The HPE ProLiant DL365 Gen11 is a 1U two-socket rack server available in 8SFF, EDSFF, and GPU configure-to-order (CTO) base configurations. This reference covers base chassis options, external bezels, the intrusion cable, and the optional System Insight Display module. Drive backplanes, risers, and optical-drive hardware are discussed where they affect chassis configuration but remain in their respective hardware categories.
The three CTO chassis SKUs differ in front storage layout and GPU accommodation.
The 8SFF CTO server includes a drive cage but does not include its backplane.
Physical bezel and intrusion accessories are separate hardware options; the optional display is limited to one module.
The standard 8SFF front view identifies eight drive bays, a front USB port, an iLO service port, power and health indicators, and an optional media bay. The media position can accommodate an optional two-drive cage or supported optical-drive arrangement, subject to the configuration. A 10SFF front configuration is possible with the appropriate components, but maximum drive count also depends on the selected processor and cooling configuration.

The factory CTO selections below are base servers rather than standalone replacement chassis assemblies. Processor kits and fans are chosen separately. The GPU CTO listing contains an internal inconsistency about its included drive arrangement, so its final front backplane choice should be verified against the GPU-specific configuration rules.
| Part Number | Product Name | Documented Base Arrangement | Configuration Note |
| P53933-B21 | HPE ProLiant DL365 Gen11 8SFF Configure-to-order Server | 8 SFF drive cage; backplane not included | Optional 2 SFF and media/optical-bay choices |
| P53934-B21 | HPE ProLiant DL365 Gen11 EDSFF Configure-to-order Server | 20 EDSFF drive bays listed | Two processors and performance cooling required |
| P53935-B21 | HPE ProLiant DL365 Gen11 GPU Configure-to-order Server | GPU-focused front chassis; CTO entry lists 20 EDSFF | GPU-specific backplane selection required; see discrepancy below |
For 8SFF CTO configurations, the base enclosure includes the eight-bay drive cage but does not include the backplane. HPE lists optional 8SFF and 2SFF SAS/SATA/NVMe configurations, an optional universal media bay, and no available rear drive cages in the factory CTO configuration table. Field upgrades may differ from the listed factory CTO arrangements. Compatible drive and backplane combinations must be checked in the Drive Cages & Storage Expansion section rather than inferred from the chassis SKU.
| Position or Component | Factory CTO Availability | Important Detail |
| Included front cage | 8 SFF | Backplane not included in base CTO |
| Additional 8SFF SAS/SATA/NVMe | Up to one optional | Requires compatible backplane and storage configuration |
| Additional 2SFF SAS/SATA/NVMe | Up to one optional | Can enable up to 10 front SFF bays in applicable configurations |
| Universal Media Bay | Optional | Shares front-chassis configuration space with selected options |
| Optical disk drive | Optional | Restricted to compatible 8SFF CTO configuration |
| Rear drive cage | Not available | The restriction is stated for the listed factory CTO configurations |
The EDSFF CTO base is listed with 20 EDSFF bays and requires two processors, performance heatsinks or direct liquid cooling, and performance fans. For the GPU CTO, the general CTO table says the included cage is 20 EDSFF, but the GPU-specific backplane section requires selection of either a 4SFF U.3 NVMe or an 8EDSFF NVMe factory backplane. These descriptions should not be combined into an unconditional GPU storage-capacity claim.
| Chassis Family | Related Hardware | Restriction |
| 8SFF CTO | 8SFF and optional 2SFF U.3 tri-mode backplane arrangements | Drive format and cabling depend on backplane and controller |
| EDSFF CTO | EDSFF drive bay configuration | Two CPUs and performance cooling required |
| GPU CTO | P63212-B21 4SFF U.3 NVMe FIO backplane | GPU CTO only; NVMe only; directly attached to motherboard; excludes internal controllers |
| GPU CTO | P63215-B21 8EDSFF NVMe FIO backplane | GPU CTO only; directly attached to motherboard; excludes internal controllers |
HPE lists a common front bezel, bezel lock kit, and chassis intrusion cable as additional security hardware. The intrusion cable is also identified as a required selection for Trusted Supply Chain configurations. A bezel lock is a physical access-control accessory; it should not be confused with the embedded TPM or a software license.
| Part Number | Product Name | Role |
| 875519-B21 | HPE Bezel Lock Kit | Physical bezel locking accessory |
| P48922-B21 | HPE ProLiant DL3XX Gen11 Intrusion Cable Kit | Chassis intrusion-detection hardware |
| P50450-B21 | HPE ProLiant DL3X5 Gen11 1U Common Bezel Kit | Front bezel accessory |
The QuickSpecs explicitly requires the intrusion cable kit P48922-B21 when the Trusted Supply Chain configuration is selected. It separately lists the Trusted Supply Chain configuration and an electronic license; those are not physical bezel or chassis parts and are therefore excluded from this page's primary hardware part-number export. The document does not establish that every server configuration requires the intrusion cable.
The optional System Insight Display module provides a chassis-related front-panel service option. HPE specifies a maximum of one module per system. The standard chassis front panel already includes power, status, UID, NIC, USB, and iLO service-port features as shown in the front diagram.
| Part Number | Product Name | Maximum Supported Quantity |
| P56924-B21 | HPE ProLiant DL365 Gen11 SFF System Insight Display Module Kit | 1 |
The internal layout identifies the two processor positions, 24 DIMM slots across both CPUs, primary and optional secondary riser positions, fan cage, two OCP 3.0 positions, and redundant hot-plug power supply locations. These component positions are relevant when identifying replacement hardware and confirming upgrade clearances.

The rear view identifies PCIe 5.0 expansion slots, OCP 3.0 positions, the dedicated iLO management port, optional serial connectivity, rear VGA, USB, and the hot-plug power supply positions. Availability of the second riser and individual slots depends on the build.

The following parts affect the front enclosure or chassis configuration but primarily belong on other category pages. They are shown here to clarify dependencies, not as additional bezel and chassis product SKUs.
| Part Number | Product Name | Primary Category |
| P56899-B21 | HPE ProLiant DL365 Gen11 2SFF Display Port ODD Blank Kit | Optical Drives & Media |
| P63212-B21 | HPE ProLiant DL365 Gen11 4SFF Tri-Mode U.3 x4 BC FIO Backplane Kit | Drive Cages & Storage Expansion |
| P63215-B21 | HPE ProLiant DL365 Gen11 8EDSFF NVMe FIO Backplane Kit | Drive Cages & Storage Expansion |
| P58763-B21 | HPE ProLiant DL365 Gen11 NVMe FIO Trigger Kit | Drive Cages & Storage Expansion |
| P59431-B21 | HPE ProLiant DL36X Gen11 Rear Serial Port Cable Kit | Cables |
Base CTO inventory: the factory CTO configurations do not include processor kits or fans as standard selections. The 8SFF CTO configuration also does not include its drive backplane.
Thermal constraints: EDSFF and GPU CTO configurations require performance cooling. High-TDP processors can restrict the maximum installed drive count; verify processor, cooling, and drive selections together.
Factory versus field: the chassis drive-bay table describes factory CTO selections and cautions that field upgrades may differ.
Physical protection: the optional intrusion cable and bezel lock perform different functions and should not be treated as interchangeable.
| Question | What to Confirm |
| Which CTO base is installed? | 8SFF, EDSFF or GPU CTO configuration |
| Is the drive backplane present? | 8SFF CTO ships with cage but without its backplane |
| Is a second processor required? | EDSFF CTO requires two processors; 24 populated DIMM slots require two CPUs |
| Are the thermal options sufficient? | Select fans, heatsinks and optional DLC to match CPU, storage and GPU conditions |
| Is the display required? | Optional P56924-B21; maximum one |
| Is Trusted Supply Chain configured? | Intrusion Cable Kit P48922-B21 required for that configuration |
| Does the GPU chassis match the selected backplane? | Verify GPU-specific FIO backplane choice against conflicting CTO description |
The GPU CTO base configuration is described with an included 20 EDSFF drive cage, while its separate GPU-specific storage selection calls for either a 4SFF U.3 NVMe or 8EDSFF NVMe FIO backplane. The QuickSpecs does not reconcile these statements. Confirm the exact supported front storage arrangement using the appropriate HPE configuration tool before purchasing a GPU CTO base or front storage conversion hardware.
The document lists 8SFF, EDSFF, and GPU configure-to-order base servers. Their front drive arrangements and thermal requirements differ.
No. It includes the 8SFF drive cage, but the backplane is not included in the base CTO description.
The QuickSpecs describes an optional 2SFF expansion for the 8SFF chassis. Actual supported drive quantity depends on processor, cooling, controller, and backplane configuration.
The listed common bezel is P50450-B21, HPE ProLiant DL3X5 Gen11 1U Common Bezel Kit.
The QuickSpecs specifies P48922-B21 as required with the Trusted Supply Chain configuration. It does not say the kit is mandatory in all configurations.
P56924-B21 is the HPE ProLiant DL365 Gen11 SFF System Insight Display Module Kit. The document permits a maximum of one.
No. The GPU-specific section lists P63212-B21 or P63215-B21 as required alternatives and describes restrictions on controllers and drive types. The general CTO storage description should be verified.