Dell QSFP-SL4-200G Compatible 200G QSFP56 SL4 Transceiver Module

This HT-manufactured module is a compatible alternative for Dell equipment that specifies QSFP-SL4-200G. It provides 200GBASE-SL4 transmission over multimode fiber, using four 50G PAM4 optical lanes at 850nm and an MPO-12/UPC interface for links up to 30m.

OEM Part Number: QSFP-SL4-200GHT Part Number: QSFP-SL4-200G

Product Highlights

• Dell QSFP-SL4-200G compatible identification
• 200G QSFP56 with 4x50G-PAM4 modulation
• 850nm VCSEL transmitter and PIN receiver
• Up to 30m over multimode fiber
• MPO-12/UPC optical connection
• Digital diagnostic monitoring supported
• Commercial operating range: 0 to 70°C

QSFP-SL4-200G is intended for short-reach 200G connections inside data-center rows, equipment racks and adjacent switching areas. Typical uses include Dell switch-to-switch links and connections to servers or storage platforms with compatible 200G QSFP56 ports. The parallel multimode interface is useful where an MPO cabling plant is already available and the required distance stays within the 30m optical specification.

Both ends of the link must support the same SL4 optical interface and 200G lane configuration. A QSFP56 socket alone does not establish compatibility: SR4, FR4, DR4 and SL4 modules have different optical requirements. Check the remote transceiver, fiber type and port configuration before installation.

This SL4 version is rated for 30m, while the related Dell Q56-200G-SR4 page covers a 100m SR4 requirement. Do not substitute one for the other solely because both use QSFP56 and multimode fiber. Select according to the equipment part number, required optical standard and actual channel loss.

Use a clean MPO-12/UPC multimode connection with the correct polarity through the channel. Inspect the connector end faces before mating, avoid excessive bend or pulling force, and account for patch panels and cassette loss. The stated power budget is 3.5dB; an unusually dirty or lossy channel can prevent a link from coming up even within the nominal distance.

The EEPROM is prepared for hosts that recognize the Dell QSFP-SL4-200G reference. Production checks include module identification, transmit and receive optical levels, diagnostic readouts and link establishment. Customers can provide the Dell switch or adapter model, hardware revision and network operating-system release so that the intended compatibility profile can be checked before dispatch.

After installation, confirm that the host detects the expected data rate and that DOM values are within the published ranges. If the port does not link, verify FEC and lane settings on both ends, then inspect polarity and connector cleanliness before replacing the module.

Quote HT part number QSFP-SL4-200G and Dell OEM reference QSFP-SL4-200G, together with quantity and destination. Include the host model when compatibility confirmation is required. Factory labels are standard; neutral labels, customer packaging and project-specific coding can be discussed for volume orders. For a mixed-brand installation, order each side with its own brand-specific identification rather than assuming one coded version fits every host.

Is this an original Dell module? No. It is an HT-manufactured compatible alternative for equipment specifying QSFP-SL4-200G, not an original Dell-branded product.

What fiber and connector are needed? Use multimode fiber with an MPO-12/UPC interface and verify channel polarity. The maximum stated reach is 30m, subject to fiber quality and link loss.

Can this module connect to a 200G SR4 or DR4 module? Do not assume cross-standard operation. The optical standard, wavelength plan and lane configuration must match at both ends.

Can HT check a particular Dell platform? Yes. Provide the equipment model and software release with the inquiry for a compatibility review.

Each unit receives visual inspection, optical performance checks, compatibility verification and diagnostic testing before packing. Modules are supplied in protective anti-static packaging or blister trays and cartoned for transport. Project packing lists and custom labels are available on request.

Standard products normally ship within one to three working days. Worldwide courier, air freight and sea freight options are available; shipments can also use the customer's courier account or appointed forwarder.