Mellanox TWSTR-A003 - Twister 3 m Pre-Production Cable
Technical Identity
TWSTR-A003 is the code exactly as printed on the cable. The owner stock record describes it as a Mellanox pre-production cable with the codename Twister 3 m. T.E.S IT-SOLUTIONS found no NVIDIA or Mellanox datasheet or public record for TWSTR-A003, and claims no connector family, medium, speed or protocol. The A003 segment is consistent with a 3 m length, but that is an inference from the code, not a vendor specification.
Engineering-sample, pre-production and unverified-part-number hardware carries no NVIDIA / Mellanox support entitlement, no manufacturer warranty, no vendor firmware entitlement and no RMA path. Sold for lab, spares and evaluation use.
Specifications
Code as printed on unit: TWSTR-A003
Classification: Pre-production cable / unverified part number
Brand / provenance: Mellanox, per owner stock records and the sample-code convention. Not vendor-confirmed
Owner stock description: Mellanox pre-production cable, codename Twister 3 m
Ports / speed / connector: Owner-described as 3 m length. Connector family NOT verified
Protocol (InfiniBand / Ethernet): Not verified. No InfiniBand generation or Ethernet speed grade is claimed
Warranty / support / RMA: None on any count
Quantity / stock / condition: 1 unit(s), EU stock, Refurbished (used, sold as-is)
Engineering Context
The A003 suffix follows the same shape as the A002 segment on the HUR-A002R30N cable held in this stock lot, where A002 reads as 2 m. That consistency is why 3 m is the working reading for TWSTR-A003, and it is a reasonable one. It remains an inference across two undocumented codes rather than a vendor statement, and it says nothing at all about the connector family or the medium. A 3 m run is within passive copper reach at several speed grades, so unlike the 30 m Thunder cable no medium can be inferred from the length here.
What is known
The code TWSTR-A003 is printed on the unit, physically in T.E.S EU stock.
The owner stock record describes it as a Mellanox pre-production cable, codename Twister 3 m.
The A003 code segment is consistent with a 3 m length, matching the A002 / 2 m pattern on HUR-A002R30N in the same lot. This is an inference, not a vendor statement.
It is pre-production, so it carries no warranty, no support entitlement and no RMA path.
What is not yet confirmed
The connector family at each end. OSFP, QSFP-DD, QSFP112, QSFP56, QSFP28 and QSFP+ are all unconfirmed.
The medium - passive copper, active copper or optical. None is claimed.
The supported speed grade and protocol.
That the 3 m length is correct. Measure or request a photograph before relying on it.
Request Label Photos
T.E.S IT-SOLUTIONS photographs the regulatory label, serial number and board markings on this exact unit before dispatch. Request photos before you commit. Pricing is subject to confirmation of the exact unit.
Use Cases
Laboratory and bench interconnect where the cable can be tested before use.
Intra-rack test topologies where an unsupported cable is acceptable.
Hardware collection and engineering-history material.
What This Is NOT
NOT a verified connector type. The cage family on TWSTR-A003 is unconfirmed. OSFP, QSFP-DD, QSFP112, QSFP56, QSFP28 and QSFP+ are not interchangeable and none is claimed.
NOT confirmed as passive, active copper or optical. No DAC, ACC or AOC classification is verified for TWSTR-A003.
NOT rated to any stated speed. No Gb/s figure, InfiniBand generation or Ethernet speed grade is claimed.
NOT a production cable. TWSTR-A003 is pre-production and carries no warranty, no vendor support and no RMA path.
NOT guaranteed to present a vendor EEPROM profile that your switch will accept.
Compatibility & Hard Constraints
No compatibility list is published. Without a verified connector family and speed grade, T.E.S will not name compatible switches or adapters for TWSTR-A003.
Connector-family caution: OSFP, QSFP-DD, QSFP112, QSFP56, QSFP28, QSFP+ and SFP cages are mechanically and electrically incompatible. Confirm the cage from photographs before ordering.
Generation caution: SDR, DDR, QDR, FDR, EDR, HDR and NDR are not interchangeable, nor Ethernet speed grades with InfiniBand generations.
EEPROM caution: a pre-production cable may carry an engineering or absent vendor profile that a production switch rejects. Verify in switch CLI before relying on it.
Measure before relying on it: the 3 m length is read from the codename and owner record, not from a datasheet.
Frequently Asked Questions (FAQ)
Q. What exactly am I buying when I order TWSTR-A003?
One physical unit marked TWSTR-A003, from a lot of 1 held in the EU. It is a Mellanox pre-production cable described as Twister 3 m, with connector family and medium unverified. Hardware only - no documented model, specification sheet, firmware, licence, warranty or support entitlement.
Q. Is TWSTR-A003 a production unit?
No. TWSTR-A003 is a pre-production cable and was never released as a documented, supported product under this code. It carries no NVIDIA or Mellanox support entitlement, no warranty and no RMA path.
Q. Will you confirm the model before shipping TWSTR-A003?
T.E.S photographs what is printed on the unit - the TWSTR-A003 code, regulatory label, serial number and board markings - before dispatch. No production-model equivalence is asserted. Any further part number on the label is passed to you unedited.
Q. Is TWSTR-A003 tested?
TWSTR-A003 receives visual inspection, connector inspection and label photography. It has not been link-tested at a rated speed, because no rated speed is verified for this code. Where a rig is available T.E.S will attempt a link check on request and report the result honestly, including a negative result.
Q. Can I get photos of the regulatory label on TWSTR-A003?
Yes. Request label photographs before ordering and T.E.S will photograph the label, serial number and board markings on the actual TWSTR-A003 unit that would ship. Pricing is subject to confirmation of the exact unit.
Why T.E.S IT-SOLUTIONS
Label photography, a written statement of what is and is not verified, cosmetic inspection, anti-static packaging, and global B2B shipping from EU stock.