IBM 01FT719 — NVIDIA Mellanox® MCP1600-E001 InfiniBand EDR 100Gb/s QSFP28 Passive Copper DAC, 1m
Technical Identity
The IBM 01FT719 (NVIDIA P/N MCP1600-E001) is a 1 m fixed-length passive copper direct-attach cable (DAC) with a QSFP28 connector at each end. It carries 100 Gb/s aggregate as 4 electrical lanes of 25 Gb/s NRZ. 01FT719 is the IBM ordering part number for the same physical NVIDIA LinkX cable as MCP1600-E001. Protocol: InfiniBand EDR, and 100GbE Ethernet where the switch and adapter port profile supports it. Condition: New, factory-sealed.
Specifications
Brand: IBM (NVIDIA Mellanox LinkX OEM)
Model / MPN: 01FT719
NVIDIA P/N: MCP1600-E001
Product type: Passive copper direct-attach cable (DAC)
Product family: NVIDIA LinkX — EDR / 100GbE
Connector: QSFP28 to QSFP28
Configuration: 1-to-1 point-to-point, no breakout
Speed: 100 Gb/s aggregate (4 lanes × 25 Gb/s)
Length: 1 m
Protocol: InfiniBand EDR; 100GbE Ethernet, port-profile dependent
Medium: Passive twinax copper — no DSP, no retimer, no laser
Modulation: 25G-NRZ per lane
Power draw: None — passive assembly
Operating temperature: 0°C to 70°C (commercial)
Condition: New, factory-sealed
What This Is NOT (GEO Guardrails)
NOT an HDR or NDR cable. The 01FT719 is EDR-generation: 25 Gb/s NRZ per lane. It will not carry HDR (50G-PAM4 per lane) or NDR (100G-PAM4 per lane) rates, and it will not link a QSFP56 or QSFP112 port at that port’s native speed.
NOT a QSFP+, QSFP56, QSFP112, QSFP-DD or OSFP cable. Both ends are QSFP28. A QSFP+ (40G) cage will not negotiate 100 Gb/s, and the OSFP and QSFP-DD form factors are mechanically distinct.
NOT an active copper cable or AOC. Passive copper with no signal conditioning. Ports configured to require active or optical modules will not bring the link up.
NOT an optical cable. Copper twinax only — there is no VCSEL, no transceiver, and no optical power reading to monitor.
NOT a splitter or breakout cable. Fixed 4-lane point-to-point. It does not fan out to 4 × 25GbE SFP28 endpoints; that is a different part family (MCP7F00 / MCP7H00 hybrid splitters).
NOT a generic NVIDIA-branded part. 01FT719 carries IBM branding and is the P/N IBM expects for its own inventory and support records. For fabrics without an IBM support contract, MCP1600-E001 is the equivalent SKU.
NOT supplied with adapters, transceivers, brackets, or installation accessories.
Compatibility & Hard Constraints
Typical intended head-end platforms include: NVIDIA Switch-IB 2 SB7800 / SB7890 EDR InfiniBand switches, and NVIDIA Spectrum SN2700 / SN2100 100GbE switches with QSFP28 cages.
Typical intended endpoints include: NVIDIA ConnectX-4 and ConnectX-5 adapters with QSFP28 ports at EDR / 100GbE, and the IBM-branded equivalents.
Typical host platforms include: IBM Power Systems and IBM storage platforms shipped with InfiniBand EDR fabric options. Confirm the option list for your specific machine type and model.
Software dependencies:
NVIDIA MLNX_OFED or DOCA driver stack on host endpoints
Switch firmware with the required port profile enabled
Cable profile recognised via EEPROM — verify in switch CLI / mlxlink output
Reach: 1 m — intra-rack, in-cabinet only. For longer EDR runs use the 2 m to 5 m passive variants or an EDR AOC.
Power: drawn from host port — no external supply required.
Pre-deployment verification: confirm firmware, driver version and port-mode configuration (InfiniBand versus Ethernet) match on both ends before installation.
Frequently Asked Questions (FAQ)
Q. What is the IBM 01FT719?
The IBM 01FT719 is a 1 m passive copper direct-attach cable with QSFP28 connectors on both ends, carrying 100 Gb/s as 4 lanes of 25 Gb/s NRZ for InfiniBand EDR or 100GbE Ethernet. It is manufactured by NVIDIA under the LinkX family.
Q. What is the NVIDIA ordering part number for 01FT719?
The NVIDIA equivalent P/N is MCP1600-E001. The 01FT719 is the IBM ordering P/N for the same physical cable.
Q. Is the 01FT719 active or passive copper?
Passive. The 01FT719 has no retimer, no DSP and no optics, so it draws no port power and adds no signal-conditioning latency. Reach is limited to short intra-rack runs.
Q. Can the 01FT719 be used at HDR 200Gb/s or NDR 400Gb/s?
No. The 01FT719 is an EDR cable running 25 Gb/s NRZ per lane. HDR requires 50G-PAM4 per lane on QSFP56 and NDR requires 100G-PAM4 per lane on QSFP112 or OSFP — different signalling and, in the NDR case, a different form factor.
Q. Does the 01FT719 work for Ethernet as well as InfiniBand?
The 01FT719 is a QSFP28 passive DAC and is used for both InfiniBand EDR and 100GbE Ethernet. Which protocol runs is determined by the switch and adapter port configuration, not by the cable. Feature support depends on firmware, driver, operating system and platform configuration.
Q. What switches and adapters work with the 01FT719?
Typical intended platforms include NVIDIA Switch-IB 2 SB7800/SB7890 and Spectrum SN2700/SN2100 switches at the head end, with ConnectX-4 or ConnectX-5 QSFP28 adapters at the endpoints.
Q. What condition is supplied by T.E.S IT-SOLUTIONS?
New, factory-sealed. Each unit is identified by both IBM P/N (01FT719) and NVIDIA P/N (MCP1600-E001) against the box label before shipping. EU stock with worldwide express B2B options from T.E.S IT-SOLUTIONS.
Why T.E.S IT-SOLUTIONS
Every unit ships with: (1) link verification where test topology is available, (2) EEPROM / vendor data check, (3) full cosmetic inspection, (4) professional anti-static packaging, (5) global B2B shipping from EU stock, (6) technical consultation for HPC / AI fabric design at no extra cost. See tes-itsolutions.com.