB DDR4 RAM, 1TB NVMe + 4TB HDD dual storage and NVIDIA Quadro RTX 4000 professional graphics is ideal for CAD engineers, architects, video editors, 3D artists, VFX and animation professionals, machine learning practitioners doing local inference or fine-tuning, GIS analysts running ArcGIS, engineering simulation users, indie game developers, small studios and independent professionals who need a genuine ISV-certified workstation with real ray-tracing accelerated professional graphics at a refurbished price point well below new equivalents. The 5TB dual-tier storage configuration makes this particularly well suited to users working with large project files and media libraries. Buyers needing extreme 18+ core multi-threaded compute for full-time render farm work should consider our Dell Precision 5820 X-Series listings with Core i9-10980XE Extreme Edition.
Computer and Laptop Sales (CLS) is an ISO 9001 certified refurbished computer retailer based in Sydney, Australia. Every device is professionally inspected, cleaned, stress tested and graded by our in-house technical team. You receive a fully tested machine with genuine software, genuine accessories and a 1-Year Australian warranty. Free shipping is available across Australia on eligible orders. Learn more about our refurbished grading system here.
This product has no individual product reviews yet, so we show store-level feedback from public review platforms.
Customers mention quick service, smooth delivery and refurbished devices arriving in good working condition.
Fast service & deliverySeveral customers say their laptops or Surface devices arrived clean, working well and better than expected.
Product conditionBuyers highlight easy ordering, good pricing and strong value for refurbished computers.
Good valueCustomers mention helpful communication when questions or sales issues needed to be resolved.
Customer supportSome feedback mentions accessory or charger issues, with support expected under the included warranty process.
Balanced feedbackCustomers report receiving working products on time and being satisfied with performance after purchase.
Reliable performanceIn-store customers mention helpful advice, patience and support when choosing the right laptop.
Helpful in-store adviceCustomers describe refurbished laptops as good quality, clean and working well for everyday use.
Refurbished qualityReviewers mention friendly staff and practical help with choosing devices for school, home and work.
Friendly staffCustomers mention competitive pricing and good deals across laptops and computer equipment.
Great pricesView the latest public Google reviews directly to see recent customer feedback before buying.
Latest Google feedbackAcross public platforms, customers most often mention service, value, fast delivery and product condition.
Overall store reputationThese are store-level review highlights, not reviews for this exact product. Product-specific WooCommerce reviews will appear here automatically once this product receives reviews.
Original price was: $4,100.$3,240Current price is: $3,240.
Original price was: $450.$350Current price is: $350.
Original price was: $420.$340Current price is: $340.
Original price was: $1,270.$1,190Current price is: $1,190.
Comprehensive testing by qualified professionals.
Most orders dispatched within 1-2 business days*
Dedicated team providing world class support
Industry leading 12 month (RTB) warranty
