HPE Aruba JL308A Compatible 40G QSFP+ SR Transceiver Module

Built for hosts recognizing JL308A, this HT-manufactured QSFP+ module delivers 40G transmission at 850/880/910/940nm. Its rated reach is 300m on OM3 / 400m on OM4 / 500m on OM5, with Duplex LC/UPC as the physical interface. The specifications and engineering guidance below support structured fiber installations preserve a documented and serviceable optical channel, while keeping HT manufacture separate from the OEM cross-reference.
OEM Part Number: JL308AHT Part Number: QSFP-BIDI-40G
Product Highlights
- Compatible alternative to HPE Aruba JL308A
- 40G connectivity at 41.2Gbps (4x 10.3125Gbps)
- Optical wavelength: 850/880/910/940nm
- Specified reach: 300m on OM3 / 400m on OM4 / 500m on OM5
- Duplex LC/UPC / MMF interface
- Digital diagnostic monitoring: Supported
- Operating temperature: 0 to 70°C (32 to 158°F)
Specifications
| HPE Aruba Compatible | JL308A |
|---|---|
| Manufacturer | HT |
| HT Part Number | QSFP-BIDI-40G |
| Form Factor | QSFP+ |
| Max. Data Rate | 41.2Gbps (4x 10.3125Gbps) |
| Wavelength | 850/880/910/940nm |
| Max. Transmission Distance | 300m@OM3/400m@OM4/500m@OM5 |
| Connector | Duplex LC/UPC |
| Cable Type | MMF |
| Transmitter Type | VCSEL |
| Receiver Type | PIN |
| TX Power | -7.5~3dBm |
| Receiver Sensitivity | <-9.1dBm |
| Power Budget | 1.6dB |
| Receiver Overload | 3.0dBm |
| Max. Power Consumption | ≤3.5W |
| Extinction Ratio | >2.0dB |
| DDM/DOM | Supported |
| Operating Temperature | 0 to 70°C (32 to 158°F) |
| CDR (Clock and Data Recovery) | TX & RX Built-in CDR |
| Packaging Technology | COB (Chip on Board) Packaging |
| Modulation Format | 4x10G-NRZ |
| Bit Error Ratio (BER) | 1E-12 |
| MTBF | 10,500,000 Hours |
| EMC (Electro Magnetic Compatibility) | Supported |
| Protocols | QSFP+ MSA, IEEE 802.3ba XLPPI electrical interface Compliant |
Applications and Optical Link Design
Typical deployments include switch-to-switch, switch-to-server and aggregation links inside a data hall or between adjacent equipment rooms. The Duplex LC/UPC interface connects to the specified multimode cabling, and the stated reach depends on fiber grade and link loss. Keep this interface on the matching multimode optical standard rather than connecting it directly to a single-mode wavelength or reach variant.
Before deployment, check the host port type, supported data rate and firmware requirements. The 40G interface configuration must match the remote equipment; sharing a QSFP+ housing alone does not make two transceiver types interoperable.
For this multimode module, confirm fiber grade, modal bandwidth and total loss before commissioning. The 300m on OM3 / 400m on OM4 / 500m on OM5 figure applies only under suitable cabling conditions. Inspect every Duplex LC/UPC mating point and match the remote optical standard.
HPE Aruba Compatibility and Factory Testing
Compatibility testing for JL308A combines identification with a live link and available transmit, receive and alarm information. Connector condition is inspected separately. Equipment model, hardware revision and software release can be reviewed before dispatch where platform behavior is uncertain.
Optical Acceptance, Diagnostics and Handling
For this model, the specified transmit-power range is -7.5~3dBm; receiver sensitivity is <-9.1dBm; the stated optical power budget is 1.6dB. Digital diagnostics make later maintenance easier when baseline values are captured at installation. Save the initial readings with the port and OEM reference, then investigate meaningful changes rather than reacting to a single transient value. Diagnostic support depends on the host as well as the module, so unavailable fields should be confirmed with the platform documentation. Diagnostic monitoring is listed as Supported. Before every insertion, keep dust caps in place until the patch lead is ready, avoid touching the optical end face and use an appropriate inspection and cleaning procedure. Do not look into an active optical interface.
Structured Fiber Pathways and Serviceability
Treat the transceiver as part of the complete channel. Follow the intended patch-panel route, maintain bend control and leave service access around the port. Confirm connector polish and fiber type at every mated pair; a documented service allowance is preferable to excess slack concealed inside a rack. For this model, the principal parameters are data rate 41.2Gbps (4x 10.3125Gbps), wavelength 850/880/910/940nm, rated reach 300m on OM3 / 400m on OM4 / 500m on OM5.
Ordering Information
When ordering, specify JL308A, QSFP-BIDI-40G, quantity and intended host platform. Project labels can repeat these details for receiving and asset records. Neutral labels, customer packaging and project-specific compatibility review are available on request.
Shipping and Lead Time
Standard configurations normally ship within one to three working days, with production lead times confirmed for larger quantities. International courier, air freight and sea freight are available; customer courier accounts and nominated forwarders are accepted.
Quality Assurance and Packaging
Before packing, the module receives interface inspection, identification and link checks. Protective packaging avoids pressure on the connector and latch. Customer references, rack groups and project packing lists can be added for volume orders.
Frequently Asked Questions
Is this an original HPE Aruba transceiver?
No. It is an HT-manufactured compatible alternative for equipment that specifies JL308A, not an original HPE Aruba-branded module.
Which fiber and connector are required?
Use Duplex LC/UPC with MMF. The specified maximum reach is 300m on OM3 / 400m on OM4 / 500m on OM5, subject to fiber quality and total link loss.
Can it be mixed with another wavelength or reach version?
Only when the two ends share the same optical standard, wavelength plan and supported data rate. Check the exact part numbers and link budget rather than relying only on the module form factor.
10/100BASE-T SFP