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Molex 879781051 — Pin Headers, Sockets & Housings

Molex 879781051 DIMM Connector – 240-Pin DDR2 SDRAM

MPN879781051
Active

Molex 87978 series, 240-position DDR2 SDRAM DIMM socket, through hole, gold-plated contacts with 30.0µin thickness, board locks and latches, card thickness 0.050" (1.27mm), black housing, box packaging.

$4.8000Ref. price · indicative, final on quote
Sourced new & surplus through independent channelsAuthenticity-screened · ESD-safe packingListing updated Aug 2026

Specifications

879781051 specifications
ParameterValue
Series87978
Memory typeDDR2 SDRAM
MountingThrough Hole
Mounting featureNormal, Standard - Top
Connector typeDIMM
ColorBlack
StandardsMO-237
PackageBox
FeaturesBoard Lock, Latches
Card thickness0.050\" (1.27mm)
Contact finishGold
Positions240
Contact finish thickness30.0µin (0.76µm)

Product details

240-Pin DDR2 DIMM Socket – Fit and Key Specs

The 879781051: Gold contacts at 30.0µin thickness handle repeated memory swaps without fretting corrosion. Compliant with MO-237 standard for DDR2 DIMM sockets, ensuring dimensional consistency across motherboard layouts.

What Crosses into the Harness You've Got

This is a board-level DIMM socket, not a cable connector – there's no harness to re-pin. If you're replacing a failed DDR2 socket on a motherboard, the through-hole footprint and board locks are the critical dimensions to match. The 240-position count is standard for DDR2, but the latch style (standard or low-profile) varies by manufacturer – verify the latch clears your chassis. The black housing colour is cosmetic but helps with visual inspection on the assembly line.

Frequently asked questions

Is Molex 879781051 for DDR2 SDRAM only?

Yes, this connector is designed for DDR2 SDRAM modules. The 0.050" (1.27mm) card thickness is specific to DDR2 – DDR3 modules use a 1.0mm PCB and will not seat correctly.

Does 879781051 have board lock and latches?

Yes, the connector includes both board locks for solder-through-hole retention and latches to secure the DIMM module in place.