You have searched for Ddr3 Sdram products which include top computer memory parts such as part number 619488-B21, 4GBKITLT1066APL, 593915-B21-AM, 41U5252-AM, 44T1594, and many others. Being an AS9120B, ISO 9001:2015, and FAA AC 00-56B accredited member of the Aviation Suppliers Association (ASA), we uphold strict quality-testing protocols for our parts, ensuring that our products always fulfill our customers’ high expectations. Upon selecting the item of your choice, you will be immediately redirected to its applicable RFQ form where you can convey your desired part quantity, estimated delivery date, target pricing, and more. Within 15 minutes of receiving your request, we will reply with a competitive quote for your comparisons that is fit to your specific needs. For more information about the parts or services we offer, you may contact us at any time as our dedicated team is available around-the-clock to answer customer inquiries and requests.
Part No | Manufacturer | Description | QTY | RFQ |
---|---|---|---|---|
619488-B21 | hp | memory - 4 gb - dimm 240-pin - ddr3 - 1333 mhz / pc3-10600 - cl9 - unbuffered - ecc | Avl | RFQ |
4GBKITLT1066APL | centon electronics | memory - 4 gb : 2 x 2 gb - so dimm 204-pin - ddr3 - 1066 mhz / pc3-8500 - unbuffered - non-ecc - for apple macbook; macbook pro | Avl | RFQ |
593915-B21-AM | acp ep | memory upgrades - memory - 16 gb - dimm 240-pin - ddr3 - 1066 mhz / pc3-8500 - registered - ecc | Avl | RFQ |
41U5252-AM | acp ep | memory - 2 gb - dimm 240-pin - ddr3 - 1066 mhz / pc3-8500 - 1.5 v - unbuffered - ecc - for lenovo thinkstation s10 | Avl | RFQ |
44T1594 | ibm | memory - 2 gb - dimm 240-pin very low profile - ddr3 - 1333 mhz / pc3-10600 - cl9 - 1.5 v - registered - ecc - for bladecenter hs22 7870; hs22v 7871 | Avl | RFQ |
44T1487-AM | acp ep | memory - 2 gb - dimm 240-pin very low profile - ddr3 - 1333 mhz / pc3-10600 - registered - ecc - for ibm bladecenter hs22 7870; hs22v 7871 | Avl | RFQ |
500658-12G-AM | acp ep | memory upgrades - memory - 12 gb : 3 x 4 gb - dimm 240-pin - ddr3 - 1333 mhz / pc3-10600 - cl9 - registered - ecc | Avl | RFQ |
41U5252-PE | edge memory | memory - 2 gb - dimm 240-pin - ddr3 - 1066 mhz / pc3-8500 - 1.5 v - unbuffered - ecc - for lenovo thinkstation s10 | Avl | RFQ |
55Y3706-AA | acp ep | memory - 1 gb - so dimm 204-pin - ddr3 - 1066 mhz / pc3-8500 - unbuffered - non-ecc - for lenovo thinkcentre m58; m90; thinkpad edge 14; 15; thinkpad t410; w70x; x20x; x20x tablet | Avl | RFQ |
500662-64GB-PE | edge memory | memory - 64 gb : 8 x 8 gb - dimm 240-pin - ddr3 - 1333 mhz / pc3-10600 - registered - ecc | Avl | RFQ |
0A89461-AMK | acp ep | memory upgrades - memory - 8 gb - dimm 240-pin - ddr3 - 1333 mhz / pc3-10600 - unbuffered - ecc - for lenovo thinkserver ts130; ts430 | Avl | RFQ |
43R1988-PE | edge memory | memory - 2 gb - so dimm 204-pin - ddr3 - 1066 mhz / pc3-8500 - 1.5 v - unbuffered - non-ecc - for lenovo thinkcentre m58; thinkpad r400; r500; t500; w500; w700; x200; x200 tablet; x301 | Avl | RFQ |
49Y1429 | ibm | memory - 2 gb - dimm 240-pin very low profile - ddr3 - 1333 mhz / pc3-10600 - cl9 - 1.5 v - registered - ecc - for bladecenter hs22 7809, 7870; hs22v 7871 | Avl | RFQ |
43R2036-AX | axiom memory solutions | memory - 4 gb - dimm 240-pin - ddr3 - 1066 mhz / pc3-8500 - registered - ecc - for lenovo thinkserver rd220 3729, 3779, 3797, 3798; thinkstation d20 4155, 4158 | Avl | RFQ |
57Y4138-AM | acp ep | memory upgrades - memory - 4 gb - dimm 240-pin - ddr3 - 1333 mhz / pc3-10600 - 1.5 v - unbuffered - ecc - for lenovo thinkstation c20; c20x; d20; e20; e30; s20 | Avl | RFQ |
55Y3711-AA | acp ep | memory upgrades - memory - 4 gb - so dimm 204-pin - ddr3 - 1333 mhz / pc3-10600 - unbuffered - non-ecc - for thinkcentre edge 71; thinkcentre m71; m91 (so dimm); thinkpad edge e12x; e32x; e42x | Avl | RFQ |
49Y1407-PE | edge memory | memory - 4 gb - dimm 240-pin - ddr3 - 1333 mhz / pc3-10600 - registered - ecc - for ibm system x idataplex dx360 m3; system x3400 m3; x3630 m4; x36xx m3; x3755 m3; x3950 x5 | Avl | RFQ |
46C7449-AM | acp ep | memory upgrades - memory - 8 gb - dimm 240-pin low profile - ddr3 - 1333 mhz / pc3-10600 - registered - ecc - for ibm system x idataplex dx360 m2; dx360 m3; system x3400 m2; x3550 m3; x35xx m2; x3650 m3 | Avl | RFQ |
44T1579-AM | acp ep | memory - 8 gb - dimm 240-pin very low profile - ddr3 - 1066 mhz / pc3-8500 - registered - ecc - for ibm bladecenter hs22 7870; hs22v 7871 | Avl | RFQ |
500662-B21-AM | acp ep | memory upgrades - memory - 8 gb : 2 x 4 gb - dimm 240-pin - ddr3 - 1333 mhz / pc3-10600 - cl9 - registered - ecc | Avl | RFQ |
44T1482-AM | acp ep | memory - 2 gb - dimm 240-pin low profile - ddr3 - 1333 mhz / pc3-10600 - cl9 - registered - ecc chipkill - for ibm system x idataplex dx360 m3; system x3400 m2; x3500 m2; x3550 m2; x3650 m2 | Avl | RFQ |
44T1568-AXA | axiom memory solutions | ibm supported - memory - 1 gb - dimm 240-pin - ddr3 - 1333 mhz / pc3-10600 - unbuffered - ecc - for ibm system x3100 m4; x3200 m3; x3250 m3; x3250 m4; x3400 m2; x3400 m3; x3500 m2; x3500 m3 | Avl | RFQ |
43R1988-AA | acp ep | memory - 2 gb - so dimm 204-pin - ddr3 - 1066 mhz / pc3-8500 - unbuffered - non-ecc - for lenovo thinkcentre m58; thinkpad r400; r500; t500; w500; w700; x200; x200 tablet; x301 | Avl | RFQ |
45J5435-PE | edge memory | memory - 2 gb - dimm 240-pin - ddr3 - 1066 mhz / pc3-8500 - unbuffered - non-ecc - for lenovo thinkcentre a63; a70; a70z; m58; m58p; m90; m90p | Avl | RFQ |
593915-B21 | hp | memory - 16 gb - dimm 240-pin - ddr3 - 1066 mhz / pc3-8500 - cl7 - registered - ecc | Avl | RFQ |
44T1483-AX | axiom memory solutions | memory - 4 gb - dimm 240-pin - ddr3 - 1333 mhz / pc3-10600 - registered - ecc - for ibm system x idataplex dx360 m2; dx360 m3; system x3400 m2; x3500 m3; x35xx m2; x3650 m2 | Avl | RFQ |
49Y1400-AM | acp ep | memory upgrades - memory - 16 gb - dimm 240-pin low profile - ddr3 - 1066 mhz / pc3-8500 - registered - ecc - for ibm system x35xx m3; x3690 x5; x36xx m3; x3755 m3; x3850 x5; x3950 x5 | Avl | RFQ |
46C0600-AXA | axiom memory solutions | ibm supported - memory - 16 gb - dimm 240-pin very low profile - ddr3 - 1066 mhz / pc3-8500 - registered - ecc - for ibm bladecenter hs22 7870; hs22v 7871 | Avl | RFQ |
44T1571 | ibm | memory - 4 gb - dimm 240-pin low profile - ddr3 - 1333 mhz / pc3-10600 - cl9 - unbuffered - ecc - for system x3100 m4; x3200 m3 7327, 7328; x3250 m3 4251, 4252; x3250 m4 | Avl | RFQ |
627814-B21 | hp | memory - 32 gb - dimm 240-pin - ddr3 - 1066 mhz / pc3-8500 - cl7 - registered - ecc | Avl | RFQ |
500668-B21-AM | acp ep | memory - 1 gb - dimm 240-pin - ddr3 - 1333 mhz / pc3-10600 - cl9 - unbuffered - ecc | Avl | RFQ |
55Y3707-AA | acp ep | memory - 2 gb - so dimm 204-pin - ddr3 - 1066 mhz / pc3-8500 - unbuffered - non-ecc - for lenovo thinkcentre m90; thinkpad edge 14; 15; thinkpad t410; t510; w70x; x20x; x20x tablet | Avl | RFQ |
51J0493-PE | edge memory | memory - 4 gb - so dimm 204-pin - ddr3 - 1066 mhz / pc3-8500 - unbuffered - non-ecc - for lenovo thinkpad t400; t500; w500; w700; w700ds | Avl | RFQ |
44T1579-PE | edge memory | memory - 8 gb - dimm 240-pin very low profile - ddr3 - 1066 mhz / pc3-8500 - registered - ecc - for ibm bladecenter hs22 7870; hs22v 7871 | Avl | RFQ |
577606-001-AA | acp ep | memory - 4 gb - so dimm 204-pin - ddr3 - 1066 mhz / pc3-8500 - unbuffered - non-ecc - for hp pavilion dv8 | Avl | RFQ |
647871-B21-AMK | acp ep | memory upgrades - memory - 4 gb - dimm 240-pin - ddr3 - 1333 mhz / pc3-10600 - registered - ecc | Avl | RFQ |
46C0570-PE | edge memory | memory - 8 gb - dimm 240-pin very low profile - ddr3 - 1333 mhz / pc3-10600 - registered - ecc - for ibm bladecenter hx5 1909, 7872, 7873 | Avl | RFQ |
49Y1435-AM | acp ep | memory upgrades - memory - 4 gb - dimm 240-pin low profile - ddr3 - 1333 mhz / pc3-10600 - registered - ecc - for ibm system x idataplex dx360 m3; system x3400 m3; x35xx m3; x36xx m3; x3755 m3 | Avl | RFQ |
500662-16GB-PE | edge memory | memory - 16 gb : 2 x 8 gb - dimm 240-pin - ddr3 - 1333 mhz / pc3-10600 - registered - ecc | Avl | RFQ |
647873-B21-AMK | acp ep | memory upgrades - memory - 4 gb - dimm 240-pin - ddr3 - 1600 mhz / pc3-12800 - registered - ecc | Avl | RFQ |
593339-B21-AMK | acp ep | memory upgrades - memory - 4 gb - dimm 240-pin - ddr3 - 1333 mhz / pc3-10600 - registered - ecc | Avl | RFQ |
49Y1559 | ibm | memory - 4 gb - dimm 240-pin low profile - ddr3 - 1600 mhz / pc3-12800 - cl11 - 1.5 v - registered - ecc - for system x3550 m4 7914; x3630 m4 7158; x3650 m4 7915 | Avl | RFQ |
510401-001-AA | acp ep | memory - 2 gb - so dimm 204-pin - ddr3 - 1066 mhz / pc3-8500 - unbuffered - non-ecc - for hp hdx x18-1020, hdx x18-1050, hdx x18-1070, hdx x18-1080, hdx x18-1088, hdx x18-1090 | Avl | RFQ |
647877-B21 | hp | memory - 8 gb - dimm 240-pin - ddr3 - 1333 mhz / pc3-10600 - cl9 - registered - ecc | Avl | RFQ |
55Y3710-AX | axiom memory solutions | memory - 2 gb - so dimm 204-pin - ddr3 - 1333 mhz / pc3-10600 - unbuffered - non-ecc - for thinkcentre edge 71z; 91z; thinkcentre m71z; thinkpad edge e12x; e32x; e42x; e12x | Avl | RFQ |
44T1596 | ibm | memory - 4 gb - dimm 240-pin very low profile - ddr3 - 1333 mhz / pc3-10600 - cl9 - 1.5 v - registered - ecc - for bladecenter hx5 7872 | Avl | RFQ |
49Y1406 | ibm | memory - 4 gb - dimm 240-pin - ddr3 - 1333 mhz / pc3-10600 - cl9 - 1.35 v - registered - ecc - for system x idataplex dx360 m3; system x3400 m3; x35xx m3; x3630 m4; x36xx m3; x3755 m3 | Avl | RFQ |
604504-B21-PE | edge memory | memory - 4 gb - dimm 240-pin - ddr3 - 1333 mhz / pc3-10600 - registered - ecc | Avl | RFQ |
500656-B21-AM | acp ep | memory upgrades - memory - 2 gb - dimm 240-pin - ddr3 - 1333 mhz / pc3-10600 - cl9 - registered - ecc | Avl | RFQ |
49Y1405 | ibm | memory - 2 gb - dimm 240-pin - ddr3 - 1333 mhz / pc3-10600 - cl9 - 1.35 v - registered - ecc - for system x idataplex dx360 m3 6391; system x3620 m3; x3630 m4 7158 | Avl | RFQ |
604506-B21-PE | edge memory | memory - 8 gb - dimm 240-pin - ddr3 - 1333 mhz / pc3-10600 - registered - ecc | Avl | RFQ |
43R2032-AM | acp ep | memory upgrades - memory - 1 gb - dimm 240-pin - ddr3 - 1333 mhz / pc3-10600 - unbuffered - ecc - for lenovo thinkstation c20 4262, 4263, 4265; c20x 4269, 4272; d20 4155, 4158; s20 | Avl | RFQ |
500662-S21 | hp | memory - 8 gb - dimm 240-pin - ddr3 - 1333 mhz / pc3-10600 - cl9 - registered - ecc - smart buy | Avl | RFQ |
46C7451-AM | acp ep | memory - 8 gb - dimm 240-pin very low profile - ddr3 - 1333 mhz / pc3-10600 - registered - ecc - for ibm bladecenter hs22 7870; hs22v 7871 | Avl | RFQ |
500656-S21-AM | acp ep | memory upgrades - memory - 2 gb - dimm 240-pin - ddr3 - 1333 mhz / pc3-10600 - registered - ecc | Avl | RFQ |
593913-B21-PE | edge memory | memory - 8 gb - dimm 240-pin - ddr3 - 1333 mhz / pc3-10600 - registered - ecc | Avl | RFQ |
46C0599-PE | edge memory | memory - 16 gb - dimm 240-pin very low profile - ddr3 - 1333 mhz / pc3-10600 - registered - ecc - for p/n: 1754a1x, 1754a2x, 7870k5g | Avl | RFQ |
500670-6GB-PE | edge memory | memory - 6 gb : 3 x 2 gb - dimm 240-pin - ddr3 - 1333 mhz / pc3-10600 - unbuffered - ecc | Avl | RFQ |
57Y4389-AA | acp ep | memory - 1 gb - dimm 240-pin - ddr3 - 1333 mhz / pc3-10600 - unbuffered - non-ecc - for lenovo thinkcentre edge 71; thinkcentre m71; m81; m90; m91; thinkstation e20; e30 | Avl | RFQ |
500662-B21 | hp | memory - 8 gb - dimm 240-pin - ddr3 - 1333 mhz / pc3-10600 - cl9 - registered - ecc | Avl | RFQ |
500656-B21-PE | edge memory | memory - 2 gb - dimm 240-pin - ddr3 - 1333 mhz / pc3-10600 - cl9 - registered - ecc | Avl | RFQ |
500660-B21-AM | acp ep | memory - 4 gb - dimm 240-pin - ddr3 - 1066 mhz / pc3-8500 - cl7 - registered - ecc | Avl | RFQ |
593911-S21-AMK | acp ep | memory upgrades - memory - 4 gb - dimm 240-pin - ddr3 - 1333 mhz / pc3-10600 - registered - ecc | Avl | RFQ |
500670-B21-AM | acp ep | memory upgrades - memory - 2 gb - dimm 240-pin - ddr3 - 1333 mhz / pc3-10600 - cl9 - unbuffered - ecc | Avl | RFQ |
500666-S21 | hp | memory - 16 gb - dimm 240-pin - ddr3 - 1066 mhz / pc3-8500 - cl7 - registered - ecc - smart buy | Avl | RFQ |
43R2035-PE | edge memory | memory - 2 gb - dimm 240-pin - ddr3 - 1066 mhz / pc3-8500 - registered - ecc - for lenovo thinkstation d20 4155, 4158 | Avl | RFQ |
500660-12G-AM | acp ep | memory - 12 gb : 3 x 4 gb - dimm 240-pin - ddr3 - 1066 mhz / pc3-8500 - cl7 - registered - ecc | Avl | RFQ |
604504-B21-AMK | acp ep | memory upgrades - memory - 4 gb - dimm 240-pin - ddr3 - 1333 mhz / pc3-10600 - registered - ecc | Avl | RFQ |
500666-S21-AM | acp ep | memory upgrades - memory - 16 gb - dimm 240-pin - ddr3 - 1066 mhz / pc3-8500 - registered - ecc | Avl | RFQ |
500666-B21-AM | acp ep | memory upgrades - memory - 16 gb - dimm 240-pin - ddr3 - 1066 mhz / pc3-8500 - registered - ecc | Avl | RFQ |
55Y3709-AX | axiom memory solutions | memory - 1 gb - so dimm 204-pin - ddr3 - 1333 mhz / pc3-10600 - unbuffered - non-ecc - for lenovo thinkcentre edge 91; thinkcentre m91; thinkpad edge e32x; thinkpad t420; x121 | Avl | RFQ |
49Y1407-AMK | acp ep | memory upgrades - memory - 4 gb - dimm 240-pin - ddr3 - 1333 mhz / pc3-10600 - registered - ecc - for ibm system x idataplex dx360 m3; system x3400 m3; x3630 m4; x36xx m3; x3755 m3; x3950 x5 | Avl | RFQ |
510403-001-PE | edge memory | memory - 4 gb - so dimm 204-pin - ddr3 - 1066 mhz / pc3-8500 - unbuffered - non-ecc - for hp 620, elite 8000; envy 13, 15; pavilion dv4, dv6, dv7; thin client t5740; touchsmart tm2 | Avl | RFQ |
51J0503-PE | edge memory | memory - 1 gb - dimm 240-pin - ddr3 - 1066 mhz / pc3-8500 - unbuffered - ecc - for lenovo thinkstation d20 4155, 4158, 4218; s20 | Avl | RFQ |
46R3326-PE | edge memory | memory - 2 gb - so dimm 204-pin - ddr3 - 1066 mhz / pc3-8500 - unbuffered - non-ecc - for lenovo thinkcentre m58 7359, 7637, 8820; m58p 6136, 7479, 9961 | Avl | RFQ |
627808-B21 | hp | memory - 16 gb - dimm 240-pin - ddr3 - 1333 mhz / pc3-10600 - cl9 - registered - ecc | Avl | RFQ |
627812-B21-AX | axiom memory solutions | memory - 16 gb - dimm 240-pin - ddr3 - 1333 mhz / pc3-10600 - registered - ecc | Avl | RFQ |
593907-S21 | hp | memory - 2 gb - dimm 240-pin - ddr3 - 1333 mhz / pc3-10600 - cl9 - registered - ecc - smart buy | Avl | RFQ |
500658-12GB-PE | edge memory | memory - 12 gb : 3 x 4 gb - dimm 240-pin - ddr3 - 1333 mhz / pc3-10600 - registered - ecc | Avl | RFQ |
55Y3716-PE | edge memory | memory - 2 gb - so dimm 204-pin - ddr3 - 1333 mhz / pc3-10600 - unbuffered - non-ecc - for thinkcentre edge 71z; 91z; thinkcentre m71z; thinkpad edge e12x; e32x; e42x; e12x | Avl | RFQ |
516423-24G-AM | acp ep | memory upgrades - memory - 24 gb : 3 x 8 gb - dimm 240-pin - ddr3 - 1066 mhz / pc3-8500 - cl7 - registered - ecc | Avl | RFQ |
593911-B21-AMK | acp ep | memory upgrades - memory - 4 gb - dimm 240-pin - ddr3 - 1333 mhz / pc3-10600 - registered - ecc | Avl | RFQ |
4527-AX | axiom memory solutions | memory - 16 gb : 2 x 8 gb - dimm 240-pin - ddr3 - 1066 mhz / pc3-8500 - registered - ecc | Avl | RFQ |
1GBPC1800DDR3 | centon electronics | memory - 1 gb - dimm 240-pin - ddr3 - 1800 mhz / pc3-14400 - unbuffered - non-ecc | Avl | RFQ |
593921-B21-PE | edge memory | memory - 2 gb - dimm 240-pin - ddr3 - 1333 mhz / pc3-10600 - unbuffered - ecc | Avl | RFQ |
500664-B21-AM | acp ep | memory - 8 gb - dimm 240-pin - ddr3 - 1066 mhz / pc3-8500 - registered - ecc | Avl | RFQ |
647893-B21 | hp | memory - 4 gb - dimm 240-pin - ddr3 - 1333 mhz / pc3-10600 - cl9 - registered - ecc | Avl | RFQ |
55Y3709-PE | edge memory | memory - 1 gb - so dimm 204-pin - ddr3 - 1333 mhz / pc3-10600 - unbuffered - non-ecc - for lenovo thinkcentre edge 91; thinkcentre m91; thinkpad edge e32x; thinkpad t420; x121 | Avl | RFQ |
500668-B21 | hp | memory - 1 gb - dimm 240-pin - ddr3 - 1333 mhz / pc3-10600 - cl9 - unbuffered - ecc | Avl | RFQ |
500664-24G-AM | acp ep | memory - 24 gb : 3 x 8 gb - dimm 240-pin - ddr3 - 1066 mhz / pc3-8500 - registered - ecc | Avl | RFQ |
57Y4390-AA | acp ep | memory upgrades - memory - 2 gb - dimm 240-pin - ddr3 - 1333 mhz / pc3-10600 - unbuffered - non-ecc - for lenovo thinkcentre edge 71; thinkcentre m71; m80; m81; m90; m91; thinkstation e20; e30 | Avl | RFQ |
593923-B21-PE | edge memory | memory - 4 gb - dimm 240-pin - ddr3 - 1333 mhz / pc3-10600 - unbuffered - ecc | Avl | RFQ |
49Y1429-AM | acp ep | memory - 2 gb - dimm 240-pin very low profile - ddr3 - 1333 mhz / pc3-10600 - registered - ecc - for ibm bladecenter hs22 7809, 7870; hs22v 7871 | Avl | RFQ |
500656-S21 | hp | memory - 2 gb - dimm 240-pin - ddr3 - 1333 mhz / pc3-10600 - cl9 - registered - ecc | Avl | RFQ |
627814-B21-PE | edge memory | memory - 32 gb - dimm 240-pin - ddr3 - 1066 mhz / pc3-8500 - registered - ecc | Avl | RFQ |
647875-B21 | hp | memory - 8 gb - dimm 240-pin - ddr3 - 1333 mhz / pc3-10600 - cl9 - registered - ecc | Avl | RFQ |
593339-B21-PE | edge memory | memory - 4 gb - dimm 240-pin - ddr3 - 1333 mhz / pc3-10600 - registered - ecc | Avl | RFQ |
593913-B21 | hp | memory - 8 gb - dimm 240-pin - ddr3 - 1333 mhz / pc3-10600 - cl9 - registered - ecc | Avl | RFQ |
604506-B21 | hp | memory - 8 gb - dimm 240-pin - ddr3 - 1333 mhz / pc3-10600 - cl9 - registered - ecc | Avl | RFQ |
49Y1563-AX | axiom memory solutions | memory - 16 gb - dimm 240-pin - ddr3 - 1333 mhz / pc3-10600 - registered - ecc - for ibm system x3550 m3 7944; x3630 m4 7158; x3650 m3 7945 | Avl | RFQ |
![]() |
“We Proudly Support Intrepid Fallen Heroes Fund that serves United States Military Personal experiencing the Invisible Wounds of War : Traumatic Brain Injury (TBI) and Post Traumatic Stress (PTS). Please visit website (www.fallenheroesfund.org) and help in their valiant effort”. |
If You’re Ever Looking for NSN parts Or Have an Aircraft On Ground Situation, Don’t forget That We offer Competitive Pricing and Guaranteed On-Time Delivery.
Request for Quote