We take cryptocurrency — so the coins you hold can buy real hardware.Pay in crypto, spend it on real hardware. Free insured shipping worldwide over $399. Plain, unbranded boxes, sent from Germany.Free insured shipping over $399. Your rate is locked for 30 minutes once checkout opens.Rate locked 30 minutes. Every item sealed, serial-checked and covered by a 24-month warranty.Sealed, 24-month warranty.

Saved items Sign in

Gender Changers, Couplers and Other Adapters

Gender changers, couplers, PCIe and power adapters, and one-off converters for connections that do not fit the main categories. 1,761 products from $1.24 to $1,009.99. LORDWORLD, eForChina, Vszerda and more.

1,761 products from $1.24

New to this? Which coin should you pay with — what to check, what it costs to pay, and what is never asked for.

1,761 results · page 1 of 30

Sort: Featured

Gender changers join like to like

A gender changer or coupler joins two plugs, or two sockets, of the same type, for example an HDMI female-to-female wall-plate insert, a Toslink optical coupler or a serial changer. It changes nothing about the signal, so both devices must already speak the same standard, and each coupler adds a joint that can weaken a marginal signal, which matters for high-bandwidth video. Check the gender at each end, the exact connector family, for example DB9 versus DB25, and whether your device expects straight or crossed wiring.

PCIe generation, USB and power must all agree

Wherever an adapter sits in a data path, the standard matters. PCIe adapters and extension cables are labeled by generation, and a Gen5 link demands a better-built part than Gen3 or Gen4, so a weak adapter can force the link down to a slower speed or cause errors. USB-C to USB-A or USB 3.0 adapters pass data at the speed of the weakest part. Power adapters list voltage, current and connector size: the plug must fit, the voltage must match the device, and barrel plugs need the same polarity.

Questions about Gender Changers, Couplers and Other Adapters

What is the difference between a coupler and an extension cable?
A coupler is a small barrel that joins two cables or plugs of the same type, adding one connection. An extension cable has a plug on one end and a socket on the other and lengthens a lead in one run without the extra joint, which helps on longer or high-speed signals.
Will a PCIe Gen5 riser or adapter work in a Gen4 slot?
Yes. PCIe is backward compatible, and the link runs at the speed of the slowest part. The reverse is the risk: a part rated only for Gen3 or Gen4 in a Gen5 system can cause errors or force a lower speed.
Can I use a USB-C power adapter from another device?
Often yes, if it supports USB Power Delivery and offers enough wattage for the device. A weaker charger may charge slowly or not at all. For barrel-plug supplies, voltage, plug size and polarity must match exactly.