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Colin Fraser
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Rear kit supports demanding Xeon workloads effectively.
878704-B21
HPE XL230k Gen10 Xeon-P 8156 Rear Kit
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Name:
878704-B21
- Description:
- HPE XL230k Gen10 Xeon-P 8156 Rear Kit
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878704-B21 Overview
878704-B21 is an Intel Core processor from the Intel 13th Gen Raptor Lake series featuring a LGA 1700 socket, 8 cores with 16 threads, a base clock speed of 3.6 GHz and a boost clock speed of 4.9 GHz. It offers 8 MB of L2 cache and 24 MB of L3 cache, a thermal design power (TDP) of 125W, and integrated Intel UHD Graphics 770 with a base frequency of 350 MHz and a max dynamic frequency of 1350 MHz.
The processor supports both DDR4 and DDR5 memory through dual channel configurations and is equipped with PCIe 5.0 for high-speed connectivity. Designed for gaming and overclocking enthusiasts, 878704-B21 comes unlocked for overclocking and is compatible with Intel 600 and 700 series chipsets, making it ideal for high-performance desktop applications.
878704-B21 price is is available on request. Get immediate quote.
Request bulk order quote for 878704-B21 for additional pricing. Browse the full Hpe Apollo Servers Processors series or explore all Hpe products.
878704-B21 Specifications
- Product Type
- Processors
- Brand
- Intel
- Series
- Intel Core
- Category
- Desktop
- Max Memory Support
- 128 GB
- Memory Type Support
- DDR4 & DDR5
- Generation
- Intel 13th Gen
- Architecture
- Raptor Lake
- ECC Support
- No
- Security Features
- None
- CPU Socket
- LGA 1700
- Instruction Set Extensions
- AVX2
- Virtualization Support
- Intel VT-x
- Cores
- 8
- Threads
- 16
- Base Clock
- 3.6
- Max Boost Clock
- 4.9
- Overclocking Support
- Yes
- L2 Cache
- 8 MB
- L3 Cache
- 24 MB
- TDP
- 125W
- Integrated Graphics
- Intel UHD Graphics 770
- Graphics Base Frequency
- 350MHz
- Graphics Max Dynamic Frequency
- 1350MHz
- Memory Channels
- Dual
- PCIe Version
- PCIe 5.0
- Unlocked
- Yes
- Cooler Included
- No
- Use Case
- Gaming
- Product Name
- 878704-B21
- Height
- N/A
- Width
- N/A
- Depth
- N/A
- Weight
- N/A
878704-B21 Use Case
High-Performance Computing Cluster Interconnect Acceleration
In a research lab deploying HPE XL230k Gen10 Xeon-P 8156 servers for AI simulations, the 878704-B21 Rear Kit provides dual SFP28 ports that integrate seamlessly with 100 GbE or HDR100 InfiniBand fabrics. By enabling ultra-low-latency, high-bandwidth server interconnects, it reduces job completion times by up to 30% and simplifies rack cabling, delivering measurable improvements in cluster throughput and researcher productivity.
Industrial Edge Data Aggregation and Analytics
A manufacturing plant uses HPE XL230k Gen10 nodes at the edge to ingest real-time sensor data across multiple production lines. The 878704-B21 Rear Kit adds four 10 GbE RJ-45 and two SFP+ ports for concurrent fiber- and copper-based connectivity. This modular expansion streamlines network topology, ensures sub-millisecond data capture, and underpins predictive-maintenance analytics, driving a 20% reduction in unplanned downtime.
Rapid Private Cloud Virtualization Node Deployment
A telecommunications provider scales out a private OpenStack cloud with HPE XL230k Gen10 servers. The 878704-B21 Rear Kit delivers versatile rear-I/O options—dual 1 GbE OOB management plus dual 25 GbE uplinks—enabling zero-touch provisioning and network segmentation from day one. The result is 40% faster server commissioning, improved operational consistency, and enhanced network isolation for multi-tenant workloads.
Quality Certifications
To get the detailed certification, please go to the Compliance Center.
Product Comparison Table
 878704-B21 |  830734-L21 |  P01280-B21 |  870571-B21 |  P09136-B21 | |
|---|---|---|---|---|---|
| Product Type | Processors | Processors | Processors | Processors | Processors |
| Brand | Intel | Intel | Intel | Intel | Intel |
| Series | Intel Core | Intel Core | Intel Core | Intel Core | Intel Core |
| Category | Desktop | Desktop | Desktop | Desktop | Desktop |
| Max Memory Support | 128 GB | 128 GB | 128 GB | 128 GB | 128 GB |
| Memory Type Support | DDR4 & DDR5 | DDR5 | DDR5 | DDR5 | DDR5 |
| Generation | Intel 13th Gen | Intel 13th Gen | Intel 14th Gen | Intel 13th Gen | Intel 13th Gen |
| Architecture | Raptor Lake | Raptor Lake | Raptor Lake | Raptor Lake | Raptor Lake |
| ECC Support | No | No | No | No | No |
| Security Features | None | SGX | None | SGX | SGX |
| CPU Socket | LGA 1700 | LGA 1700 | LGA 1700 | LGA 1700 | LGA 1700 |
| Instruction Set Extensions | AVX2 | AVX-512 | AVX2 | AVX2 | AVX2 |
| Virtualization Support | Intel VT-x | Intel VT-x | Intel VT-x | Intel VT-x | Intel VT-x |
| Cores | 8 | 16 | 8 | 10 | 8 |
| Threads | 16 | 32 | 16 | 20 | 16 |
| Base Clock | 3.6 | 3.2 | 3.6 | 3.6 GHz | 3.6 GHz |
| Max Boost Clock | 4.9 | 4.8 | 5.0 | 5.0 GHz | 5.0 GHz |
| Overclocking Support | Yes | Yes | Yes | Yes | Yes |
| L2 Cache | 8 MB | 16 | 8 | 5 MB | 4 MB |
| L3 Cache | 24 MB | 32 | 16 | 20 MB | 24 MB |
| TDP | 125W | 125W | 125W | 125W | 125W |
| Integrated Graphics | Intel UHD Graphics 770 | Intel UHD Graphics 770 | Intel UHD Graphics 770 | Intel UHD Graphics 770 | Intel UHD Graphics 770 |
| Graphics Base Frequency | 350MHz | 300 | 300 | 350 MHz | 350 MHz |
| Graphics Max Dynamic Frequency | 1350MHz | 1200 | 1150 | 1100 MHz | 1150 MHz |
| Memory Channels | Dual | Dual | Dual | Dual | Dual |
| PCIe Version | PCIe 5.0 | PCIe 5.0 | PCIe 5.0 | PCIe 5.0 | PCIe 5.0 |
| Unlocked | Yes | Yes | Yes | Yes | Yes |
| Cooler Included | No | No | No | Yes | Yes |
| Use Case | Gaming | Gaming | Gaming | Gaming | Gaming |
| Product Name | 878704-B21 | 830734-L21 Intel Raptor Lake Processor | Intel Core i7-14700K | 870571-B21 | Intel Core i7-13700K Processor |
| Height | N/A | 0.2 | N/A | 1.2 inches | N/A |
| Width | N/A | 1.5 | N/A | 1.2 inches | N/A |
| Depth | N/A | 1.5 | N/A | 1.2 inches | N/A |
| Weight | N/A | 0.3 | N/A | 0.5 lbs | N/A |
Reviews & Ratings
W
Waqas Ahmed
4
Cooling performance has been excellent.
N
Niko Heikkinen
5
High quality build with accurate fit.
J
James Whitaker
3
No issues across multiple nodes.
R
Rauf Mehmood
4
Enterprise ready reliability.
Questions & Answers
What is the HPE XL230k Gen10 Xeon-P 8156 Rear Kit (SKU 878704-B21)?
The HPE XL230k Gen10 Xeon-P 8156 Rear Kit (878704-B21) is a factory-certified rear I/O assembly providing all necessary connectors, cables and brackets for Intel Xeon Platinum 8156-based ProLiant XL230k Gen10 servers.
Which server models are compatible with SKU 878704-B21?
SKU 878704-B21 is fully compatible only with the HPE ProLiant XL230k Gen10 rack server configured with an Intel Xeon Platinum 8156 processor.
What components are included in the HPE rear kit package?
The package includes a rear I/O bracket, pre-terminated data and power cables, blank filler panels, cable guides and mounting hardware to complete rear chassis assembly.
What are the primary features of the 878704-B21 rear kit?
Key features include OEM-approved rear I/O connectors, optimized airflow design, tool-less mounting, and integrated cable management for reliable system performance.