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Card Edge Connector
Industrial, IT Datacom
For high-speed add-in cards, the connector is easy to overlook—until signal loss, card wobble, or a cracked solder joint shows up in validation. The CONSHARE BR0641X40K1XX is a 64-position PCIe Gen4.0 DIP slot with a molded retention post, 2.5 mm stack height, and black glass-filled LCP housing. It is designed for boards that need the full 16 GT/s lane rate of PCIe 4.0 without moving to a surface-mount assembly process.
A 64-position PCIe slot maps to a four-lane (x4) configuration. That makes the BR0641X40K1XX a practical choice for compact add-in cards that still need serious throughput: NVMe adapters, industrial frame grabbers, network accelerators, edge AI modules, and mini-ITX expansion boards. If your product uses a PCIe x4 link and you want the mechanical forgiveness of through-hole soldering, this slot is the right starting point.
Board teams often pick a DIP-style PCIe slot when:
The assembly line is not yet tuned for fine-pitch SMT connectors.
The add-in card sees repeated insertion cycles during testing or field service.
The board will operate in an environment where vibration or thermal cycling puts stress on the solder joint.
The BR0641X40K1XX addresses those cases directly: the through-hole tails give a stronger mechanical anchor than SMT tabs, and the integrated post carries the retention load so the contacts are not doing that job alone.
Mini-ITX and Thin Mini-ITX motherboards where card height is limited but an x4 NVMe or network card is required.
Industrial vision systems that insert frame-grabber cards once at install and expect them to stay locked for years.
Edge AI appliances that move training data across a PCIe x4 link and cannot afford retraining due to a loose slot.
Test-and-burn-in fixtures where operators swap cards dozens of times per week.
PCIe 4.0 doubles the lane rate to 16 GT/s compared with PCIe 3.0. At that speed, impedance control, ground reference, and contact geometry matter more than they did at 8 GT/s. The CONSHARE contact design uses a split-finger structure with controlled normal force and gold-on-nickel plating in the mating area. That combination keeps contact resistance low and stable across repeated insertions, which protects eye-margin during link training.
A detail that is easy to miss: the 1.57 mm add-in card thickness supported by this slot is the standard PCIe card spec. That means you can use a conventional PCB laminate and standard edge-finger plating without redesigning the card edge.
Do not treat the retention post as an afterthought. The plated through-hole for the post needs the same annular ring and anti-pad attention as the signal pins. If the post hole is too close to a ground plane or a high-speed differential pair, you can create an impedance bump that shows up as insertion-loss ripple at 8 GHz and above. Place the post hole on a separate mechanical keep-out zone and keep it clear of the PCIe lane traces.
The molded retention post on the BR0641X40K1XX is not cosmetic. It absorbs the insertion and retention forces that would otherwise transfer straight into the solder joints. During production testing, field swaps, or bumpy rack installations, that post reduces the risk of cracked barrels and intermittent lanes.
The 2.5 mm DIM A stack height places the add-in card at a common standoff for PCIe expansion cards. It gives enough clearance for standard components on the add-in card underside while keeping the overall envelope compact. For designs that need a taller card gap, the same footprint is available at 3.10 mm (BR0641X41K1XX) and 3.50 mm (BR0641X42K1XX), so you can keep one PCB layout and simply swap the connector height.
The housing is black LCP with 30% glass fill, rated UL 94V-0. That material resists the high soldering temperatures of lead-free wave and selective soldering, and it holds dimensional stability across the -25 °C to +85 °C operating range.
Most PCIe x4 add-in cards carry components on the underside that face the motherboard. A 2.5 mm stack height clears standard MLCCs, small DC-DC inductors, and socketed memory while keeping the overall assembly thin. If your BOM uses taller capacitors or a back-side heatsink, move to the 3.10 mm or 3.50 mm variant. Starting at 2.5 mm and only moving up when the BOM demands it is the most cost-effective way to qualify the platform.
CONSHARE builds these connectors on fully tooled stamping and insert-molding lines. Every lot is checked for contact force, plating thickness, and solderability before it leaves the factory. The phosphor bronze terminals receive a nickel underplating across the entire terminal, with gold in the contact area and tin over the solder tails. That stack gives you a solder-friendly tail and a mating surface that resists fretting corrosion.
Standard lead time is competitive because the BR0641X40K1XX is a running part, not a build-to-order special.
Incoming reel-to-reel terminal inspection verifies plating thickness and tape alignment.
Insert-molding process monitoring checks cavity pressure and temperature to prevent glass-fiber separation in the LCP housing.
100% post-plating contact force sampling catches weak fingers before they reach the customer.
Solderability testing on each lot confirms wetting across the tin-plated tails under lead-free reflow profiles.
CONSHARE supports:
Tray or carton-box packaging
RoHS, GP, and halogen-free material codes
Alternative plating thicknesses on the contact area
Custom labeling and date-code tracking
If you are qualifying multiple heights at once, we can ship mixed-height samples from the same tooling platform so your validation stays consistent.
Part Number | DIM A (Stack Height) | Typical Use Case |
|---|---|---|
BR0641X40K1XX | 2.50 mm | Standard low-profile add-in cards |
BR0641X41K1XX | 3.10 mm | Extra clearance for underside components |
BR0641X42K1XX | 3.50 mm | Tall expansion modules or heatsink clearance |
The last digits of the part number also carry material and packaging codes. R = RoHS, G = GP, H = halogen-free. C = tray, E = carton box. If you are unsure which code matches your compliance program, send your BOM requirements and we will confirm the exact ordering suffix.
Yes. PCIe links train down to the lowest common generation. A Gen4.0 slot accepts Gen3.0 cards and runs at Gen3.0 speeds.
The post is molded into the housing as one piece, so it does not loosen like a separate clip. The connector is rated for 50 insertion/extraction cycles, which covers typical field-service and burn-in needs.
The LCP+GF housing and tin-plated tails are compatible with lead-free wave soldering and selective soldering. We do not recommend hand-soldering all 64 positions because inconsistent barrel fill can affect impedance.
The standard packing options are tray (C) and carton box (E). Tape-and-reel is not standard for this connector style due to the retention post geometry, but custom packaging can be discussed for high-volume orders.
Yes. CONSHARE keeps sample stock for this part. Samples ship within a few working days, and we can include a dimensional report and material certification on request.
