Preparation Time

Majority of orders will be ready for local pick up or shipment within 3 days of receiving your order. If a component is not in stock, please allow 4 to 6 business days for pick-up or shipment.


We accept PayPal and Amazon Pay because of the protection they offer to both the buyer and seller. If you prefer to pay with credit or debit card, please select the PayPal payment option on the checkout page and choose 'Guest Checkout' once forwarded to PayPal. If you prefer to avoid PayPal and Amazon, we are able to charge you credit or debit card payment directly as well.

Cash, cashiers check, and bank transfer payments receive a 3% discount from the total price.

We accept Net Term POs from US government entities (federal, state, and local) as well as established educational institutions and major corporations. POs for smaller corporations will be granted net terms once they have either established a good history of orders with us, or are able to provide detailed credit references and accounting statements for our approval. For Net Terms purchases, please send request to sales@zworkstations.com or call us at (310) 844-6661. We respond to requests within one business day.

Please contact us if you have any questions regarding the payment process or are running into an issue attempting to pay via credit card, PayPal, Amazon Pay.


We welcome local pick-ups in Los Angeles. When you pick-up, we will have your HP Z Workstation connected to a display so you can view the specifications and briefly test it.

Your HP Z Workstation will be shipped in the original retail HP packaging. Upon request, we will wrap the box in clear stretch wrap to preserve the condition of the box. Quantity orders will be palletized and shipped via expedited freight.

Based on our experience, we have found that UPS has a higher percentage of damaged packages. We use FedEx since we have found them to be a bit more caring with packages.

Typical shipping duration via FedEx Ground within the US:

  • West Coast: 1-2 business days
  • Central States: 3-4 business days
  • East Coast: 4-5 business days

If you would like next-day or second-day air, please contact us for a quote.

International orders are shipped via FedEx Express Priority International which typically takes 1-3 business days considering no customs delay. See Shipping Rates Table for the shipping cost to your region. Import tax is the responsibility of the buyer. To learn about the import tax rate in your country, please contact your local customs agency or visit this Customs Duty Calculator.


We offer a two year warranty period on the 4th generation HP Z Workstations (Z4 G4, Z6 G4, Z8 G4) and a one year warranty period on the 3rd generation HP Z Workstations (Z440, Z640, Z840). For extended warranty options, please contact us as the cost will depend on your configuration. All components also carry their respective manufacturer warranty. The 4th generation HP Z Workstation chassis' are in new condition and have 3 year HP warranty. The 3rd generation HP Z Workstation chassis' are new, old stock or factory refurbished, thus have 1-2 years HP warranty remaining. (The chassis is considered the motherboard, power supply, and processor heatsinks.) Hard Drives have 3 to 5 year Western Digital warranty. Solid-state drives have 3 year Samsung warranty. Graphics cards have 3 year NVIDIA warranty. Thus, all workstations have two layers of warranty protection. Earlier generation HP Z820 and Z800 workstations are pre-owned and come with a 90 day warranty.

Our warranty period begins from the day FedEx tracking information displays the item has been delivered. Our goal is to make support simple and quick to prevent hassle and minimize downtime. For example, if you are having a problem with the hard drive, we will send you a brand new replacement hard drive with the operating system of your choice preloaded. This way, we will not have to ship the workstation back and forth since hard drive replacement on the system is user friendly.

Rest assured that each unit is thoroughly tested prior to shipment. From our past experience of selling hundreds of workstations, we have a 2% fault rate. This is typically a faulty memory module or hard drive. In this rare occasion, we immediately send out replacement parts or do whatever necessary to resolve the issue. Even if your purchase is past the warranty period, we are here to help and find a solution to any problem that may arise.


If you have a problem with the HP Z Workstation after the warranty period, we offer phone, email, and remote desktop support for the duration of you owning the system. We have a tremendous amount of experience, thus can easily diagnose issues - typically faster and easier than HP Technical Support. If your Z Workstation is out of warranty, we will help diagnose the problem, locate the replacement component or offer the replacement component directly at cost, and even provide replacement instructions.

We purchase our HP Z Workstations direct from authorized HP distributors (primarily Ingram Micro). The components we stock are new. Furthermore, we test our systems thoroughly after the customization. We are confident our Z Workstations will perform fine for years to come. We test the units for about 1.5 hours. In the rare case there is an issue, it will typically occur within the first day or two of starting to stress the unit. If the unit performs fine for the first few days, it will be fine for years to come. This is because if there is a faulty component installed, it will quickly become apparent. Otherwise, the Z Workstations are resilient systems and will run strong.

We stand by our product 100%. We sell only HP Z Workstations, so it's what we deal with all day, every day. When it comes to expertise in the product, nobody else can compete.


We offer a 14-day return period from the day FedEx tracking information displays the item has been delivered. For DOA (dead-on-arrival) units, please contact us to create a RMA (return merchandise authorization). For DOA returns, we will provide a prepaid FedEx shipping label.

For all other returns, an 15% restocking fee will be applied. For these returns, buyer to pay round trip shipping costs.

Returns sent without prior notice and RMA will be refused.


New: Purchased new from a HP authorized distributor. Never used. Ships in original manufacturer packaging.

Refurbished: Pulled from corporate environment in working condition. Tested upon arrival at our location and also after customization. Cosmetically grade A or B. Overall in good condition, but could have light scratches / scuffs. Ships in double-wall brown box with durable packaging material.