HPE 874633-B21 Controller Mezzanine Card PCI-E
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Why 874633-B21 HPE 4 Port Nvme PCI Express X8 Bulk is the best?

Availability: In Stock
Part Number#: 874633-B21
List Price was: $701.44
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3% Discount on Checkout

New Bulk Pack

Short Description:
874633-B21 HPE 4 Port Nvme PCI Express X8 Mezzanine Card For Gen10. New Bulk Pack.

Interface Types of This Product: Mezzanine Card PCI-E

Product Condition:
New Bulk Pack
Warranty provided by ALLHDD.COM:
30 Days
We are giving specifications below, why one should consider procuring HPE PCI-E Mezzanine Card Controller features, a general overview, description, performance specification, relevant images, a competitive price infographic, and technical information about the 874633-B21 model with compatibility.

Key Features and Benefits of the Nvme PCI Express

The HPE 874633-B21 4 Port Nvme PCI Express X8 Mezzanine Card is a high-performance storage solution that provides increased storage capabilities to HPE ProLiant Gen10 servers. Some of the key features and benefits of this card include:

  • Non-Volatile Memory Express (NVMe) Technology: The card supports NVMe, which provides fast and efficient data storage and retrieval, resulting in improved server performance.
  • High-Speed Connectivity: With four NVMe ports, this card provides high-speed data transfer rates of up to 32 Gbps, making it ideal for demanding workloads such as database management, data analytics, and virtualization.
  • Mezzanine Card Design: This card is designed as a mezzanine card, which means it can be easily installed within the server without the need for additional cabling or components.
  • Scalability: The four NVMe ports on this card allow for multiple NVMe drives to be connected to the server, providing increased storage capacity and scalability for growing businesses.
  • Improved Energy Efficiency: This card uses low-power consumption components, which helps to reduce energy consumption and lower operating costs.
  • Compatibility: This card is specifically designed for HPE ProLiant Gen10 servers, ensuring compatibility and reliability.
  • Enhanced Data Protection: The card supports advanced data protection features, such as end-to-end data protection, error correction, and data encryption, providing enhanced security and data protection for businesses.

Easy Installation and Maintenance of the HPE 874633-B21

The 874633-B21 HPE 4 Port Nvme PCI Express X8 Mezzanine Card is designed to be easily installed and maintained in HPE ProLiant Gen10 servers. The card is a mezzanine card that is inserted into a specific slot in the server motherboard, providing direct access to the server's PCIe bus for high-speed data transfer.

The installation process for the card is straightforward and can be completed in a few steps:

  • Open the server's chassis to access the motherboard
  • Locate the mezzanine card slot on the motherboard
  • Insert the card into the slot, securing it with the retention clip
  • Connect any necessary cables or power sources to the card
  • Close the server's chassis and power on the server

Maintenance of the card is also simple, as it requires minimal upkeep. The card has a built-in firmware that is automatically updated when the server is updated with the latest firmware version. In the event of any issues with the card, it can be easily removed and replaced without affecting the rest of the server components.

It is recommended to check the HPE ProLiant server compatibility matrix for the latest information on firmware compatibility and system requirements for the 874633-B21 card.

Compatibility with HPE ProLiant ML350 Gen10 Server

The 874633-B21 HPE 4 Port Nvme PCI Express X8 Mezzanine Card is compatible with the following HPE ProLiant Gen10 server models:

  • HPE ProLiant DL360 Gen10
  • HPE ProLiant DL380 Gen10
  • HPE ProLiant DL560 Gen10
  • HPE ProLiant ML350 Gen10
  • HPE ProLiant XL450 Gen10

It requires a minimum of 1 x Gen10 server configured with at least one processor and 1 x HPE 16 GB or larger DDR4 SmartMemory DIMM. The card supports both boot and data drives, and is compatible with NVMe 1.3 and SAS drives.

This card supports the following operating systems:

  • Microsoft Windows Server 2016
  • Microsoft Windows Server 2012 R2
  • Red Hat Enterprise Linux (RHEL) 7.5 and 7.6
  • SUSE Linux Enterprise Server (SLES) 12 SP3 and SP4
  • VMware vSphere 6.7 Update 1 and later

General Information

  • Brand: HPE
  • MPN : 874633-B21
  • Type: Controller
  • Sub-Type: Mezzanine Card

Technical Specifications of HPE 874633-B21

Here are the technical specifications for the HPE 874633-B21 4 Port NVMe PCI Express X8 Mezzanine Card:


  • PCI Express X8, Gen3, Mezzanine form factor


  • HPE ProLiant Gen10 Servers
  • HPE Synergy Compute Modules

Storage Interface:

  • NVMe
  • 4 ports


  • Data transfer rates up to 32 Gb/s

Supported Operating Systems:

  • Microsoft Windows Server 2016
  • Red Hat Enterprise Linux (RHEL) 7.5
  • VMware vSphere 6.5 and 6.7


  • Length: 174.6mm (6.87 in)
  • Width: 66.0mm (2.60 in)
  • Height: 12.9mm (0.51 in)


  • 0.45 lb (0.2 kg)

Operating Environment:

  • Temperature: 5°C to 55°C (41°F to 131°F)
  • Humidity: 8% to 90% relative humidity, non-condensing

Power Consumption:

  • Max power consumption: 12.75W

About New Bulk Pack Products

New Bulk Pack products come with clamshell boxes and do not have any manufacturer warranty. Many times manufacturers disassemble whole units to use parts or pulled from a new system. Typically, this product doesn't come with software or instructions unless indicated and no Manufacturer’s genuine warranty. You can take note these are not brand new products.

Mezzanine adapter

Looking for where to get a mezzanine card or "daughterboard"? Look no further, we offer a variety of Mezzanine cards that will meet your needs. With our mezzanine card solutions, you can extend your system's functionality by providing means of connecting other peripheral devices.

A mezzanine card is a miniature Industry Standard Architecture (ISA) card or a Peripheral Component Interconnect (PCI) card. It is a Printed circuit board and engineered to the IEEE P1386.1 standard. IP Card (Industry Pack card) is a typical and most popular form of a mezzanine card; it provides a 16-bit data path with a 3.9 x 1.8 inches, it is adapted to fit into an IP-to-PCI adapter card via its 50-pin connectors. Another type of the mezzanine card is the PCI Mezzanine (PMC) card, unlike the IP card, it provides a 32, or 64-bit data path and has 64-pin connectors. The IP card and the PCI card are widely used with VME expansion bus. VME expansion technology supports up to 21 cards on a single backplane and has found great industrial, military, and telecommunications applications. Our wide range of top-quality IEEE standard mezzanine cards guarantees high-speed functionality across various systems. You can choose from a collection of cards including Expansion Card, 2 Port, 1 Port, 4 Port, PCI-E, Poweredge here on allhdd.com.

The mezzanine adapter allows companies to develop products that are compatible with the well-established PCI bus. However, they flaunt a smaller and more sturdy unit than the standard PCI plug-in cards.

Mezzanine card options

The mezzanine card comes in various options categorized as type A mezzanine cards, and server blade, the type B mezzanine cards determine where the mezzanine gets installed. You can install Type-A mezzanine cards on mezzanine 1, 2, and 3 connectors. Type A mezzanine cards are suited for expansion slot 1- 8x PCI express 3.0 Type-A. The expansion slot is compatible with the dual port mezzanine cards, the first port of the mezzanine card is for interconnecting module 3, and the other is for bay 4 (mezzanine slot 1 case).

Expansion slots 2, and 3 – X16 PCI-E 3.0 Type B supports both type A and type B mezzanine cards. These expansion slots support the 2 ports mezzanine card and the 4 port mezzanine cards, for the 2 port cards, the first port is routed to the interconnect module bay 5, while the second is routed for bay 6. For the 4 ports cards, you can route the first port to interconnect module bay 5, the second to bay 6, the third to bay 7, and the last to bay 8. Optional expansion card enables network connectivity or provides fibre channel support.

OCP Mezzanine card 2.0

OCP mezzanine card for Intel v2.0 motherboard has been developed to serve mainly the 1 port and 2 ports 10G Ethernet card. Significant modifications have been made to form factor to accommodate the new uses cases.

Allhdd.com offers quality mezzanine cards with registered trademarks, and you will enjoy free ground shipping on all orders placed within the United States. There is a professional customer help desk to attend to all issues at all times.


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ALLHDD guarantees that the products will not have defects in material that will affect the product's functionality during the Standard Warranty Period. The warranty period starts when the merchandise/items from our warehouse.

What does ALLHDD.Com warranty cover?

30-days to 3 years warranty:

Replacement or refund. In the case of material defects, we will try to replace the product first. The product will be replaced before the expiration of the original warranty. For any failure of hardware, if we cannot process the replacement of the product(s)/model(s), we will refund the original selling/invoiced price. The shipping costs and sales tax, if any, are non-refundable. ALLHDD retains the right to decide whether the item(s) will process for replacement or refund.

What is not covered by our warranty?

The reason why our warranty does not cover any problem caused by the following conditions:

(a) misuse of hardware; accidental damage; carelessness product(s) damage; shock; temperature beyond the specification of any product; faulty installation; operation; modification of goods;

(b) any misuse outside the instructions in the user manual for any specific product;

(c) damaged caused by other hardware or equipment. The warranty will void if the item is returned with physical damage, damage to the retail box, removed from the box, counterfeit labels/labelled by them, or any modifications of internal and external covers. Data loss or damages to any other equipment we do not cover by our offered warranty.

What is the Manufacturer/Brand Warranty?

In general, a manufacturer's warranty service/support is a written guarantee to the buyer of a product. Its terms assure the replacement or repair of the product, if necessary, within a specified period after the purchase (2-5 years depending on the brand/manufacturer). It is typically included in the price of the product. Products are brand new and sealed and the original manufacturer box is complete with the Manufacturer's genuine warranty. For most of the brand new/retail products that come with the manual and box, exceptions may apply (i.e., Cisco, Juniper Networks).

For the server parts (i.e., Dell, HPE) to get Full coverage of the warranty server must have a full 3- 5 years warranty. However, ALLHDD.COM will cover the warranty duration if any Manufacturer doesn't support the advertised warranty and there is no refund for those.
Final Sale items are non-returnable/refundable in any situation. Any question? please ask our team before the shipment.

Important notes:

We can provide additional warranty service/support for any product you purchase from us if you need additional warranty coverage before finalizing the order from ALLHDD.Com. You need to ask in live chat/help or call us for more information.

Individual product warranty mentioned on each item product description page/detail page.

Free Technical support on purchased items, our expert consultancy over the phone, by email, by live chat, or by remote login.


Shipping Options and Estimated Delivery Time

UPS Shipping Options:

FREE UPS® Ground (Free shipping to all orders for 48 states!)
Estimated delivery time: 4-7 business days

UPS 3 Day Select®
Estimated delivery time: 3 business days

UPS 2nd Day Air®
Estimated delivery time: 1-2 business days, Delivery by 10:30 AM or 2:00 PM

UPS Next Day Air® Standard Overnight
Estimated delivery time: Overnight 2-5 PM, Standard Overnight Delivery.

UPS Next Day Air® - Priority Overnight
Estimated delivery time: Overnight Delivery (Next Business Day) Delivery by 10:30 AM or 12:00 PM

UPS Next Day Air® First Overnight - Early A.M
Estimated delivery time: Overnight 8:00 AM, Early morning, overnight delivery for your time-critical shipments.

UPS® First Overnight - Saturday
Estimated delivery time: Overnight 8:30 AM – Saturday

FedEx Shipping Options:

FedEx Ground®
Estimated delivery time: (4–7 business days in the contiguous 48 states)
*For residential delivery via FedEx Ground use FedEx Home Delivery®
Estimated delivery time: 4−7 business days, based on the distance to the destination.

FedEx Express Saver®
Estimated delivery time: 3 business days (by 4:30 PM to U.S. businesses; by 8:00 PM to residences)
Available throughout all 50 states (except Hawaii and Alaska)

FedEx 2Day®
Estimated delivery time: 2 business days (by 4:30 PM to U.S. businesses; by 8:00 PM to residences)
Available throughout all 50 states

FedEx Standard Overnight®
Estimated delivery time: Next-business-day (by 4:30 PM to U.S. businesses and by 8:00 PM to residences)
Available throughout all 50 states (Hawaii is outbound only)

FedEx Priority Overnight®
Estimated delivery time: Next-business-day (by 10:30 PM to U.S. businesses, noon to most residences)
Available throughout all 50 states

FedEx First Overnight®
Estimated delivery time: Next-business-day (by 8:30 or 9 AM to most areas)
Available throughout all 50 states

Worldwide Shipping Options:

UPS®/FedEx® International Economy

Estimated delivery time: 4-7 business days

UPS®/FedEx® International Priority

Estimated delivery time: 2-4 business days

UPS®/FedEx® Ground Shipping Canada

Estimated delivery time: 5-8 business days

Important notes:

  • The processing of orders with Ground Shipping can take up to 24-48 hours. But we try to process all orders the same day.
  • We are not responsible for weather problems that may affect the delivery of goods by carriers. We cannot guarantee the exact delivery time, regardless of the carriers' claims.
  • If you have any specific delivery time requirements, please contact our customer support and someone from our customer service team will be able to help you.
  • You can estimate the shipping cost from the products detail page, also available on the checkout page
  • The shipping cost depends on box dimensions, weight, and zip/postal code
  • To get a FedEx® delivery service you need to mention it on the checkout page notebox.
  • For urgent shipments, please contact our customer service.
  • Shipping cut off 4:00 PM (Monday-Friday) and available blind drop shipment.